So I was driving like a normal day turned car off went to start again and it wouldn’t idle. The cars start than stall immediately. can keep car running with gas pedal pushed, it also runs perfect driving down the road and after driving it for about 2 mins it will begin to idle but high around 2k or it fluctuates and sometimes still stalls. I have tried tps and it is set through Neptune so all is well there. if you need more info just let me know but I’m out of ideas.

 

its most likely your iacv plug is damaged like a pinched wire or your tps is of calibration check voltage on the tps and check that plug its behind your intake manifold if its a b series at least.

 

Have you checked your vacum lines? the high idle could be caused by that

 

ok the tps was calibrated in the ecu with neptune so thats not the issue all vacuum lines are fine. as for the iacv with the key on if i unplug it plug it in i can hear it click like its opening and closing. i have spare iacv that i know is good i'll change that to see but dont see that as my problem any more ideas....

 

were you able to fix the issue? I am having a similar issue. I am pretty sure mine is electrical.

 

it was his iacv

 

mine was the same.