by Urtorsen » Thu Feb 19, 2015 1:46 am
So the TPS and the iac valve are all the one.......and .....Well I feel like a fool for not seeing it or trying it sooner......but, I noticed the 'iac on' tab going green, on and off, as the rpm was hunting up and down. So the idle was getting switched off with TPS !! The iac motor would open the valve(throttle plate), in turn the TPS %(&rpm) would increase with it, reach the threshold of 1% and switch the iac control would drop off > valve closes bringing TPS below 1%, idle control would enable again below this 1% and it would keep cycling like that ......revving the engine.
so, I raised the 'TPS threshold for iac enable' from 1% to 10% to try it out (probably can drop it to Id say 5% later when I have more time to play) and the iac works perfectly with dc curve, it's -2f outside and started and idled fine.
Is there a downside to setting the threshold at around 5%????
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Last edited by
Urtorsen on Thu Feb 19, 2015 2:10 am, edited 1 time in total.