Dual quad idle settings
Hi everyone. I just finished installing 2x4 Go EFI to my '63 Imperial with 413 rb. Seems nice so far but I have problems setting the idle since there are no instructions for dual quad setup from Fitech.
What I have done so far is I have adjusted IAC steps with the single unit instructions between 5-10. First I adjusted only the primary unit and did not adjust slave unit. It ran like crap. Next I tried to adjust slave unit also by turning the IAC screw same amount together with primary unit. I got IAC steps between 5-10 and it ran much nicely. However, after I take a drive IAC steps go back to 0-5 and it tries to stall.
Any advice how the idle should be adjusted right in this dual quad setup?
Nice Build.
First verify the secondaries on both throttle bodies are in adjustment to the primary blades.
I have seen some back the idle screw out on the rear throttle body, get the throttle bodies in sync, then just use the front idle screw to adjust both. 15-20 steps are fine for dual setup. Make sure it is at operating when adjusting.
Any other adjustments may require setting steps again.