PCM Diagnostics & Tuning - Trying to Set Idle Higher?

Okay, i jsut wanna bump my idle up a bit. Any easy ways to do this? I have a HPP, but dont even know if it's an option with it. Any other ways?

you cannot do it with the programmer. you will need EFI LIVE or LS1edit
I'm on a friends computer now, but I can tell you the tables when i get home

What about HP Tuners? WIll it work, i ahve a chance to get one cheap, it has a 1.4 version disc for 98's and a cd-r with 1.5 version supposedly.Does this sound right?

talk to www.hptuners.com

make a post and register.... go for it, as I have EFI LIVE and i don't know a lot about HPTuners, but i believe it will do it

What about HP Tuners? WIll it work, i ahve a chance to get one cheap, it has a 1.4 version disc for 98's and a cd-r with 1.5 version supposedly.Does this sound right?


I got my car tuned tonight by a HP Tuner and before the tune I was right at 500RPM's and now im around 750RPM's, so it can be done.

Set screw wont work properly unless you go past IAC ability to pull air. Proper fix is PCM idle speed change.

The idle set screw is a torx bit T-10. However, as stated above you need to do it through the PCM. There's a table (that should be in all versions of LS1Edit, HPT, EFI Live) that allows you to adjust desired idle speeds based on coolant temps. The newer cars also have a run timer that will add rpm to the desired idle speeds for 20 seconds after startup before slowly decaying away. I think '01 was the first year they used this on LS1 f-bodies.