IAC counts too low?
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
IAC counts too low? I always see talk of getting IAC counts lowered to help get idle surge taken care of, mostly with suggestions to slightly open the throttle blade and do a tps relearn.
If your IAC count is very low, like 8-20 at idle, should they be somehow raised up?
If so, how would you raise them up?
If your IAC count is very low, like 8-20 at idle, should they be somehow raised up?
If so, how would you raise them up?
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
I'm wondering if that is the cause of my surge? Too much air?
I guess I'll have to put the screw back in from the bottom. I have it threaded in from the top, but it evidently won't go in far enough.
I guess I'll have to put the screw back in from the bottom. I have it threaded in from the top, but it evidently won't go in far enough.
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
What I didn't realize (until just now) is that maybe 6 months ago, when I ported my throttle body, I also swapped the throttle screw around so that it screwed in from the top instead of from the bottom.
Now the more I think about it maybe it just isn't letting the blade close enough and I'm wondering if this has been my whole problem since February
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
Evidently, the inverted throttle blade screw has been the issue I've had since February.
With throttle screw re-installed like stock, my logged IAC counts are now between 50-60 when warm...very, very slight intermittent surge, and no hanging idle or cruise control effect...
Sometimes it's the smallest things that create the most headaches...
With throttle screw re-installed like stock, my logged IAC counts are now between 50-60 when warm...very, very slight intermittent surge, and no hanging idle or cruise control effect...
Sometimes it's the smallest things that create the most headaches...
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Thread Starter
Joined: Nov 2005
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From: Baltimore County, MD.
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I have never seen a car that I couldnt screw the screw in far enough. I have also never drilled a throttle blade. No sense in it.
I can open up the throtle blade with the screw. Now even if you reset the tps your tp voltage will still be off. For that I make the tps adjustable to clock it back to its original position so that voltage is at .6
Just elongate the holes in the tps sensor. Works like a charm.
I can open up the throtle blade with the screw. Now even if you reset the tps your tp voltage will still be off. For that I make the tps adjustable to clock it back to its original position so that voltage is at .6
Just elongate the holes in the tps sensor. Works like a charm.
