Today I was recing my buddys 07 Corolla and when we stoped we were talkin and he said that I was blowing black smoke. I hope it isnt the damn rings again[:@]But I was told when your rings are goin out you will blow white smoke.

 

your car can be running rich, meaning its dumping to much fuel,its like a torch when theres no oxygen theres black smoke or soot, so u might need a new o2 sensor or something.

Black Smoke: Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely.

 

So it isnt my rings? I need an o2 sensor? If it's an o2 sensor which one or both?

 

have u ever change your o2 sensor? ill give that a try, cause the o2 sensors tell the ECU how much air and gass is coming out so if u think about it, if its not reading right the ecu will not know how its doing, try doing both of them so u can get the best out of it, but if any one else has any idea throw them out.

 

I never changed them,but thanks a million . Just glad it isn't my rings.

 

yea im asuming pretty close if it was the ring it will be blue, and thats burning oil.

 

take your car to autozone. if its a 95 Neon tell them its a 96 or or 97 lol. but they can tell u if its the upsteam/bank 1 (the first o2 sensor) or the downstream/bank 2 (after the Cat.)

 

Iam just goin to buy both of them to save the hassle.How much do they cost roughly?