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Apr 22, 2010 | 10:22 PM

E.jones

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Racer

Joined: Nov 2008

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From: Leesburg GA

Engine Codes

Codes=P0068 HC, P0102HC Need help what does these codes mean?

Apr 22, 2010 | 10:35 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,456

Likes: 1,165

From: Dyer, IN

Quote:

Originally Posted by E.jones

Codes=P0068 HC, P0102HC Need help what does these codes mean?

P0068 = A disparity between the MAF and calculated speed density.

P0102 = MAF malfunction

Any recent work on the MAF or air intake?

Apr 22, 2010 | 10:45 PM

E.jones

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Racer

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From: Leesburg GA

Yes, just got car back today after 402 build. The DIC is showing reduced power. Any advice.

Apr 22, 2010 | 10:49 PM

lucky131969

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From: Dyer, IN

Quote:

Originally Posted by E.jones

Yes, just got car back today after 402 build. The DIC is showing reduced power. Any advice.

Yep. Inspect the wiring to the MAF, security of the MAF, and check all air intake connections for security, no splits, etc. Also check the condition of the throttle position sensor and wiring.

Apr 22, 2010 | 10:54 PM

E.jones

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Racer

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From: Leesburg GA

Thanks, is it gonna be ok to drive back to the shop (10 miles) like this.

Apr 22, 2010 | 11:07 PM

lucky131969

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From: Dyer, IN

Quote:

Originally Posted by E.jones

Thanks, is it gonna be ok to drive back to the shop (10 miles) like this.

I would suspect yes, but I would still check under the hood for anything obvious.

Apr 22, 2010 | 11:49 PM

E.jones

Thread Starter

Racer

Joined: Nov 2008

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From: Leesburg GA

I am about to check now..

Apr 23, 2010 | 07:35 AM

E.jones

Thread Starter

Racer

Joined: Nov 2008

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From: Leesburg GA

Didn't find anything..

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Apr 24, 2010 | 11:33 AM

lucky131969

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From: Dyer, IN

So what happened?

Feb 14, 2012 | 08:45 PM

#10

C5 Pete

AMP Racing

Joined: Aug 2006

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From: Washington TWP NJ

2023 C5 of the Year Finalist - Modified

2017 C5 of Year Finalist

St. Jude Donor '09-'10-'11-'12

I'm getting the same codes. Bone stock car. 2004.

I've swapped the tps. I've thoroughly inspected for any air leaks. I'm going to swap the MAF with the one from my 01. Perhaps that will do something.

Then I'll open up my repair manuals that I got from Gene Culley at GMPartsHouse.com for a great price...