ok i have a 1990 camaro rs with the 3.1 v6 it was running really really rough and this is what i have changed- alternator,plugwires,plugs,distributer cap,rotor,knock sensor,oil pressure switch,and vacuum lines. the car runs a little bit better now but it still feels like it doesnt have any power so i brought it to a garage that a freind of mine works at and all they came up with is some module in the distributer thats being changed today but im not to optimistic about that. now i need this car on the road asap as im getting married in june and was hopeing to use it as a getaway car what would that modular be? and what else could be causing the problem?

 

Would you happen to have some old gasoline in the fuel tank?

 

Nah i ran it dry about a week ago and put in 5 gallons of fresh stuff.

 

Do you think it could be a clogged Catylitic converter? i dont think that has been changed in a long time if its been changed at all, and it looks kinda banged up.

 

I see you didn't mention if you have replaced the coil? It's important for that spark. I would double check timing to make sure it is correct, plug wires and firing order. I know I have messed them up before.

 

Yes that very well could be clogged and restricting the exhaust of the engine. Might want to check the O2 sensor while your at it, because the ecm uses info from the O2 sensor to adjust for fuel delivery, along with other stuff.

 

hmmmm i didnt think about the coil but i was thinking of replaceing it with a msd coil anyways i tried to check the o2 sensor myself but i couldnt even get it off. i will talk to the mechanic after work and have him check the cat converter. sucks that i live in ny cuz in maine i would have just stuck a pipe threw it lol

 

ok we changed the coil and now it runs like a champ i cant remember ever having a car with a v6 that had so much power and ive owned alot of cars haha. but the paint prep starts this weekend gotta go all the way down to the metal because the old paint was cheap and is chipping off im going to be trying to do the paint job with rustoleum i will be posting pictures in an alternate thread of the entire process i use. thanks for the help guys