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chris989 · 01-13-2012, 07:59 PM

big ol burb,

I have been on the hunt for the answer,,, and I have some resolution.

For now i have the IAC unplugged. I jumped terminals A&B, turn the key on for 10 seconds (drives the IAC pin closed), unplug the IAC, then turn off the key, unjump A&B.

My truck now has normal throttle response. The IAC slows RPM return to improve emissions when there is a vacuum spike (letting off the gas fast).

I am currently looking into a manual way to energize the IAC (fast idle) via a switch, Just like some of my older Diesel work trucks.

I also am looking into editing my bin files for the computer. I downloaded tunerproRT and can now log my data real time.
There are a host of parameters that control the idle (in gear, vacuum, temp, etc) that are available to edit.

I am not a pro at it yet but i will figure it out, For now with the IAC disconnected it idles at 800 park, 525 in gear.

Jon

01-13-2012, 07:59 PM	#10
chris989 Registered User Join Date: Dec 2011 Location: Boise, Idaho Posts: 555	Re: TBI slow to return to idle big ol burb, I have been on the hunt for the answer,,, and I have some resolution. For now i have the IAC unplugged. I jumped terminals A&B, turn the key on for 10 seconds (drives the IAC pin closed), unplug the IAC, then turn off the key, unjump A&B. My truck now has normal throttle response. The IAC slows RPM return to improve emissions when there is a vacuum spike (letting off the gas fast). I am currently looking into a manual way to energize the IAC (fast idle) via a switch, Just like some of my older Diesel work trucks. I also am looking into editing my bin files for the computer. I downloaded tunerproRT and can now log my data real time. There are a host of parameters that control the idle (in gear, vacuum, temp, etc) that are available to edit. I am not a pro at it yet but i will figure it out, For now with the IAC disconnected it idles at 800 park, 525 in gear. Jon