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98 ZJ 4.0 Leak Detection Pump - PCM/CEI issue

Discussion in 'Grand Cherokee' started by JKB98ZJ, Aug 30, 2023.

  1. Aug 30, 2023 at 6:15 AM

    JKB98ZJ [OP] New Member

    Aug 30, 2023
    98 ZJ 4.0
    Bought a flashed PCM to replace the factory PCM. ZJ running much better but now have check engine light with code P1494 (Leak Detection Pump Pressure Switch failure). The problem is my ZJ didn’t come with a LDP. Is there a way to make the PCM bypass checking for the LDP?
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