Aiight as i said in another post my car runs good when its cold, but after it warms up it runs like shiet. It starts to idle low and throws out smoke from the tail pipes when it gets hot after like 20-30 min of driving. Some times i need to keep my foot on the gas or it will turn off. Call It.

 

what color smoke is it?

 

I beleive its black or just dark

 

you replace all your regular maintenence things?

 

I changed oil, transmission fluid, filters, spark plugs about 1,000 miles ago. i just did the o2 sensor.

It Just throws out smog. Like when i take off fast like from my house i come back and see that my car has thrown thick smog on my cuzins front end. i pick it with my finger and its all black, also my tail pipes are black from the inside. do i need to replace my full exuast in cluding cat and all? The last owner had it installed this past jan, but i guess its a cheap brand or i dont know, but i love how it sounds. Need help!

 

For some reason you are running way to rich,don't think you'll need to change exhaust. However it could be restricted,look to see if you have any bends or crushed pipes anywhere. Your cat could be pluged-up,have a friend rev the motor and watch to see if the cat swells up alot,this will give you and idea if the cat is pluged.

 

check your timing and cut off your cat to see if its clear

 

Damn how do i check my timings? do i take it to a shop?

 

If you don't have a timing light, you take it to a shop. No way you can fudge it.

 

after you get your timing adjusted, regardless of if it was the problem cut off the cat, the unburned fuel probalbly cooked it, and just consider yourself lucky it didnt warp your headers like mine causing power loss and unwanted bad noise.

 

how many miles are on the motor?
are you sure ur not burning oil??

 

It says 49,000 on it and the last owner told me it was on a rebuilt engine. so i believe i got 149,000 damn thats a lot

 

does the oil level drop after a while? sound like a case of worn rings..so you get alot of blow by when you step on it.

 

My Oil Gage Is Broken, So Its always down. :-(

 

no I mean your dipstick, do you have to add oil once in a while? because your probably burinig it.