Originally posted by Josch:
But it was (and is) my understanding that Ford EEC-V still uses the WOT strategy that uses only pre-set (open loop) lookup tables for A/F ratio at WOT, and does not use fuel trim during that time. And that fuel trim (adaptive) compensation was only brought into part throttle and idle strategies during times when O2s weren't able to generate sufficient reliable closed loop feedback.



Actually it does use table values from the adaptive strategy for the A/F Ratio at WOT (open loop), it just doesn't look at any sensor inputs in open loop or contribute further to the adaptive values. It will only use the pre-set lookup values if the PCM has been reset recently and new values have not been determined yet.

-Lance

Lance Kinley CEG Webmaster 95 SE, "Cassandra" 10 years!