truck died
Registered User
Joined: May 2007
Posts: 349
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From: Kalispell Montana
P1688= Internal fuel injection pump control failure
P1689=No comunication between ECM and injection pump module
P0237=MAP sensor voltage to low.
Did something come unplugged or get cut?
P1689=No comunication between ECM and injection pump module
P0237=MAP sensor voltage to low.
Did something come unplugged or get cut?
Registered User
Joined: Jul 2003
Posts: 7,129
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From: The Great White North
I assume this is a second gen 24V...??? We need some details about your truck - please fill in your signature including all mods (performance or otherwise).
P1688 Internal Fuel Injection Pump Controller Failure
P1689 No Communication Between ECM & Injection Pump Module
P0237 Turbocharger Boost Sensor A Circuit Low - Look at the Map Sensor
Just by looking at the first 2 codes - you need a new VP-44 Injector Pump.
If you dont have a fuel pressure guage mounted in the cab, you might want to look into it.
P1688 Internal Fuel Injection Pump Controller Failure
P1689 No Communication Between ECM & Injection Pump Module
P0237 Turbocharger Boost Sensor A Circuit Low - Look at the Map Sensor
Just by looking at the first 2 codes - you need a new VP-44 Injector Pump.
If you dont have a fuel pressure guage mounted in the cab, you might want to look into it.
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Registered User
Joined: Mar 2007
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My truck is a 2000 Dodge diesal 2500 4x4. I was driving and took my foot of the accelator and it just died. I have a edge products chip on the truck, but have removed it to make sure the chip didn't fail. Still turns over but will not start.
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