Mechanics

I HAVE A . 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?

2007 Pontiac G5 • 140,000 miles

When I'm giving it the gas I can hear a rattling noise from my exhaust up from somewhere
Avatar
Wayne1988
September 23, 2012.




174 could be a vacuum leak, low fuel pressure or a bad mass air flow sensor.

Roy

ASEMaster6371
Sep 23, 2012.
How do I check for these possible problems without have to take it to a mechanic

Tiny
Wayne1988
Sep 23, 2012.
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

Roy

ASEMaster6371
Sep 23, 2012.
Don't know if this will help but when I fill my car up with gas my ce goes off
AD

Tiny
Wayne1988
Sep 23, 2012.
With the 174, it should not effect it.

Roy

ASEMaster6371
Sep 23, 2012.
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

Tiny
Wayne1988
Sep 25, 2012.

AD