Hot start throttle hang
02-12-2018, 02:21 PM
#1
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Hot start throttle hang
hi guys. Whenever I hot start my car, the throttle always seems to hang for 1 sec when shifting. It wont do it if the car is warmed up from a cold start. Ideas?
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03-20-2018, 12:58 PM
#4
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Update. That helped with inital startup. But when I am driving the car there is still throttle hang after a hot start. This started happening after the skunk 2 tb install. And yes, I already re-drilled the throttle spring hole. 
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03-20-2018, 03:03 PM
#5
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Okay, maybe don't drill it again. Ensure your throttle cable is not kinky and that there is nothing in the way of wiring harnesses or insulation interfering with the cable inside the firewall.
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03-22-2018, 04:55 PM
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$20 says a datalog will show it's not actually in closed-loop idle mode when it hangs. The valve hangs open because the RPM is outside the bounds where CL idle can activate, and so it hangs there forever. Blip the throttle and the revs will drop on the way down, CL will activate, and it will come down to a normal idle.
Reduce the max idle DC% or reduce the hot idle initial duty cycle.
Reduce the max idle DC% or reduce the hot idle initial duty cycle.
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03-23-2018, 12:12 AM
#12
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It will come down to idle rpm every time. Its just when shifting, the RPMs dont drop when clutch is depressed. it hangs for .5-1 sec before dropping down. Its not an idle issue.
Last edited by icantlearn; 04-26-2018 at 12:36 AM.
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