Reality Check, PE = WOT only?
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Joined: Nov 2001
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From: Centrifugal City
Reality Check, PE = WOT only? Just a quick reality check.
Is PE Mode used during WOT only?
Also, if related could someone give me a quick refresher on open loop and closed loop definitions?
TIA!
Is PE Mode used during WOT only?
Also, if related could someone give me a quick refresher on open loop and closed loop definitions?
TIA!
Yes, PE is only used when the WOT threshold is passed, which is like 64% throttle at low rpms and 26% at high rpms.
Open loop means the pcm doesn't adjust fueling based on the o2 readings, closed loop means it does adjust.
Open loop means the pcm doesn't adjust fueling based on the o2 readings, closed loop means it does adjust.
WOT means different things in different places.
There is a PE enable threshold %TPS and MAP.
TPS is as described. But the trans tables think
TPS is >94%. You can make it what you want.
Open loop fueling tables also enrich fueling on
a continuous MAP basis while PE enriches only
when TPS and MAP are satisfied, by RPM. I haven't
found any description of non-PE ways to enter
open loop mode dynamically (only "static",
temperature enable and like that).
There is a PE enable threshold %TPS and MAP.
TPS is as described. But the trans tables think
TPS is >94%. You can make it what you want.
Open loop fueling tables also enrich fueling on
a continuous MAP basis while PE enriches only
when TPS and MAP are satisfied, by RPM. I haven't
found any description of non-PE ways to enter
open loop mode dynamically (only "static",
temperature enable and like that).
