so, from what i can tell, to test my IACV i just unbolt it and turn the key to "on"? then the sensor should move on it's own to find it's needed position, make clicking noises, etc?
mine doesn't move and the lil' sucker gets hot, so i'm assuming mine is toast.

i decided to test mine when my car started acting weird. at startup it was running 19-22:1 for a few seconds then settle to stoich but still runs kinda crappy at low RPM.

just wanted to check with you guys before i blow $300 on a new one LOL (or check the wrecking yard....it's hot outside).

 

+1 ^ I would also like to hear what people think as I may need one also.

 

okay, i'm dumb. mine was fine, i tested wrong. i forgot to pull the fuse before turning the key on, but it still did get pretty warm, so i swapped it for another.

car still idles and runs like crap until i hit 2k RPM. i'll keep trying new things until i find the issue.

 

kaj what fuse do you have to pull?

 

20A ECU fuse. driver-side fender, under the hood. pull it for a sec, plug back in, turn key to "on". sensor will move and click. i could hear it but had to record it with my phone to be sure LOL
repeat the process each time you run the test.

 

Maybe because I disabled my EGR? It's all hooked up, but I plugged the port in the head.

 

thanks I'll have to try it

 

You can find less expensive IACV's on line. I purchased one for 70.00. It works fine and corrected my problem.

 

i saw some ebay ones, but opted for used OEM. i have a long, sorted history with non-OEM parts.

anyway, the problem isn't my IACV.

i started the car today and couldn't get the car to idle. i had to keep my foot on the pedal. pulled said fuse again. restarted. fine since.

this leads me to believe it's a tuning issue or yet another sensor. bleh. still sorting through the possibilities.

 

Good day did you ever figure out what the issue is?

 

Not really. The only theory we could come up with is, since I'm running a mini battery, The car may draw enough juice from it during start up that it requires a few seconds for the alternator to get the battery caught up.
However, I never have this problem on a cold start whether the car is on the tender or not. It only does it once the car is warmed up. So.. our theory doesn't quite hold water unless there is some weird difference I don't know about, between cold and warm start ups. LOL

I've just learned to deal with it.

FWIW: for me, it's worse on pump gas. Just last night the car went lean and stalled. Eh well. Becuz racecar, I guess.

 

try adjusting BISS

 

That's the first thing that was checked. The car idles fine, so not really a concern anyway. My problem is only during the first 5-10sec after a warm start up.

 

Hey man.did you ever figure out why that iacv was getting hot?having the same problem.

 

I never solved the problem, no.