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P1239 Diagnostic Trouble Code Discussion for January 2011

Engine Oil Temperature Too Low

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Trouble Ticket Help Requests for DTC P1239
Help Request Posted
2004 Isuzu Rodeo S 3.5L Hesitation, MIL Lamp on VIN: 4S2CK58Y94
P1239: high fuel system pressure malf. Thanks for any help with this Isuzu, the reduced power and check engine lamp set on a short drive if cleared. All of our scanners only display the low fuel pressure. Alldata has little info on this system. Does anyone have a way to check the high side pressure...
January 20, 2011