2007 Pontiac G5 Repair Question
I have a 2007 Pontiac g5. My ce just came on and the code is p0174 which is the car is running to lean.i looked for leaks but nothing visible?
174 could be a vacuum leak, low fuel pressure or a bad mass air flow sensor.
How do I check for these possible problems without have to take it to a mechanic
you need a fuel pressure gauge, and a scan tool to monitor the long terms. not really a job for home. at least get a diag to confirm the failure as guesses are expensive and most of the time wrong
Don't know if this will help but when I fill my car up with gas my ce goes off
with the 174, it should not effect it.
so turns out i have a leak at flexpipe infront of my o2 sensor. i was wondering how do i know what kind of cat my car has? or if i could put a aftermarket one on with my oem exhaust? my flexpipe and cat are one assembly. thx