Help me understand please. 1989 Wrangler, 4.2, 5 spd. I swapped out the old Carter and installed a Motorcraft carb. Not sure what model MC carb it is but it does not have a choke assembly.
Problem is that it starts up and idles at about 750 RPM till it warms up then idle increases to about 1100 RPM.
I did not do the Nutter but have deleted all the smog related components.
Will the ECM still affect the idle?