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Re: Re: Re: P0420, 0175, 0172 - cleaned MAF, running great, any ideas?
MAP sensor ?? anybody? ideas?
(what a loser ... replying to my own post !) haha !
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Originally Posted by drdd
Okay, my 97 Jimmy W is still getting the running rich codes in both banks.
I've done full tune-up, clean MAF, swapped with an Ebay 2001 MAF, replaced cat converter today. Still get codes.
The only thing I haven't done is replaced O2 sensors. I'm beginning to think I have a injector leak and that it is running rich and the 02 sensors are doing their job. That would explain the codes and the bad cat.
I don't smell gas inside the truck or under the hood. The truck seems to run great. Unfortunately I haven't kept great records of the gas mileage.
Other ideas ? Any ways to check for injector leaking? I think I have Central Sequential Electronic Fuel Injection ... will I need to replace all 6 injectors?
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