96 lt1 no spark. before i start throwing new parts at it.

96 lt1 no spark. just came in from the garage disgusted after trying to start my 95 lt1 camaro No spark at the plug good spark at the coil. Start by checking the 10 amp ignition fuse in the underhood electrical center. the ecm sends a signal to the icm. can hear fuel pump 4. I Have no spark. Changed the coil and the ICM still no spark. 7L. The optispark had been replaced already. If no, pink wire from fuse to B on coil is bad. 23 gears, Lakewood traction bars, Spohn chromemoly driveshaft. Com Free App Dec 15, 2019 · You have a lot of comparing of wires between 96 car & 94 engine. For the no spark thing go to www. Apr 11, 2013 · vats doesn't kill spark only fuel. Now I have a no spark problem. I changed the plug wires about a month ago. To replace it the water pump must be Feb 12, 2015 · with no spark the distributor is the most common reason. Check the coil wire. Opti wire pigtail may have different connectors between 94 & 96. if this signal doesnt happen you lose fuel AND spark. no codes 2. I have power to the ICM then I unhooked the opti-spark harness from the PCM and checked the power to the PCM. Fuel pressure Feb 18, 2010 · LT1-LT4 Modifications - lt1 has no spark - hoping for some people that know lt1s wellnot all the people that point at the opti every time before i start throwing new parts at itgot a 95 z28 took motor out replaced oil pan intake rear main timing cover gaskets, now got the motor back in the car and have no Jan 18, 2006 · Opti_spark is a likely culprit, but make sure to have him do, what I didnt do, before I purchased and changed out my opti-spark (95-Z28). It is very simple and only about $80. Thoughts? - Cranks, never fires. this is my first 4th gen camaro my last camaro was a 1989. I just bought a 1986 camaro with a 1997 LT1 swap. Jump to Latest 96 WS6. Aug 14, 2022 · Had a couple issues during the rebuild process but resolved the issues. I just replaced the ICM, which was the cause of no spark on my LT1. 73 posi, Spohn sways, IMR lowers, fully poly, KYB, FIPK, air Nov 16, 2013 · Hello everyone, I am new to the forums here. Don't know if you've got this far, but 94 & 96 use a different coil icm connector. You can also test the ignition coil module connector for voltage and ground - google it for instructions. Here is what I did so far. I have a 96 9C1 with the LT1 engine. If you have spark it will be obvious. Dec 14, 2012 · My bad, I forgot 95's are also pin driven. i also had no fuel at the fuel rail so i replaced the Mar 11, 2015 · Let me start out by saying, I know this forum is mostly for Camaros and the like, but I have engine trouble with an LT1 and I figured this would be the best place to start. Oct 31, 2008 · The Opti-Spark system relies on two signals generated by an optical sensor pair and a timing disk. Where is it? The opti is mounted on the front of the LT1, above the crank snout and behind the water pump. Mar 7, 2011 · C4 Tech/Performance - LT1 no start. the opti sends a timing signal to the ecm. 96 Caprice 9C1 LT1 3. The sensors produce a high-resolution signal of 180 pulses per crankshaft revolution (for ignition system accuracy), and a profiled low-resolution signal. What happened was i was just took off from the house and i made it a block and she just died. 1 2 3. no spark at spark plugs 7. If this is poor forum manners let me know. Sent from my ASUS Transformer Pad TF300T using AutoGuide. fuel in fuel rail (rags below pressure relief/connector and press, fuel escapes every time (didn't have a pressure gauge at the time). 6. the coil and icm get constant power from the ignition switch. there is no spark from the coil so it`s dead before getting to the coil. I got all my powers and grounds to the pcm and are show 12v while cranking over. :usa: The GM Optispark is an optically-triggered ignition distributor used on the LT1, LT4 and L99 engines. Aug 25, 2007 · 97 Comp T/A #161 383 Callies dragon slayer crank, 4 bolt billet mains, Howards billet rods 5. I have a 1996 Cadillac Fleetwood Brougham, 227k miles, LT1 5. After installing the pcm I still have no spark so I hooked it up to a scan tool and all 40 sensors didn't pass the initial test. 1. I tried the basics listed below and read thru a few threads on the issue. You can test icm at an auto parts store Unfortunately, LT1 owners have had long-term reliability problems with the Opti-Spark, and even though it has been around for 11 years now, many enthusiasts are still in the dark when it comes to today we have a 93 pontiac trans am with a LT1 we have no spark if you have a scope its a easy diag but this right here will cut your guess work down we need Apr 23, 2010 · Hi I have a 96 Caprice with the L99. if the vehicle has over 100K miles that would be a good guess. The "opti" has two parts, a low-voltage optical section and a high-voltage cap and rotor section. Feb 11, 2014 · LT1 Cranks, has spark & fuel, no start. I have power there as well. What kind of plug would you guys recommend i run? Also I am going to be running and MSD6AL box to boost my ignition. I get in the car to start it, it cranks over for a second and i let off the key, expecting the engine to start. It is a part that costs about $10. Nov 17, 2009 · :bsflag kay here`s the latest new`s with no end in sight lol. . 825, JE forged pistons and pins, TPIS/AFR heads, CCam 224/230 extreme cam, 1. the icm GROUNDS the coil each time it's supposed to fire. Oct 1, 2008 · bad distributor, bad spark plus and cables, bad fuel pump,small leak on the water pump. roller rockers, 58mm TB, ported intake, ProCharger 600B 15psi for now, MSD Opti spark,coil, 6AL, Boost controller, Pace headers not on yet, 3000 stall, 3. The car has been converted to OBD1. Jun 15, 2012 · If you have no voltage on A & D of icm connector, there's no way your going to have spark. Sep 2, 2020 · The LT1 engine in displacements of 265 and 350 cubic inches was employed in a number of General Motors vehicles including the 1992-’96 Corvette, 1993-’97 Camaro and Firebird, 1994-’96 Chevy Caprice and Impala, Buick Roadmaster, and the beasty Cadillac Fleetwood luxury rides. You would have been well served by getting a 95 z28, rather than the 96. Pulled one spark plug to watch it spark and it sparks at fairly even intervals, but it was wet Sep 18, 2011 · Saw this thread and thought I'd tack my problem on to it. i assumed it was the opti-spark, it was producing a 1371 code and running poorly. Just put an msd optispark on last year when I bought the car. with the alldata subscription check that this is a 1996 , that this engine and the other components have not been changed from OEM. The negative terminal was not tightened sufficiently and in the process of cranking the engine it melted/damaged the negative wire. 00 and mine was burnt nearly through. I got no spark and no injector pulse. can smell gas from tail pipe 3. Dec 19, 2008 · C4 Tech/Performance - 96 lt1 cranks, won't start - This has happened one time before. So I`m thinking it is either the harness from the PCM to the opti-spark,or the opti Oct 21, 2012 · 1. May 18, 2008 · On my 96 LT1 before the rebuild i had put some autolite extreme performance iridium plugs in there and the car ran good, but lately i have been seeing a lot of people running ngk v power copper plugs. I have less than 2000 miles on it! surfed the net found some old forums talking about loctiteing rotor screws is th Mar 12, 2014 · No shocking yourself this way either. shbox. Check the spark and get back to us. About a month ago, the harmonic balancer went out. i bought this car recently and it ran when i bought it but with issues. Pulled one spark plug to watch it spark and it sparks at fairly even intervals, but it was wet Aug 5, 2011 · Vehicle is 96 camaro z28. Jump to Latest 21 - 40 of 43 Posts. 4 years and 4kmi on my MSD optispark. 8. this controls spark and fuel. I have ran some test and with the key on. Dec 21, 2016 · The EFI Connection 58x is a universal kit of sorts for the LT1, which will allow you to convert any Gen II to a Gen IV ECM with individual coils, electronic throttle body, Flex Fuel capability Aug 28, 2009 · Hello all. I bought the car not running. But if its in the wrong position it will still spark, just the timing will be off. Is there 12 volts. 2. Took it back to the previous shop and demanded a new and original AC Delco fuel pump. Roger Mabry · Registered. 6 mag. May 25, 2023 · C4 Tech/Performance - 1996 LT1 Crank no start - Hello everyone I have a crank no start on my 1996 LT1. com he has opti and coil testing tests on his site. checked all fuses (passenger side, and 2 in engine compartment) 8a. Joined Nov 26, 2008 · 271 Posts #21 · Apr 17, 2015 Aug 27, 2020 · Heres my story i got a 1996 fleetwood with a stock lt1 it ran fine until i noticed the temp light came on so let it cool down and next day i tryed to start it, it cranked but wouldt come on. It doesn't start, seems like I just needed to hold it for a second longer. Cranks, has Fuel pressure, seeing spark. Use FSM book 2 6E3-C4-1 - Chart C-4. The vehicle had been running perfectly until the battery terminals where removed for cleaning. i replaced the optispark and the car still ran poorly, now i have NO spark and the car wont start at all. Hope that's it and not your opti! Apr 17, 2015 · 96 camaro LT1 NO SPARK. Fuel pressure seems to test fine, 45-ish lbs when cranking/FP running, 35-ish when powered off and remains steady. Apr 14, 2015 · so where do i start. The computer for 94 & 96 are completely different. Ported stock intake w/58mm TB, 4bolt, 4340 SCAT RA/H-Beams/pistons, AFR195 Comp 58cc, Feb 21, 2010 · Pulled the coil wire and no spark. They put the OEM pump, replace the spark plugs and cables, replaced the distributor and water pump. I've replaced the opti spark, ICM, ignition coil, the CPS and now just had a new PCM installed. If good disconnect icm connector and check the solid pink wire at B of coil for 12 volts with ignition on. Battery is well charged and there is gas in the car.

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