JensenHealey Posted October 27, 2021 Report Share Posted October 27, 2021 I have a need to get to the ECU that controls the throttle body fuel injection on my 1989 convertible Avanti so I can figure out the exact part number of the ECU. Can anyone clue me in as to where it is located and how to get to it? Thanks Link to comment Share on other sites More sharing options...
IndyJimW Posted October 27, 2021 Report Share Posted October 27, 2021 (edited) My 87 is located on the passenger side behind the dash pad. Cardone 77-8330 for 5.0L, 77-8746 for 5.7L. Prom chips have to be transferred from old ECU. GM # for VIN E 5.0L 88999158, VIN Y 5.0L 88999156. Good luck all, Jim Wood Edited October 27, 2021 by IndyJimW Link to comment Share on other sites More sharing options...
JensenHealey Posted October 27, 2021 Author Report Share Posted October 27, 2021 OK, but how hard is it to actually access the ECU? Does a significant portion of the dash have to come apart? Link to comment Share on other sites More sharing options...
IndyJimW Posted October 27, 2021 Report Share Posted October 27, 2021 None of the dash has to come apart, it’s mounted behind the dash to the support with two screws. Good luck all, Jim Wood Link to comment Share on other sites More sharing options...
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