C5 LS2 Swap Idle Hanging / Poor Throttle Response ... Logs/ Tune Inside

Hey all, I was wondering if anyone could take a look at my logs/ tune and see if there is anything I can mess with to try and cure my hanging idle. It seems to be worse when the motor is hot? Throttle response, I think, could be better as well. The car was tuned by a very reputable shop, and other than the hanging idle and less than desirable throttle response, it runs like a scalded ape. Made 471/442 on a Mustang dyno. The car was tuned on TR55's gapped to .055" (I didn't know any better). I have tried a bunch of plugs in the car, and the colder plugs (TR6) make the throttle response worse and makes it buck in 6th.

Basic combo:

LS2 shortblock
TEA 2.5, Fel Pro .041", milled to 64cc, 11.6:1 SCR
BTR # 2 Cam
Fast 92/ LS2 tb
LG 1 3/4
NGK TR5IX (.040" gap)

Logs:
Attachment 50057
Attachment 50058

Tune:
Attachment 50059

Anyone have any input?

Quote:

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Originally Posted by lxcoupe

Hey all, I was wondering if anyone could take a look at my logs/ tune and see if there is anything I can mess with to try and cure my hanging idle. It seems to be worse when the motor is hot? Throttle response, I think, could be better as well. The car was tuned by a very reputable shop, and other than the hanging idle and less than desirable throttle response, it runs like a scalded ape. Made 471/442 on a Mustang dyno. The car was tuned on TR55's gapped to .055" (I didn't know any better). I have tried a bunch of plugs in the car, and the colder plugs (TR6) make the throttle response worse and makes it buck in 6th.

Basic combo:

LS2 shortblock
TEA 2.5, Fel Pro .041", milled to 64cc, 11.6:1 SCR
BTR # 2 Cam
Fast 92/ LS2 tb
LG 1 3/4
NGK TR5IX (.040" gap)

Logs:
Attachment 50057
Attachment 50058

Tune:
Attachment 50059

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There's not a lot to go on with those logs.. there's not much being recorded.

I'm not very familiar with the gen 3 computers, but I noticed your idle airflow is way above mine (like double) and mine is dragging a supercharger at idle too. You also have a bunch more idle timing than me. See if you can add some PID's that have to do with idle timing advance/retard to see what's going on. I'm not sure exactly what they will be called on yours

That may be normal for Gen 3's, I don't know, but that's the first things that stand out to me

What year is the car/what computer is being used??