C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Anyone have experience w/ Code 34?

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Old Jan 8, 2003 | 03:47 PM
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Default Anyone have experience w/ Code 34?

I'm getting an intermittent Code 34 with two different mass air sensors. One came with the car and is only a few months old, and the other came off my old iroc.. same part numbers and all.

What else could it be? i was thinking of changing the burn-off relay, can anyone tell me exactly where it's located?
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Old Jan 8, 2003 | 03:59 PM
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The MAF Burnoff and Power relays are located behind your battery. If you take the gill panel off to get at the battery you will see what looks like two identical black relays with a single plug in each behind the battery against the firewall near the door jam. :)
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Old Jan 8, 2003 | 04:41 PM
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Default Re: Anyone have experience w/ Code 34? (CarAteMyMoney)

What year is you vette?
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Old Jan 8, 2003 | 04:48 PM
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Default Re: Anyone have experience w/ Code 34? (SupaVette)

'86
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Old Jan 8, 2003 | 07:48 PM
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Default Re: Anyone have experience w/ Code 34? (CarAteMyMoney)

Burn off relays are behind the battery on the firewall. Hope this pic helps.
http://12.250.128.183/tech/comp5.jpg
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Old Jan 8, 2003 | 08:40 PM
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Default Re: Anyone have experience w/ Code 34? (Mike_D)

Thanks for the pic, I had a feeling that was the relay I was looking for.. Could a code 34 be anything else?

p.s. Mike_D how does your car run with those mods?

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Old Jan 9, 2003 | 12:22 AM
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Default Re: Anyone have experience w/ Code 34? (CarAteMyMoney)

She runs very well, don't think the air foil helps much though. Like to do my exhaust next when extra $ comes along. I scanned this ladder ts chart for code 34 for you hope it helps.
http://12.250.128.183/tech/code34.jpg :cheers:
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Old Jan 9, 2003 | 05:34 PM
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Default Re: Anyone have experience w/ Code 34? (Mike_D)

Is Code 34 normally the relay, or the MAF sensor?
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Old Jan 9, 2003 | 06:47 PM
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Default Re: Anyone have experience w/ Code 34? (CarAteMyMoney)

According to the ladder chart it's possible it could be a faulty ecm.
Try going step by step and see what happens. good luck :cheers:
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