Running Lean
 

I bought this car with some modification to it and it's running lean. The Car Came with a bigger turbo and a ECU Chip as well as a nice borla exhaust. Could it be that i need cooler plugs?

is there a specific code it is throwing.... what motor/program/turbo?

does it have a maf? is it coded for no maf? we need more info than running lean


upgraded fueling? injectors/pump?

Yup, need more info!

josh

i ment to say rich instead of lean sorry guys but the car's not kicking backm any codes. its really odd.

the cars o2 sensor is going on it could that be a cause?

the guy who had the car before me had brought it to a tuner i'm not sure if the car still has the OEM system

How do you know it's running rich if there are no codes?

Shotgun diagnosis: MAF

my mechanic said it was and u can smell it. also, i have a diagnostic tool that shows me my engines parameters and it shows that.

Where would the MAF be on my car. there is a sensor in the airbox would that be it?

MAF is in the airbox.

If your car is running rich, you'll have a MIL or a code. What are your fuel trims like? What chip is it?