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Engine light on, code P0129

 
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Old 29 Apr 2011, 09:05 pm
cannesman's Avatar
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Default Engine light on, code P0129

Wife just pulled up, said engine light was on. Ran code, came up w/P0129, go figure, that code is missing from sticky. Can anyone help?
No worries, checked the posts more closely (my bad) and got enlightened a bit. Thanks.
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Last edited by cannesman; 29 Apr 2011 at 09:11 pm. Reason: wasn't looking hard enough
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Old 29 Apr 2011, 09:57 pm
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Default Re: Engine light on, code P0129

Is the car idling rough? Does your cruise control work? Generally this is a fault that you can pull a lead off the battery and wipe it clean, for a while. Let the battery sit disconnected for 5 minutes, hit the brakes a couple times to bleed off any residual charge on the system, then reconnect and see if it's still throwing the code.

If it's idling rough, and still throwing the code, hate to say it but most likely bad MAP sensor.
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Old 30 Apr 2011, 10:04 am
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Default Re: Engine light on, code P0129

Thanks Chromenut. I'll try the disconnect cable and see if it goes away. I'll let you know how that turns out. Thanks again.
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Old 30 Apr 2011, 11:16 am
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Default Re: Engine light on, code P0129

That seems to have worked. Disconnected negative side for 10 minutes, reconnected and no engine light, woo-hoo. Now I'm wondering though, what caused light to come on in first place, and should I be concerned or just keep an eye on things for now? Thanks again Chromenut.
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Old 30 Apr 2011, 11:59 am
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Default Re: Engine light on, code P0129

Just keep a eye on it. If it happens again, you may want to dig into it deeper.
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Old 30 Apr 2011, 12:06 pm
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Default Re: Engine light on, code P0129

Thanks Hooligan for the input, much appreciated.
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Old 30 Apr 2011, 12:33 pm
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Default Re: Engine light on, code P0129

No prob Bro, that is what we are here for.
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