Been lurking for awhile n trouble shooting the **** outta my '86 Iroc Z28 I picked up a few months ago. Can't begin to say thanks to everyone on here for all the wealth of information spent countless hours reading threads. Finally down to replacing the ECM just looking for opinions on whether to go with a Cardone or AC Delco one. Seen some people bashing Cardone ones hate to have issues. Thanks

 

Go with the AC Delco, eBay usually has a nice selection. I found a NOS AC Delco ECM for my car on eBay part# 16198259 which worked great and will work where the 1227165 is present. My buddy actually says Cardone is French for junk parts.

https://www.thirdgen.org/forums/dfi-...98445-ecm.html

https://www.corvetteforum.com/forums...6198259-a.html

 

Awesome sounds good appreciate the info just what I was looking for thanks. Will keep looking around for a good price on an AC Delco unit then 😎

 

I just saw a member post a used ECM if your still looking.

https://www.thirdgen.org/forums/engi...7165-86-a.html

 

Awesome thanks man appreciate the heads up 🤟 Yeah never could find a reman AC Delco ECM new just used ones or Cardone ones. Ordered a new prom chip to start with cause after I pulled it out n looked it up it's for a 305 not the 350 I have!

 

I’d rather a used one than a Cardone. Those proms are not cheap either, when you get that straightened out your car will run much better. There used to be a guy on eBay that had a few proms, fast toys was the sellers name IIRC.

 

If you ordered a custom tune make sure they checked the fan switch type correctly.
Since 86 f body never came with a 350 installing a later tune couple cause the fan to run key on.
if late 88-89 memcal will have vats enabled.