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Thread: 1988 Isuzu Trooper, Timing, EST Connector

  1. #1
    Join Date
    Oct 2007

    Default 1988 Isuzu Trooper, Timing, EST Connector


    I need to check the timing on a 1988 Isuzu Trooper, 2.6L, the Haynes manual says to unplug the EST connector, under the center console at the ECM. There are 3 connectors there but are not labeled and the manual does not have an image to indicate which one. Anyone know how to identify the EST Connector?


  2. #2
    Join Date
    Jan 2007


    Hi dj7934,

    As stated in the Haynes manual for your 1988 Trooper (manual #47020), you only need to unplug the EST connector if you have a V6 engine. Your 2.6L is a four-cylinder engine, so you should not have to unplug anything. Your timing spec. is 12-degrees BTDC.

    Thank you for using Haynes manuals!

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