Need help with 10 pcm codes

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Apr 28, 2009 | 08:59 PM

19vette91

Thread Starter

Burning Brakes

Joined: Aug 2002

Posts: 862

Likes: 41

From: Mahwah NJ

Need help with 10 pcm codes

Can anyone give me some Insight on my check engine light codes. My 02 Zo6 is only 300 miles out of winter storage and it just gave out these codes when i went through the automatic code mode.
10 PCM
2 codes P0171 H and PO174 H C
Any help guys as to what I need to do to correct those codes? I know that H means a past problem that has been fixed, but why the H & C on PO174?
Thanks for any help here!!!

Apr 28, 2009 | 09:19 PM

c5streak

Burning Brakes

Joined: Dec 2003

Posts: 1,066

Likes: 9

From: Eddy Texas

Those are lean codes for bank 1&2. I would stat with the easy stuff, like a vacuum leak or a loose clamp on your air intake. Reset them, drive it and see what comes back.

Apr 29, 2009 | 09:00 PM

19vette91

Thread Starter

Burning Brakes

Joined: Aug 2002

Posts: 862

Likes: 41

From: Mahwah NJ

Quote:

Originally Posted by c5streak

Those are lean codes for bank 1&2. I would stat with the easy stuff, like a vacuum leak or a loose clamp on your air intake. Reset them, drive it and see what comes back.

Ok I'll try that and see what happens.
Thanks

Apr 29, 2009 | 11:25 PM

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Clear ALL of them and see what ones come back. Then list them.

BC

Apr 30, 2009 | 09:42 AM

19vette91

Thread Starter

Burning Brakes

Joined: Aug 2002

Posts: 862

Likes: 41

From: Mahwah NJ

Quote:

Originally Posted by Bill Curlee

Clear ALL of them and see what ones come back. Then list them.

BC

I did clear all of them and thats the 2 codes that came back on after driving 180 miles.

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