Porsche951redt

And i wish i was talking about that from a finincial stand-point. Unfortunately, i am not, my AFR is waaay to high and i get very bad exhaust fumes. Everything in my motor is stock except for a slightly bigger turbo. How can i lower my AFR so that my car does not run so rich? MAF sensor maybe?

J Chen

More details please. What is your set-up ?

PTskater944

Lowering your AFR will make it more rich. For example, a 12:1 AFR is more rich than a 14:1. So if your number is too high, it means you're running way too lean, which is a lot worse than running rich because of detonation.

Porsche951redt

That was my mistake i ment to put to low. I have a totaly stock set-up on my car except for a t-76/6 rebuilt turbo with a slightly bigger rotor inside.