I just bought a C&L cai with predator tuner. I installed their 87 pump gas street tune for I only have exhaust and the cai. I was test driving after installing and at the end of the drive the check engine
light came on. My question is what could it possibly be for. I don't have a scanner to figure ot what he code is for. I was wondering if the car is safe to drive. It does not run rough or anything. Could the o2 sensor be reading faulty because of the tune or is there a problem with the old Maf sensor being in the new cai. Please help. Thanks.