P1491 Diagnostic Trouble Code Discussion for October 2008
EVAP Vacuum Cut Valve/Bypass Circuit Malfunction
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| Help Request | Posted | |
| 2001 Nissan Pathfinder LE 3.5L Poor engine power VIN: JN8DR09Y01 P1491: EVAP Vacuum Cut Valve/Bypass Circuit Malfunction. This vehicle has been a challenge for us. Complaint is poor power on accelleration (will cruise at 120 - 130 kmph but is a slug getting there). Will list the tests performed. Before we start we did try a new oem MAF sensor after the basic tests were performed ... |
October 20, 2008 |
