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Trouble Understanding Codes

Posted: Sat Feb 03, 2018 8:19 pm
by sardillim
Trouble Understanding Codes
2012 Caprice 3.6 v-6
I have been getting the P0174 code, I have changed all 4 o2 sensors and the cam sensors ( previous code for the right bank intake sensor) I have also checked for vacuum leaks and everything seems ok. Currently and I am stuck, Dose anybody have any ideas ?

Re: Trouble Understanding Codes

Posted: Sun Feb 04, 2018 12:15 am
by smwalker
Any Aftermarket stuff on the Car?

Since it is only bank 2 I would say MAF is not the culprit but would probably give it a good cleaning anyway.

May have to do a smoke check to see if any intake seals are bad.

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Re: Trouble Understanding Codes

Posted: Mon Feb 15, 2021 9:10 pm
by Capeasy
You know I was just looking up those exact codes P0174, P0171. The stupid rubber boot or hose from my CAI keeps sliding off of the throttle body because it's some kind of weird Chinese rubber and when it does I get the check engine light on. So I have to pull over get my screwdriver out and slip that boot back on. I just got around to plugging in my Code reader to clear those two codes, I figured it's getting an obscured air reading when the MAS is taken out of the equation. Lol . It had me worried to because I seen "Lean" and I had just switched to E85.
Thanks