i bought a 95 camaro 3.4l about a week ago from a towing company for $650, they told me it was misfiring and ran pretty rough. after doing some diag i came to the conclusion that the MAP sensor was bad, replaced and it ran good, had a sputter at idle. i did a tune up and all the spark plugs was black. the back plugs on passanger and driver side was rusty and sort of a pain in the ***, excuse my language, but i got them out and replaced all of them, did wires also. it has a little bit of smoke coming out of the exhaust when i start it up, and when i bought it, it has gas in the oil which was probally from runnning rough with a bad map sensor. the car was probally sitting for a good year because the tow bill was about 800 bucks or so but i knew the owner of the towing company and he hooked me up with a good deal for $650.

any clue why this is happening?
if you need any more info let me know
thanks in advance
-Art

 

I guess if it ran good, but had a sputter at idle, it really wasn't running good. However; after doing all that work, what exactly is the complaint?

 

Lmao, i know i was reading my post thinking that in my head, but basically it doesnt seem right at idle, i dont wanna say a missfire because its not that severe but i could take a video of the sound on my phone and upload it to here, i cant really explain it. or better yet cannot word it. not completely sure what causes the sound though, i checked for exhaust leaks before i posted on here too. sorry i couldnt help you more but im going to record the sound and post it.