check engine light
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Diesel Bomber
iTrader: (1)
Check the relay under the hood "Fuel pump Relay" Drivers side
When this relay is missing or broken the VP44 doesn't energize nor pump fuel. It allows you to do the cranking test. But it also sets a P1689 and CEL light. So for all of you that have a P1689 error code present check your fuel pump relay first by trading with another relay!
When this relay is missing or broken the VP44 doesn't energize nor pump fuel. It allows you to do the cranking test. But it also sets a P1689 and CEL light. So for all of you that have a P1689 error code present check your fuel pump relay first by trading with another relay!
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burndiesel
24 Valve 2nd Gen Dodge Cummins 98.5-02
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02-07-2023 01:15 AM