Does anyone have a Nanocom (gems) they could lend me?

I've stuck a 4.6 Gems in my D1 manual. I've got her running but she's not firing on all 8 all the time and she's overfuelling a lot. With my Scantool I can read that one O2 sensor(possibly trim, the scantool doesn't specify) is pulling -5% whilst the other is adding +15%. Suggests to me that I have an air leak into the exhaust but strangely when I disconnect the O2 sensors I dont get any DTCs.
Just both banks adding 24%

I've also noticed that closed throttle is 12.5% and WOT is 95%. I assume I need nanocom to reset this?

P38 forum?

Oh and by the way I'd squirt it because Gems is a pig to work with as far as i know!

I've got an Adaptronic waiting to go on complete with all the wiring conversion notes, but I don't want to have to tune a newly built engine, I want to run it in first. Sorry but I still don't like megasquirt, I find it a bit crude.

Not at all like the pushrod v8 which it supplies with fuel and spark?

iirc if you disconnect a sensor the management will go to default mode which is why both banks read 24%. from what you describe and previous experience i would be looking for a leak on the inlet side. i find 90% of lambda problems are inlet related.

Touche Sam

Thanks Yorevol, I'll have a look.