allow me to clarify, my bike is a 2002 zx12r. no factory o2 sensor. Does not have the option nor the ability for the ecu trying to run stoich based off of exhaust readings. Never did. No pair valve either. No emissions control.
The pair valve it used to have never ticked either. It was vacuum actuated. No solenoid, just a simple diaphragm actuator.
With the tune in it, and the desired afr table I have loaded, it never runs stoich. Cruises at about 0.92 labmda, or about 13.5:1 afr. When it is full throttle, it goes to about .87 labda, or about 12.8:1 afr. It does not run at stoich under heavy load. It used to indicate a stoichiometric 1.0 lambda when cruising with the catalytic converter with the pair valve installed, but that was due to air entering the exhaust stream through the pair valve and reacting with unburnt hydrocarbons in the catalytic converter. That is once the cat was up to temperature. In reality the mixture entering the engine was slightly rich. The emission controls, specifically the pair valve, altered the exhaust stream, skewing the readings. Measuring afr's with emission controls is not accurate in terms of balancing the air/ fuel blend entering
the engine. I could be running on the rich side, but those systems would compensate and make it seem like a stoich blend is entering the engine, due to the emission control altered exhaust. Post-emissions afr means absolutely nothing for my application. If I have a messed up tune, but the ecu and emission controls make it indicate stoich, well, I would still have a messed up tune. I am more concerned with performance at the track than emissions on the street, so all of that has been pulled off to avoid altering the afr readings. I need to know the balance of the fuel mixture on the intake side. The ecu still sends out the appropriate signals to have a stoich-ish exhaust stream as if the emission controls are functioning, however, those signals are intercepted and modified to allow a more performance oriented ride.
My question (in the first place) was can you tune the bike through all gears , so the bike keeps the same AFR's through all gears instead of having to run rich down low the have the right AFR's up high using WOT or have the right AFR"s down low and leanout in the higher gear using WOT and all the revs the bike has to offer .Seems everyone else new what I was talking about other than you Hubz.