[fastcarsca]

Hello there I have an 86 monte carlo ss and I was looking for the ECU but it does not have one should it have one? I have had the car for 2+ years now and it seems to run fine. with this being a carb motor do I really need one and why would the last owner have taken it out. any suggestions would help. thanks Eric

[richard stewart 3rd]

Hi,
Your car should have an ecm, you have a feedback carb or at least that's what it came with new,
I can't remember if the dist is ecm controlled or not.
Rich

[fastcarsca]

thks the carb is a Rochester 650 i believe I cant see any electric hooks on the carb except for the choke should there be if it needs a ecu?

[gezn2]

Originally Posted by fastcarsca

thks the carb is a Rochester 650 i believe I cant see any electric hooks on the carb except for the choke should there be if it needs a ecu?

You got a slightly different mix of emissions stuff in Canada, my experience is with US-spec stuff so YMMV
If it was stock it would probably have a big solenoid parked down in the front of the quadrajet running the mix on your primaries, and those carbs need TLC to run without the ECU.
A stock dizzy will have two spark-modification wires coming out of the body and heading into the firewall, a non-computer HEI is a drop-in and only uses the 12V hot plus a tach wire, if equipped.
I had a Malibu of that era, I just abandoned the ECU in-place, IIRC it's mounted somewhere on the passenger side kick panel or firewall

[blyne3]

ECU should have been under pass dash, most were removed due to they where crap and a normal carb and dis were installed.

[fastcarsca]

thanks for the input ya its a HEI dis,