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FIX IT MAN, Master Technician
Category: GMC
Satisfied Customers: 17406
Experience:  Master Automotive Technician
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Hope someone can shine some light on my issue 2006 sierra

Customer Question

Hi there. Hope someone can shine some light on my issue
2006 sierra 2500 6.6L. Codes P0090 and P0045 Setting.
I'm a Gas engine tech and regret taking this one but now I'm stuck.
So far I've focused on the P0090 and Here's what I know:
The regularor ISNT bad. (replaced it :-()
The PCM ISNT bad (Replaced with new)
The Wiring between pcm and Reg- Perfect.
Ign. 1 volts going into PCM --Bat volts
Reg power supply wire ign. on and test light hooked to good ground----No light
Where to turn? Pcm grounds also OK
Submitted: 2 years ago.
Category: GMC
Customer: replied 2 years ago.
Sorry More info. Desired pressure is 180. actual---180 FPR mpa--8
Customer: replied 2 years ago.
PCM Wasnt New. Was Used
Customer: replied 2 years ago.
One more odd note: Both the ppl/wht wire AND Yel wire to the reg have 3.0v key on and disconnected reg?!
Customer: replied 2 years ago.
Desired pressure is 180. actual---200 sorry again. Noted another oddity: both codes are for circuits in the same pcm wiring row. All 4 of the wires are in the same row of 4
Expert:  FIX IT MAN replied 2 years ago.

Hello, my name is***** for the question. Can you tell me if the truck is running and if it is if there are power issues?

Customer: replied 2 years ago.
i just got solved the issue Thought i'd checked all the ign. 1 wires missed one in the middle of the harness. Tracked it down and found a green section below the bat.
Expert:  FIX IT MAN replied 2 years ago.

I am glad that you found the issue. I am sorry that nobody was able to get to you sooner. If you happen to need any further help or have any other questions please let me know.

Customer: replied 2 years ago.
Not really sure how to close this. You responded after I resolved it. Do I still pay for that?
Expert:  FIX IT MAN replied 2 years ago.

I will opt out of the question. If you do not rate my service then I will not get credit for it and receive payment. You will still be charged your deposit through the site itself but not through me. If you ever need anything else please let me know.

Customer: replied 2 years ago.
will do thanks for getting back though.