VY SS Auto tune ??

First, I don't know what a VY SS is! My guess - a Holden based car?

I was looking at the file. The {B4402} "Max IAC Steps" has been increased from the standard 310 to 365. {B4403} IAC Effective Area is also rescaled - but the maximum steps are still 310.

So, I guess they've increased the resolution of the IAC (smaller sized steps). Why ?? :?

What size throttle body does this vehicle have??

Thanks!
Cheers,
joel

Edit -> I have an ASA tune (GM) and the B4402 is set at 365. The B4403 is stock 78 mm Throttle Body IAC Eff Area.

Yes the VY SS is a Holden Commodore VY SS. 5.7L LS1 made from 2002 until 2004.

Standard T/B is 78mm from memory.

Quote:

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Originally Posted by jsttry

Yes the VY SS is a Holden Commodore VY SS. 5.7L LS1 made from 2002 until 2004.

Standard T/B is 78mm from memory.

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Thanks. I guess they changed Eff Area for drilled TB? What does increasing the IAC Steps MAX to 365 steps help with?? Anyone have any ideas?

Cheers,
joel