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Quit running codes, P-1688, P-1689 Help please

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Jun 30, 2007 | 07:05 PM

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bjpru66

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Quit running codes, P-1688, P-1689 Help please

My 02 diesel Ram quit running last night. Scanned it today and these codes came up. Does anyone know where to start looking for the problem?
Thanks,
Bill

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Jul 1, 2007 | 02:00 AM

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deanj287

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From: tx

RE: Quit running codes, P-1688, P-1689 Help please

[align=center]P1688[/align]
Internal Fuel Injection Pump Controller Failure

[align=center]P1689[/align]
No Communication Between ECM & Injection Pump Module

sounds like a bad fuel pump?

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