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HELP. Gotta bring my buddies truck to the dealer with CEL.

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Old May 5, 2008 | 07:32 PM
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HELP. Gotta bring my buddies truck to the dealer with CEL.

P2509 Powerdown Data Lost Error combined with a U1--- can't remember the rest.

The check engine light is on and thats all there is.

Whats going on?

The truck has been stumbling a bit.
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Old May 5, 2008 | 08:51 PM
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Come on - I'm going to bed and need to know if this was caused by any programming.

He says he never had a programmer on it.
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