ARTIC_Z

ok friday my car started messing up. i was driving and it started shaking and spuddering like it was running out of gas. so i changed the filter and it was full of black goo so i was like ok it was pluged. put the new one up and it ran ok then later that night i heard something so i rolled down the window and it was backfiring they wernt real loaud but it did it for along time. it did it about every 3 secs. and idle is really rough. so im guessing its the opti? then today on my way to the tire shop to get a new tire b/c my new bfg drag got a nial in it it was runnin bad. then when i left to go to work it ran fine. so it is doing every once in awile. so is it the opti? thanks

ARTIC_Z

anyone. i just want to know some ideas before it goes in the shop.thanks

DrewHMS97SS

have you checked the condition of your plug wires? any codes?

ARTIC_Z

no codes present to what it is doing. it has had the opti code before. i checked the wires b/c when i got the headers they kept gettin fried but they looked fine. im gona scan it tonight. and see if it shows what one isnt firing. its going to a camaro shop friday in san fernando here in cali to get looked at. b/c no one here knows much about the lt1's.

1_bad t/a

a friend of mine is having the same problem. His shows that the maf is out, but we swapped didn't make a difference.

Myxtreme1

The only way I really figured out my opti was bad was to remove it and take it apart. Not a very good suggestion but I just wanted to take the car apart and get familiar with it and got lucky. Almost sounds like a clogged injector but I have also heard of that being confused for a bad opti-spark. How many miles are on the ignition system? You might also need to drain the tank if there was goo in the filter. I just changed my filter and noticed a big difference.