LT1-LT4 Modifications 1993-97 Gen II Small Block V8

what does this OBD1 code mean???

Old 04-30-2009, 12:39 PM
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Default what does this OBD1 code mean???

Output Driver Module, EAS circuit. its for my friends car. 94 z28 a4
Old 04-30-2009, 12:44 PM
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Originally Posted by mean_greenZ
Output Driver Module, EAS circuit. its for my friends car. 94 z28 a4
What's the Code number?
Old 04-30-2009, 12:50 PM
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Got this from a search...

P1651 Fan On Relay Control Circuit/Output Driver Module (Quad Driver) 'B' Quickset Fault (Saturn)

Maybe a bad fan relay?
Old 04-30-2009, 01:08 PM
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sorry...its code 29.
Old 04-30-2009, 01:15 PM
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Originally Posted by mean_greenZ
sorry...its code 29.
give me this...DTC 29 - Glow Plug Relay Fault
Old 04-30-2009, 01:21 PM
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hahaha! might be a diesel conversion lol! i have no clue on this. never heard of the code in my life. the car runs great and pulls hard. it beats me.
Old 04-30-2009, 01:26 PM
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Code 29 Secondary air injection circuit

The code is for your AIR system.
Old 04-30-2009, 07:02 PM
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yea i called the chevy place and they told me that. i checked the fuse to AIR pump and thats what it was...blown fuse is all.
Old 04-30-2009, 09:34 PM
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Next time you want to look up a code, use my website for the correct f-body ones. Link in sig.


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