AC on and it idles at 3000+ WTH?

[Chuck L.]

Whats your point?

Could the T/B be causing the idle problem[s]??

[Darkness]

I dont know but it just started doing it, and now I have these codes, could it be the MAP sensor that went out?

[Tordne]

Do a compare of your tune vs. a 2000 stock Vette. I noticed that a number of the MIL enables etc. had been messed with (for some reason).

I think you will end up chasing your tail a lot in that tune. A bold/broad statement.. But, it is relatively easy to make power tuning on a dyno, but it is A LOT harder to nail all the idle transition stuff to give the car manners.

[Darkness]

Do a compare of your tune vs. a 2000 stock Vette. I noticed that a number of the MIL enables etc. had been messed with (for some reason).

I think you will end up chasing your tail a lot in that tune. A bold/broad statement.. But, it is relatively easy to make power tuning on a dyno, but it is A LOT harder to nail all the idle transition stuff to give the car manners.

Yeah I think I'll have to start with a brand new tune. I got my LC-1 hooked up and reading correct so I'm going to start tunning the VE with it.

[Tordne]

If you do start from a stock tune again make sure you change the B0104 value as you have a 408 ci motor

[Darkness]

OK, this problem HAS to be mechanical, there is no reason for the car to rev it self like that. I mean sometimes it drives and idles like a dream, other times is just revs it self to close to 4000 while rolling, once its stopped it comes down to normal after a few seconds. Sometimes it revs it self out of the blue so hard that it makes the traction control kick in. (its been raining these days)

What can I do??? :(

[joecar]

Have you checked the return spring on the throttle shaft/cam at the TB, is it weak/broken...?

[Darkness]

Have you checked the return spring on the throttle shaft/cam at the TB, is it weak/broken...?

Its an ETC and when I log the absolute throttle when its idling fine it shows ~7% throttle and when it goes crazy it shoots up to 12% for no apparent reason.

[SSpdDmon]

You should log all airflow adders to see if you can figure out which table it's coming from (cracker, follower, etc.).

[Darkness]

You should log all airflow adders to see if you can figure out which table it's coming from (cracker, follower, etc.).

Ok will try but dont know if I'll know what to look at though.