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Discussion Starter · #1 ·
I have a 01 2500 xtra cab 5.9 automatic diesel. Was driving down the road and lost all power, pedal did nothing and very rough idle. Had it towed home and hooked up scanner and had codes p0253, p0251, p0252, p1688. Could all these be because my vp44 and lift pump are bad?
Thanks for any help.
Ray
 

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P0251 Fuel Inj. Pump Mech. Failure Fuel Valve Feedback Circuit.
Problem sensed with fuel circuit internal to fuel injection pump.

P0253 Fuel Injection Pump Fuel Valve Open Circuit.
Problem sensed with fuel circuit internal to fuel injection
pump.

P1688 Internal Fuel Injection Pump Controller Failure.
Internal problem within the fuel injection pump.
Low power, engine derated, or engine stops.

Sorry pal, your injector pump is hurt.
 

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Mopar1973Man.Com
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Being all those are electronic codeso f the PSG of the VP44 I would test the alternator and see if its creating more than 0.1 Volts AC which might be killing other things like the ECM too.

Are you Automatic? Do you have a noise filter hooked up to the PCM?
 
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