[Dan03mach]

Originally Posted by jchambers

Misinformation!!!! The base fuel table does set the desired lambda at wot conditions. The idea is to make your actual lambda closely match the desired lambda. The desired is coming from the base fuel table, which in most strategies is a function of RPM and load.

How is the desired lambda read, with the o2's correct? So when you go WOT and switches from closed loop to open loop the o2's are no longer being in use and your car is going only by what the MTF is set at. You can have your base fuel set at whatever you desire and once you go into open loop at WOT the table is irrelevant. What you are saying is if you don't go into open loop your A/F ratio is being controled by the base fuel table and controlled by the front o2 sensors and yes that is correct and your computer will make adjustments to the MTF to reach desired lambda. But like I said earlier once you go into open loop it takes the o2's out of the loop and uses only what is programmed in the MTF.