POScamaro198

i have a 94 Camaro lt1 will not start backfiring through throttlebody it has compression,spark and fuel I replaced the ignition controle module,pcm,optispark,bypassed the vats and it acts like the timing is off the next step I was going to do was take the timing chain cover off and see if It jumped timing? ive been having a fit getting this car going any help would be aprieciated

MedicinalCreamDogs

iTrader: (4)

when you replaced the opti did you line up the key spline correctly? that may cause your timing issue

POScamaro198

I ensured it was indexed right it would only slide in one way i replaced it today with the opti wire plug in

bufmatmuslepants

iTrader: (3)

There's almost no way the timing chain jumped, way more likely your plug wires are not on the right cylinders.

MedicinalCreamDogs

iTrader: (4)

I did that once

bufmatmuslepants

iTrader: (3)

Everybody has at one point or another. I bought a truck for $1200 a month ago because a guy replaced the plug wires and put them all 1 off on the distributor and he couldn't get it to run again and thought hed broken the distributor. He had 3 other "mechanics" come look at it and when I got there, rotated all the plugs, and fired it up AFTER we settled on the price, he was PISSED.

POScamaro198

i ensured that that the plug wires were correct more then once im in the process right now of looking at the timing chain it looks like its 180 out