Can anyone tell me what this code means? My 99 xj's check engine light came on and that was the code. I'm lost.
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P1494
Definition
Evap leak detection pump pressure switch condition
Explanation
ECM detected the leak detection pump swith did change after solenoid was energized
Probable Cause
1.-Leak detection pump defective
2.-Open or shorted circuit condition
3. Solenoid defective -
P1494-LEAK DETECTION PUMP SW OR MECHANICAL FAULT
start by checking the gas cap (is it tight?) and then check the vacuum lines.
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EDIT: Where is the leak detection pump switch?
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