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Engine code P1494 ,Jeep what is it,& how to fix?

2003 Jeep liberty 3.7L auto,62,000 mi 4wd. Stock suspension,factory accessories.will need oil change shortly.
asked Mar 9, 2011 by Hunkie (101 points)
Thanks, dealer said same. Thanks again.

1 Answer

P1494 = Evap Leak Detection Pump Pressure Switch Condition

The Engine Control Module (ECM) has detected that leak detection pump switch change after solenoid was energized.

Possible causes:

  • Faulty Leak detection pump defective
  • Leak detection pump defective circuit open or shorted
  • Faulty Solenoid

Start by clearing the code, if the codes comes back you may have to replaced the Leak detection pump. 


answered Mar 9, 2011 by OBDIITech (2,611 points)
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