spyhunter6733 Posted September 12 Report Share Posted September 12 I searched around a bit and didnt comw up with an answer... of anyone who upgraded to the 88 89 ecu im thier 87 does everyone swap the ICM as well? Is there any other parts that should be changed with it? I changed it out las t week and on 2 separate days driving it... about 20 mins in to the ride i noticed a nasty smell.. once i shut it down the smell disapates pretty qwik smell it inside the car dont smell it in the engine bay... anyone have a similar experience? Link to comment Share on other sites More sharing options...
tux Posted September 12 Report Share Posted September 12 the ignition module on pre-88 cars is junk Link to comment Share on other sites More sharing options...
spyhunter6733 Posted September 12 Author Report Share Posted September 12 even if they are junk, i will end up getting one sooner then later but could it cause a prob if i switch the ECU and not the ICM? Link to comment Share on other sites More sharing options...
ssblast20 Posted September 12 Report Share Posted September 12 Nope it’s not necessary to change both…any many people do not (some do, but not required at all) Steve 1 Link to comment Share on other sites More sharing options...
spyhunter6733 Posted September 12 Author Report Share Posted September 12 what is the best upgrade? to just get an 88 ICM or is there aftermarket option? Im sure there are many aftermarket options🙃 Link to comment Share on other sites More sharing options...
tux Posted September 13 Report Share Posted September 13 If you don't mind losing knock control, replace it with an msd6a or equivalent type knock box Link to comment Share on other sites More sharing options...
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