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P1491 Diagnostic Trouble Code Discussion for November 2014

EVAP Vacuum Cut Valve/Bypass Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1491
Help Request Posted
2002 Dodge Dakota SLT 3.9L MIL Lamp on VIN: 1B7HG48X22
P1491: Cooling Fan Control Relay Circuit Malfunction. truck came in with p1491 found fan to be pulling alot of amps we replaced radiator fan and fan relay with aftermarket parts truck went about 125 miles came back with cel on and same code. tested the fan and wiring and everything tested ok. cleaned grounds for ...
November 05, 2014