more CEL! p0172
#1
more CEL! p0172
As stated, I'm showing p0172, which is apparently a rich fuel code. Any suggestions? MAF? o2? For what it's worth, car is running very well and getting excellent MPG's. 147k
Thanks
Thanks
#2
Been experiencing this for a while?
I did have this happen to me once, if I am remembering right, it was just after the fuel truck had left, and I had also added an octane booster to see what that would do. After I burned through that tank of fuel, I cleared the CEL, and it never came back. But I tried to clear a couple times during, and it would come back.
I did have this happen to me once, if I am remembering right, it was just after the fuel truck had left, and I had also added an octane booster to see what that would do. After I burned through that tank of fuel, I cleared the CEL, and it never came back. But I tried to clear a couple times during, and it would come back.
#4
no, this is a new code. Been chasing a couple others that are apparently gone. Right before my next oil change, I think I'm going to dump a can of SeaFoam via the booster vaccuum line or straight into the oil. Says you can do either way or in the fuel tank.
#5
I would start by checking the fuel psi. High fuel psi could be a stuck regular if psi drops with the engine off could be a leaking lnjector. If fuel system checks out ok then it will probably be a sensor problem. To get into that you would need a scan tool.
#8
You may have simply put in some "bad gas" as MeijerLPO suggested. Never had it happen on our HHR but I had that code come up on the Acura once, come back once after being cleared and then go out after driving it a couple of days. That's been almost 6 months. Hasn't been back on since.
#9
I've never used it in the oil, but have used it as a top engine cleaner via the brake booster (not on the HHR though). And several times in the tank (about once a year).