Exhaust leak
#5
Is o2 feedback on? If so the ems should be pulling fuel to match the target afr. Even removing your exhaust, the ems will do SOMETHING to bring your AFR closer to the target number.
My AFR's at idle tend to swing around a lot especially after starting the car or coming to a stop at a light or something.
My AFR's at idle tend to swing around a lot especially after starting the car or coming to a stop at a light or something.
#7
Originally Posted by MBHs2k
Even before the leak your car was running too rich.