spoolxexo

iTrader: (4)

So what the hell is going on? Stock 2jzge.

I get no cel, o2's are recent, wires plugs are all within spec, I get this AEM Wideband and now I am reporting between:

14.5-15.2 AFR COLD

11.8-12.5 AFR HOT

Both of these are at 20% Throttle cruising.

Checked the ECU, and no cap, board, or trace damage.

Ummmm,, whats going on?

Not that this will matter that much, as I am about to do my 2nd Aristo ECU conversion but wanted to know.

Ali SC3

iTrader: (10)

Vrank, if you have advice to give please do not preface it with undue jesting, obviously the OP has come to the boards because the issue is not easily resolvable.

I actually read it and could not come up with a solid direction to look into on this one, I have some guesses but I tend to chime in mostly on the stuff that I know or recognize. I would check for an air leak maybe on the hose that goes from the intake to the valve cover sometimes is cracked that will usually lean out the open loop ratio's and cause the ecu to try and richen up the closed loop stuff, but just a guess really. I don't think the coolant temp sensor would make it that bad but I haven't had one go on me yet to see what happens.