[Diy_efi] High idle after highway driving

[Mike]

By IAC I guess u mean Idle Air Adjust,

Can you tell if the unit is jamming due to high changes or anything else,
perhaps less vibration at highway, round town its shaking more as engine
revs up and down... Is the pwm signal to it different, does the O2 feedback
loop stay on when idle on TPS, tried tapping the IAC to see if it shifts up or down
esp after highway cycle etc etc,
regards
mike

At 02:47 AM 1/26/2011, Ashley Wagner wrote:
>My 7747 does not want to idle down below 1000 rpm after I have taken  
>it out on the Highway. The IAC stays out at a high count and does not  
>readjust. It does not do this when I drive it around town, any  
>suggestions???
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