Where is the ECU for the throttle body injection on a 1989 Convertible?

[JensenHealey]

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

[IndyJimW]

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

[JensenHealey]

OK, but how hard is it to actually access the ECU? Does a significant portion of the dash have to come apart?

[IndyJimW]

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