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Ana2 is an input and aux2 is an output.

Thanks very much for all your help guys - had the engine on the dyno this week to map it. Everything worked first time . Made 490 hp and 450 ftlb - very happy!

Shedman wrote:Thanks very much for all your help guys - had the engine on the dyno this week to map it. Everything worked first time . Made 490 hp and 450 ftlb - very happy!

It's hard to go wrong with an LS !

Just got to find a way to get it down on the tarmac now

It's a light car, get some decent tyres on it and it'll be fine.

Rob Stevens wrote:I think you need to add a pull up resistor to 5v for this to work, its shown in the wiring diagram. But as Stevie says you can turn the loging on with wheel speed this frees up this switch for something else should you wish, assuming you have wheel speed.

I'm redoing some of my loom which includes the log switch via ana2. For the life of me I can't remember if I used the 5V/pull up resistor as per wiring diagram or if I just grounded ana2 input to activate...
Anybody know which one works 100% I'm in the middle of this right now so any help would be appreciated!
Simon

100% works with 5v pull up, probably hit and miss without. If you have a wheel speed sensor you can select log to operate when wheel is turning.

The same switch does logging/wideband/map2 selection if I recall correctly ?

I just switched mine to ground, same as TCS, WET/DRY. Never had any problems.

ana input doesn't have built in 5v, others do

Thanks guys, I'll do the pull-up version now to save the (possible) headaches later. Looks like I need to source the damn little resistor now...
Cheers!
Simon