1. Welcome to Jeeps.net!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Jeep discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Jeep owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

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
    #1
    JKB98ZJ

    #1
    JKB98ZJ [OP] New Member

    Joined:
    Aug 30, 2023
    Member:
    #8201
    Messages:
    1
    Gender:
    Male
    Vehicle:
    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?
     
    JKB98ZJ, Aug 30, 2023
    #1
Register FREE to Reply!
To Top