vortec 4300 fuel pressure regulator. Auto Meter® Cobalt Digital Series 2-1/16" EGT Pyrometer Gauge, 0-2000 F (6945) 0 # mpn2295758. New 318 sold 318 sold 318 sold. 3L V6: Fuel & Air: Fuel Injection Pressure Regulator: Intentionally blank: Related Parts. Post #10 of 11 (19424 views) Re: 88 chevy 350 w/ tbi problems. marlin model 60w nra 125th anniversary edition Discussion Starter · #1 · Jun 8, 2019. I recently rebuilt my 1990 k1500 350 tbi and upgraded to vortec heads. I can time the engine to 0 degrees with the ecm wire disconnected and it runs good at idle, however, when i turn the truck off, unplug the battery and connect the ecm wire, the timing just stays at 0 degrees and doesnt advance it like ...I hate to sound like a broken record, but on a Chevy TBI engine, the timing needs to be at ZERO. Having the timing advanced or retarded will cause problems, … rossi 20 gauge double barrel coach gun value Mar 24, 2012 · Chevrolet Repair 1994 k1500 350 tbi..rough idle..gear runs fine..going down..exhaust… Hi I have a 1994 k1500 350 tbi and have been chasing a problem with intermittent rough idle and low idle in gear runs fine when reved and going down the road and I can also hear a quiet muffled backfire through the exhaust at idle that is also intermittent. reiki jobs remote ٠٦/٠٢/٢٠٢١ ... Replacing the steering coupler assembly on an 88-98 OBS Chevy 1500 · Chevy Tbi running rich problem solving · The ONE REASON Why My 25yr Old Truck ...The fuel circulates from tank to TBI back to tank. One thing that can fail is the short hose from the pump to the fuel line fitting inside the tank. That can split causing the very symptom you're describing. While you could just replace that hose, you may as well drop in a new pump assembly and be done. Bosch or Delphi with a new sock filter.٠٦/٠٢/٢٠٢١ ... Replacing the steering coupler assembly on an 88-98 OBS Chevy 1500 · Chevy Tbi running rich problem solving · The ONE REASON Why My 25yr Old Truck ... wellspan patient portalFitech Single Plane Vs Dual Plane Dyno ResultsAustin Peay State University is located in Clarksville, TN and the Softball program competes in the Ohio Valley Conference conference.Oh, I understand fine how the timing works. I can also read and see this guy was asking about TBI timing. From what I gather you're not really familiar with the GM TBI timing procedure. The ESC (Electronic Spark Control) module takes care of advancing the timing (such as when RPM's are increasing) and retarding the timing (such as under … hollandfarms Aug 20, 2007 · The engine is a rebuilt 350. I have a knock count even at idle with the timing at 0 degrees. I can't find any sensors that seem bad. Every question thought and help is greatly appreciated. I'm at the end on this thing, and it's winning. It's definitely an ignition issue, but I can't seem to make any progress. ٠٦/٠١/٢٠١٦ ... It's also possible you have a misfire or two or three. Moisture can condense in a distributor overnight and cause problems. A timing light ...Aug 20, 2007 · The engine is a rebuilt 350. I have a knock count even at idle with the timing at 0 degrees. I can't find any sensors that seem bad. Every question thought and help is greatly appreciated. I'm at the end on this thing, and it's winning. It's definitely an ignition issue, but I can't seem to make any progress. IGNITION TIMING 1. Set parking brake. Block drive wheels. Place transmission in Neutral or Park. Warm engine to operating temperature. Turn A/C off (if equipped). Ensure Malfunction Indicator Light (MIL) is not on. 2. Disconnect Electronic Spark Timing (EST) by-pass connector (Tan/Black wire) which is located near distributor or in cab behind ...The engine runs smooth sometimes and runs horribly bad at others like it is severely out of time, backfiring through the throttle body. I replaced timing chain, injectors, tune-up and fuel pressure regulator. The mechanic changed out the computer, distributor and checked the ignition and MAP sensors. The problem persists. cisco ip phone 7942 voicemail password reset ٠٧/٠٨/٢٠١٤ ... getting ready to change out the timing chain on my 92 350 379k ... got it apart no problem,pan gasket looks good ,tomorrow ill clean and ...The engine runs smooth sometimes and runs horribly bad at others like it is severely out of time, backfiring through the throttle body. I replaced timing chain, injectors, tune-up and fuel pressure regulator. The mechanic changed out the computer, distributor and checked the ignition and MAP sensors. The problem persists. scalene muscle spasm symptoms The engine is a rebuilt 350. I have a knock count even at idle with the timing at 0 degrees. I can't find any sensors that seem bad. Every question thought and help is greatly appreciated. I'm at the end on this thing, and it's winning. It's definitely an ignition issue, but I can't seem to make any progress.Oct 26, 2010 · 5.3L versus 5.7L V8 "Vortec" Engines. We all know and love the venerable Chevrolet 'small block' V8 engine that has been under the hood of many different GM cars and trucks - as well as being offered in various displacements from 265 to 400 cubic inches throughout the past five decades. The best-known and most-beloved has to be the "350" or 5.7 ... I hate to sound like a broken record, but on a Chevy TBI engine, the timing needs to be at ZERO. Having the timing advanced or retarded will cause problems, including hesitation, bogging or even misfire. Unplug the tan/black wire, time the engine to ZERO degrees and reconnect the tan/black wire. craigslist puppies for sale naples fl Here's the TWO SENSORS YOU NEED TO REPLACE FOR BETTER IDLE !! 1ROAD Why You Shouldn't Adjust the Idle of your Chevy TBI 1990 Chev K1500 Surge Stalling After Hot Soak Diagnosis and Understanding...The engine is a rebuilt 350. I have a knock count even at idle with the timing at 0 degrees. I can't find any sensors that seem bad. Every question thought and help is greatly appreciated. I'm at the end on this thing, and it's winning. It's definitely an ignition issue, but I can't seem to make any progress.Just installed a rebuit TBI 350 essentially stock (has new cam but wasn't suppose to require adjusting ECM chip). Wit the EIC wire disconnected (or connected) … esoterica tobacco release dates 2021 2022 Chevy Trailblazer New Mahogany Red Color: First Look gmauthority. 2002 Chevrolet TrailBlazer LS 4WD SPORT UTILITY 4-DR - 6594095656. Runs and drives Excellent with no problems. 87 Chevy Tbi Wiring Diagram - Search Best 4K Wallpapers www. 3lt Wiring Problem At Block Just Below Steering Looking For A Headlight Wiring www.for a GM TBI application to read the data, or to check for stored codes. Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck. Discussion Starter · #1 · Jun 8, 2019. I recently rebuilt my 1990 k1500 350 tbi and upgraded to vortec heads. I can time the engine to 0 degrees with the ecm wire disconnected and it runs good at idle, however, when i turn the truck off, unplug the battery and connect the ecm wire, the timing just stays at 0 degrees and doesnt advance it like it should. gawk gawk Assuming the engine starts, make sure the engine is idling at proper idle speed and not on the fast-idle cam of the choke. It’s important that the engine be idling at its warm-idle rpm. It’s likely that our static ignition timing at the crankshaft at idle may not be the desired 10 degrees BTDC.I have a 88 BURB with 350 TBI. Oil pressure switch does nothing for timing. My timing is 0 at TDC The procedure for checking timing. 1. turn off engine 2. disconnect brown wire with black stripe. 3. set timing to 0 4. shut engine off 4. hook brown wire back up 5. disconect battery to clear computer.The rotor tip should point to the No. 1 terminal when at the harmonic damper the timing pointer is at about 16 degrees BTDC on the compression stroke. Initial timing doesn't have to be...5.3L versus 5.7L V8 "Vortec" Engines. We all know and love the venerable Chevrolet 'small block' V8 engine that has been under the hood of many different GM cars and trucks - as well as being offered in various displacements from 265 to 400 cubic inches throughout the past five decades. The best-known and most-beloved has to be the "350" or 5.7 ... fleshy tissue during period reddit There is a switch in the throttle position sensor that is supposed to be triggered when the throttle lever goes to idle to tell the computer to idle. But since the linkage didn't go to the stop, the idle switch wasn't turned on so the computer didn't know to idle and caused the engine to run rough. This problem might also happen if the ... yb May 20, 2010 · Here is what I have done so far: Fresh build on engine- 250 miles so far New plugs New plug wires New cap New rotor New fuel filter New air filter Timing set to 0 degrees with tan wire unplugged per the book No vacuum leaks- checked every line and around throttle body with propane Fuel pressure rock solid at 12.5 psi EGR valve tested and passed I hate to sound like a broken record, but on a Chevy TBI engine, the timing needs to be at ZERO. Having the timing advanced or retarded will cause problems, … plastic shims lowes I am in the final stages of dropping in a tbi 350 out of a 91 chevy pickup into my CJ. I am getting code 43 among others. When I set the timing to 0 degress with the est wire unpluged, the timing will initially jump about 2-4 degrees when I accelerate then drop right back down to 0. The...It's with the Bypass Signal that the computer starts to retard and advance ignition timing with the IC Signal. So, then above 400 RPM (any RPM above this and the ECM considers the engine as having started) the fuel injection computer starts to control the ignition timing. asp net core oauth2 If engine has been reworked, it isn't uncommon for a different timing cover to be used, often timing covers have the marks in a different location to enable viewing with different accessories installed, so if the cover's changed but balancer wasn't the marks won't always agree. SABL Administrator, TSF Manager Joined Jul 4, 2008 30,525 PostsFeb 23, 2006 · The ESC (Electronic Spark Control) module takes care of advancing the timing (such as when RPM's are increasing) and retarding the timing (such as under heavy load when the engine begins to knock). The only timing the end-user sets is to establish the reference timing, in this case it's 0* with the ESC wire disco'd on GM TBI engines. The outer hubs on these engines have been known to shift moving your timing mark out of position. You can remove the #1 spark plug and turn the engine over slowly until you feel air being pushed out (compression stroke). Then get the piston on TDC using a bore scope or piece of wire.Jun 29, 2007 · injection system. Here are a few commonly asked questions about fuel injection problems. Match the issue # with the chart below for an explanation of the … precious moments dolls Nothing changed except the position of the cap with the replacement distributor. It had bad valve guide seals. Those were just replaced and now it fires more often and doesn't smoke. But the problem persisted before they were changed. Through plugging and playing I came to realize that it only runs with the set timing wire disconnected.this engine runs rough when cold misfires and so on, then when hot while running at higher speeds it backfires through the tbi unit. I changed the plugs and there is no change. It seems as though it shut of an on in a split second as im driving it. this problem happend suddenly and im not sure if it is a cap&rotor or timing chain. sysbot pokemon reddit Here is what I have done so far: Fresh build on engine- 250 miles so far New plugs New plug wires New cap New rotor New fuel filter New air filter Timing set to 0 degrees with tan wire unplugged per the book No vacuum leaks- checked every line and around throttle body with propane Fuel pressure rock solid at 12.5 psi EGR valve tested and passed 2000mg thc gummies May 21, 2017 · There is a switch in the throttle position sensor that is supposed to be triggered when the throttle lever goes to idle to tell the computer to idle. But since the linkage didn’t go to the stop, the idle …١٣/٠٤/٢٠١٧ ... Tahoe & Suburban - 1994 350 tbi timing problem - I got a 1994 Chevrolet K 2500 suburban 350 that I can't seem to time correctly the harmonic balancer shows ...2,319 Posts. #3 · Oct 20, 2011. ignore the compression gauge and marks, just pull the number one plug and rotate engine with a straw sitting in it and resting on the top of the piston. The straw will rise, pause, then start to drop, when it starts to drop, stop and go back. TDC is midway between the rise and fall points.Here's the TWO SENSORS YOU NEED TO REPLACE FOR BETTER IDLE !! 1ROAD Why You Shouldn't Adjust the Idle of your Chevy TBI 1990 Chev K1500 Surge Stalling After Hot Soak Diagnosis and Understanding... hot shot car hauler for sale Jul 13, 2022 · A Chevy 350 TBI bogging on acceleration is somewhat of a common problem that can be caused by several factors. Addressing the problem early can help not only restore the performance of the engine but also prevent further damage. If your Chevy 350 TBI bogs down on acceleration, there are a few potential causes that you should check.Nov 18, 2003 · Definitely start with timing. Unplug the tan wire with black line (or is it vice versa ) - should be by the master cylinder. Then set the timing to 0*, reconnect the wire. You may have to reset the code from having the wire unplugged but if so, either use an AutoXray to clear it or unhook the battery for a few minutes. ١٣/٠٤/٢٠١٧ ... Tahoe & Suburban - 1994 350 tbi timing problem - I got a 1994 Chevrolet K 2500 suburban 350 that I can't seem to time correctly the harmonic balancer shows ... hunters creek accident today ٠٧/٠٨/٢٠١٤ ... getting ready to change out the timing chain on my 92 350 379k ... got it apart no problem,pan gasket looks good ,tomorrow ill clean and ...Nov 18, 2003 · Definitely start with timing. Unplug the tan wire with black line (or is it vice versa ) - should be by the master cylinder. Then set the timing to 0*, reconnect the wire. You may have to reset the code from having the wire unplugged but if so, either use an AutoXray to clear it or unhook the battery for a few minutes. To set the timing on a 350 Chevy without a timing light, follow these steps: 1- Take The Spark Plugs Out Of The Driver-Side Engine Cylinder As you manually turn the engine over, place your finger over the hole to feel the compression stroke. Wait for the engine to start after turning the key. 2- Turn The Motor Over onlyfans account already connected to another user The outer hubs on these engines have been known to shift moving your timing mark out of position. You can remove the #1 spark plug and turn the engine over slowly until you feel air being pushed out (compression stroke). Then get the piston on TDC using a bore scope or piece of wire.Jan 26, 2009 · I've never had a problem using any kind of carb intake on a 305/350 tbi or tp. Just hog out the centre holes and good to go. Years later still no leaks. chopped51, Jan 26, 2009 SHARE POST #5 buildinga55 Member from Springfield, MO If I use this engine, and I convert to carb, do I also need a new distributor? I have read that is true. predator 212 turbo kit There are a few reasons behind 350 TBI starting problems and they are as follows: Fuel not reaching the tank and cylinders. Computer memory detecting trouble sensor code. Discharged battery or lose starting wires. Damaged starting system. Erroneous security system. Wear out or blow a fuse.2,319 Posts. #3 · Oct 20, 2011. ignore the compression gauge and marks, just pull the number one plug and rotate engine with a straw sitting in it and resting on the top of the piston. The straw will rise, pause, then start to drop, when it starts to drop, stop and go back. TDC is midway between the rise and fall points.The rotor tip should point to the No. 1 terminal when at the harmonic damper the timing pointer is at about 16 degrees BTDC on the compression stroke. Initial timing doesn't have to be... cv axle torque specsAug 17, 2022 · The short answer is that Chevy officially used throttle body injection from 1987 to 1995. There were other more primitive forms of throttle body injection found about …What is Chevy 366 No Power. Stroke is the same as a 396, 402, or 427, but not a 454 as it is longer stroke and is externally balanced like a 400sbc. That's why so many people have trouble with dim headlights Posted 9/19/2015 14:01 (#4797526 - in reply to #4796274) Subject: RE: chevy 366 problems: We've. 0L Vortec Engine Problems.2,319 Posts. #3 · Oct 20, 2011. ignore the compression gauge and marks, just pull the number one plug and rotate engine with a straw sitting in it and resting on the top of the piston. The straw will rise, pause, then start to drop, when it starts to drop, stop and go back. TDC is midway between the rise and fall points. homes for sale hocking county ohio Nov 18, 2003 · Definitely start with timing. Unplug the tan wire with black line (or is it vice versa ) - should be by the master cylinder. Then set the timing to 0*, reconnect the wire. You may have to reset the code from having the wire unplugged but if so, either use an AutoXray to clear it or unhook the battery for a few minutes. 01 Chevy Malibu, car clicks once and loses all power after trying to start as if the battery is dead. Any help? 131 113 r/MechanicAdvice Join • 15 days ago 2022 Silverado 2.7L turbo oil leak below 16,000 miles. Anyone else experiencing this problem? 261 163 r/MechanicAdvice Join • 1 mo. ago 03 mitsubishi galant. Wheel won't come off. What is this? stable diffusion img2img parameters Definitely start with timing. Unplug the tan wire with black line (or is it vice versa ) - should be by the master cylinder. Then set the timing to 0*, reconnect the wire. You may have to reset the code from having the wire unplugged but if so, either use an AutoXray to clear it or unhook the battery for a few minutes.The 89 SHOULD have a MAF, they switched over to the MAP in 90. You could also have a bad TPS. I've never seen a GM TBI 350 or 305 with a MAF, they all had MAP sensors, it was always a speed density system. Bad TPS is a good suggestion though, and those motors had issues with the distributor pickup coil.300 HP Chevy 350 TBI Street Performance Engine for Full Size SUV's 1987-1995. 300 HP Chevy 350 TBI Street Performance Engine for Full Size SUV's 1987-1995. Skip to Content ... Timing cover. Balancer. Flexplate. Water pump. PCV valve. Water neck. Edelbrock 3704 intake manifold. HEI Ignition & Wires. Lucas break-in oil. Performance ...Chevrolet Repair 1994 k1500 350 tbi..rough idle..gear runs fine..going down..exhaust… Hi I have a 1994 k1500 350 tbi and have been chasing a problem with intermittent rough idle and low idle in gear runs fine when reved and going down the road and I can also hear a quiet muffled backfire through the exhaust at idle that is also intermittent. walkie talkie earpiece and microphone for a GM TBI application to read the data, or to check for stored codes. Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck.300 HP Chevy 350 TBI Street Performance Engine for Full Size SUV's 1987-1995. 300 HP Chevy 350 TBI Street Performance Engine for Full Size SUV's 1987-1995. ... Timing cover. Balancer. Flexplate. Water pump. PCV valve. Water neck. Edelbrock 3704 intake manifold. HEI Ignition & Wires. Lucas break-in oil. Performance gasket kit.Timing was 35 degrees off, so i set it back to 0, where its supposed to be on this engine. It ran great for a few minutes, then started making some scary noises, sounded like valvetrain problems. Set the timing back to where it was before, disconnecting the tan ALDL on the firewall so the comp wouldnt set it back.Aug 20, 2007 · Joined May 3, 2003. 27,408 Posts. Discussion Starter · #1 · Aug 20, 2007. I have surging at idle, stumbling, and generally shitty performance. I just can't nail down the problem. The engine is a rebuilt 350. I have a knock count even at idle with the timing at 0 degrees. I can't find any sensors that seem bad. Every question thought and help ... 1944 copper wheat penny brown no mint mark regular strike Chevrolet Repair 1994 k1500 350 tbi..rough idle..gear runs fine..going down..exhaust… Hi I have a 1994 k1500 350 tbi and have been chasing a problem with intermittent rough idle and low idle in gear runs fine when reved and going down the road and I can also hear a quiet muffled backfire through the exhaust at idle that is also intermittent. used crematory for sale near illinois Jun 8, 2019 · I recently rebuilt my 1990 k1500 350 tbi and upgraded to vortec heads. I can time the engine to 0 degrees with the ecm wire disconnected and it runs good at idle, however, when i turn the truck off, unplug the battery and connect the ecm wire, the timing just stays at 0 degrees and doesnt advance it like it should. hy hunter firearms 1994 1500 5.7 TBI (3 year old Jasper ... FWIW. Maybe yours is plugged. Sounds like you have enough gas. I'm starting to think it's a timing problem. Please …Nov 7, 2022 · 350 TBI 1995 Chevy 5.7 Firing Order Diagram In GM trucks from 1993 to 1995, the L03 interaction of the 350 engine produced 255 lb-ft of torque at 2,400 rpm and …Jun 9, 2020 · ANSWER. The source of a "cranks, but no start" problem on your Chevy 350 distributor install is most likely incorrect distributor alignment with the harmonic balancer … nipmuc chief 765 Posts. Discussion Starter · #1 · Oct 8, 2010. we have a 91' gmc topkick with a tbi 366. it will run good and have decent power till it starts to get warm (coolant temp) then it runs like crap. exhaust smells really gassy, you can at times have the throttle floored and the engine just idles, then if you move the throttle alittle it might ...We bought an '89 Chevy K1500 with a 350 in it and 224k miles, with the nasty Getrag trans I knew nothing about until after purchasing the truck. Anyway, we have been chasing a rough idle ever since we got it. Well, it didn't seem to idle rough until a few weeks after we bought it haha. It will idle around 550rip'ems but it's pretty rough.I hate to sound like a broken record, but on a Chevy TBI engine, the timing needs to be at ZERO. Having the timing advanced or retarded will cause problems, including hesitation, bogging or even misfire. Unplug the tan/black wire, time the engine to ZERO degrees and reconnect the tan/black wire. wi cabins for sale under dollar100 000 for a GM TBI application to read the data, or to check for stored codes. Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck.With the quality components we use, roller cam, roller lifters, and the machining and balancing processes we offer it’s a package that is longer lasting than a stock engine. Included in this package is a 5 year/50,000 mile warranty. PACKAGE OPTIONS TURN KEY - $6,600 Custom paint job Valve covers Breather Oil pan Timing cover Balancer FlexplateWe bought an '89 Chevy K1500 with a 350 in it and 224k miles, with the nasty Getrag trans I knew nothing about until after purchasing the truck. Anyway, we have been chasing a rough idle ever since we got it. Well, it didn't seem to idle rough until a few weeks after we bought it haha. It will idle around 550rip'ems but it's pretty rough.Jan 20, 2023 · GM 12680750 Engine Timing Set. AU $195.87. Free postage. 3 pc. Single Roller Timing Set Chevy/GMC 5.7L V8 TBI 350 Vin K Engine Pro 3055. Sponsored. AU $75.08. Free postage. festoon removal surgery cost run stock timing with 87, the best I could ever get was 15 to 16 MPG and it did not run as well either. Been doing it this way for years. -- Posted using the http://www.autoforumz.com interface,...٠٦/٠١/٢٠١٦ ... It's also possible you have a misfire or two or three. Moisture can condense in a distributor overnight and cause problems. A timing light ...I have a 1995 chevy 350 tbi that is running rough and stalls. all ... The vehicle control module is the problem then this has drivers that control the flow of the Injectors You will need to get the VCM reprogrammed after you get a replacement I ... I set the timing on this 88 chevy pickup w/ 350 in it. It runs great like new ...The outer hubs on these engines have been known to shift moving your timing mark out of position. You can remove the #1 spark plug and turn the engine over slowly until you feel air being pushed out (compression stroke). Then get the piston on TDC using a bore scope or piece of wire. Then look to see where your timing mark is on the balancer. 2014 gmc acadia radio no sound Dec 5, 2016 · Dec 5, 2016. #1. Hey everybody, I have a FJ60 with a stroker 383 and a TBI injection setup. I am at a lost and have done multiple searches on the web and forums and cannot find the exact situation that I am experiencing. I have gone through all of the timing procedures (disconnect the ESC wire, set base timing, disconnect (-)battery cable etc ... May 21, 2017 · There is a switch in the throttle position sensor that is supposed to be triggered when the throttle lever goes to idle to tell the computer to idle. But since the linkage didn’t go to the stop, the idle …It is located on the left front corner of the TBI body, just ahead of the throttle arm. By now, most of the TBI bodies have the plug removed that covered the throttle adjusting screw. If not, remove it using a sharp pointed tool. Most screws have a T25 torx head, but they also can be an allen head screw.5.3L versus 5.7L V8 "Vortec" Engines. We all know and love the venerable Chevrolet 'small block' V8 engine that has been under the hood of many different GM cars and trucks - as well as being offered in various displacements from 265 to 400 cubic inches throughout the past five decades. The best-known and most-beloved has to be the "350" or 5.7 ... 4k usb camera blackZ71Jeff Said: That is correct, a 98 K1500 Silverado with 5.7 TBI. OBD2 is the scan tool I have been using to find fault codes. Just talked to my mechanic and said timing can be done both ways. If using light, the set timing connector is disconnected and reset once correct timing is set @ 4 degrees after TDC. ٠٦/٠٢/٢٠٢١ ... Replacing the steering coupler assembly on an 88-98 OBS Chevy 1500 · Chevy Tbi running rich problem solving · The ONE REASON Why My 25yr Old Truck ... kayo tt125 manual A stock 350 motor can have as little as 145 horsepower and up to 370 horsepower in the LT1 model that was stock in the late 1960 Corvette. The Chevy stock 350 motor had a huge decrease in performance during the 1970’s fuel shortage.Jun 8, 2019 · Discussion Starter · #1 · Jun 8, 2019. I recently rebuilt my 1990 k1500 350 tbi and upgraded to vortec heads. I can time the engine to 0 degrees with the ecm wire disconnected and it runs good at idle, however, when i turn the truck off, unplug the battery and connect the ecm wire, the timing just stays at 0 degrees and doesnt advance it like ... behr neutral paint colors for a GM TBI application to read the data, or to check for stored codes. Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck.The cure for this, which involves rotating the oil-pump drive just enough to allow the. diagram engine hyundai wiring 4l chevy electrical tips. Total Mechanical Timing (with vacuum advance dis-connected and plugged) in the 32-38 degree range 'All in' around 2500-3000 RPM. 350 Chevy Small Block V8 Distributors in-stock with same-day shipping. For your 1991: The set timing wire is located, under the hood, on the main harness that goes from the engine to the firewall, on the passenger side, sometimes underneath the black plastic cover (if it's still there) that covers the junction block, relays & fuses. It's near the top usually on the back side of the harness. deloitte second round interview