My SUV listed above starts and runs great but backfires under a load. Sometimes it will hardily drive, other times I am able to drive it fine. We recently changed the fuel pump. The MAF reads 6.3 g/s at idle then goes upward 45-50 when accelerating. All voltage is good on O2 sensors. I'll have to check timing marks, cap and rotor. Any suggestions or ideas?
have the same problem?
Monday, July 17th, 2023 AT 3:16 PM