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I HAVE A 95 T/A LT1.... WAS RUNNING GOOD TILL I DECIDED TO GET MSD COIL.... INSTALLED IT ALSO GOT BRAND NEW ACCEL OPTISPARK AND PUT IT RIGHT ON...... CAR FIREUP FINE AND I TOOK IT OUT FOR A CRUISE, WAS ON THE FREEWAY GOING 70 CRUISE CONTROL... WHEN SUDDENLY CAR TURN OFF AND NEVER STARTED AGAIN TOWED IT HOME..... GOT NEW SPARK PLUG WIRES, SPARK PLUGS, ICM, AND OPTI PIG TAIL... STILL NO LUCK..... TOOK A MECHANIC HE SAID IT WAS OUT OF TIME AND THE MSD NEW COIL WAS BAD....... GOT NEW COI AND STARTED UP FIN.... DROVE AGAING FOR ABOUT 20 MINUTES THE SAME STORY IT SUDDENLY DIES AND NO START...... I CHECKED FUEL PRESSURE AND SPARK AND ITS ALL FINE.... CAR MAKES LITTLE EXPLOSIONS WHEN I TRY TO START BUT WONT FIRE UP.... ALREADY WASTED LIKE $2000 DOLLARS IN MECANICS,PARTS, AND TOW TRUCKS..... [PLEASE GUYS HELP ME I GOT NO MORE IDEAS
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Probably that accel opti. I'd have went with a Delphi unit myself. I can't ever bring myself to trust msd or whoever else throws their hand into making an optispark. If the mechanic says its out of timing, and if he's correct, than that alone tells you its the opti, since the timing is computer controlled and is sent to the pcm by the opti itself.
Go with tried and true imo, get a gm/delphi unit.
RED 95 Trans Am M6:3.73, TBB, Moroso CAI, 160 stat, 30# SVO injectors, madz28 PCM tune, Pacesetter LT's w/ ORY and 3" cutout, Hooker CB, Taylor Spiro-pro 8mm wires
i did put the original part back on .. still same..... when car cranks oil pressure goes up////// also the security light stays on for a few seconds while cranking the car
The "SECURITY" light should come on for a five seconds when you turn the key to "run", and then go out and stay off. From the Owner's Manual:
"If the engine does not start, and the SECURITY light stays on when you try to start the vehicle, the key may be dirty or wet."
Are you sure your mechanic used the correct scan tool - the 95 is confusing to many, because it has an OBD-I PCM and a 16-pin OBD-II style ALDL connector? There are several critical codes that affect starting but do not turn on the SES light.
94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400 + GearVendors OD / Strange 12-bolt - 4.11's / 300-shot N2O / Spohn suspension / 6-pt roll bar with integrated SFC's / AutoMeter instrumentation / MoTeC M48Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.
..... i check all my optispoark wires to pcm and found everything perfect.... also checked my coil and i am getting spark and fuel... also check the vats system...... all good but car still just cranks and cranks but wont fire up... new icm again.... i am so lost.... what next?