VX L67 Getrag wrote:I just open OS 12202088 with hp tuner 2.23(885) & it has lean cruise options?

The tables appear to be available irrespective of whether the flag to allow it is set or not.
The enable/disable flag, located outside of the calibration area, should only be set in Holden calibrations though.

I just checked in HPT and it won't seem to open a file with an incorrect checksum, so here is a 12202088 file with lean cruise enabled and the checksum corrected so it will open in HPT.

You can use TunerPro to change it. It's at x29A86 and is a 16bit value; change from 6066 to 4E71 to enable Lean Cruise - then you will have to populate the lean cruise tables. Then reload and let HP tuners correct the checksum for you. Does HP tuner let you access all the control parameters other th...

Those are wearing the badge only introduced with VS.

VP mudflaps should be essentially the same, but with a period correct logo. It might have just been a moulded logo on VP.

Do the MAT numbers make more sense if you just use the same calculation for MAT as for ECT? (ie X*.75-40 or X*1.35-40 for degrees C or F)

If that's in closed loop, which it looks to be is INTs are active, then that is not a great looking O2 trace, but at least it is swinging, and the trims aren't huge.
If it's an old sensor it might be worth a replacement.

1 lb/hr ~ 0.126grams/sec = 7936 ms/g ~ 10.76cc/min (assuming gasoline weighs 737kg/m3 per kingflow spreadsheet)

zspanners wrote:There is an open loop idle table , but this does not seem to be used in the short term , maybe befor O2 becomes active or after sustained idle and cold O2 ???

Any time you set the OPEN LOOP IDLE AFR VS ENGINE TEMP table to a value other than stoich it will be open loop idle, wont it?

VX L67 Getrag wrote:But if you use another bin then you'll loose bcm link so you'll need to disable vats & then relink if you have capabilities!

Will writing your original EE data back into the new tune take care of that?

foakley wrote:The only thing I changed were the fan 1 & fan 2 on / off temps..

Did you set the id to AA to bypass the checksum?