Idle Problem Solved!

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Apr 17, 2007 | 06:08 PM

williammackean

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St. Jude Donor '07

Idle Problem Solved!

http://forums.corvetteforum.com/show...=idle+problems

and

http://forums.corvetteforum.com/show...=idle+problems

My '85 4+3 suddenly stopped idling properly. After trying everything I could think of in the MAF circuit (MAF, ECM, MAF BurnOff Module, Ohming every lead, etc) it boiled down to this:

Loose connector! :o

Apparently, the female end of the connector would slide into the connector instead of over the pins in the MAF. Recrimped and rescanned and it's all better.

So, I have a perfectly good ECM, MAF and BurnOff Module on my shelf. Not bad parts to have as spares!

Apr 17, 2007 | 06:28 PM

Road Agent

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Apr 17, 2007 | 07:42 PM

AGENT 86

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From: Summerland B.C. Canada

Dooh !!

Apr 17, 2007 | 10:47 PM

williammackean

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St. Jude Donor '07

I had no idea that the ports could move. I am a bit skeptical myself that this is the underlying cause officially, but this solution does address the symptoms...

I threw a code on a drive. 33 & 34. Felt a surge then no power, like limp mode. The 'head idiot light' came on and it was pointed at me.

I'll know more when I can drive it on a good, long trip. I'll be heading to Mankato this weekend, ~ 180 round trip.

Apr 18, 2007 | 08:12 AM

jimmers

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From: Winnipeg Manitoba, Canada

Glad you got it working perfect again!

Apr 18, 2007 | 08:20 AM

jmrl98

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From: Hazel Park MI

William, was the burnoff module expensive? (like $100s). It looks to be a semi-pita to change in our cars if ya had to.........

Apr 18, 2007 | 08:39 AM

onedef92

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From: Fort Knox, KY

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The devil lives in the details...

Apr 18, 2007 | 05:47 PM

williammackean

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St. Jude Donor '07

Quote:

Originally Posted by jmrl98

William, was the burnoff module expensive? (like $100s). It looks to be a semi-pita to change in our cars if ya had to.........

I scored one for a couple honeys. Used from a working car that was parted. The new and discontinued models go for $700 or better. I did not replace the Module or ECM, yet, but that was next on the list if everything else checked out. So, I have cheap spare parts on the shelf.

Quote:

Originally Posted by onedef92

The devil lives in the details...

Naw. The Devil moved out in Dec/March and lives in Maple Grove, MN. Weren't you following my saga in OT?