I'm a bit confused about the difference between PE mode and WOT.

Is there a difference, and if so, what is the difference?

Thanks!

 

No difference except in the name. Well, WOT usually means 100% throttle, but as far as tuner programs, those 2 terms are both used but mean the same thing, with PE being the correct GM term.

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Greg Westphal
'87 IROC 355TPI/A4

 

Beg to differ.
You can set PE to be enabled at like 15% TPS, and that's hardly WOT.
WOT means mechanically the engine is at full load or close to it. ie Butterflie/s are about fully open.

 

That's what I meant to say, but was at a loss for the right words. Grumpy said it better.

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Greg Westphal
'87 IROC 355TPI/A4

 

For tuning purposes I see some tables named WOT something and PE something. Are those terms used to mean the same thing in that context?

I agree that WOT should mean close to 100% open.

 

A table labeled WOT means your just about at full throttle. It varies some, but lots of ecms use a TPSv to mean that.
Lots of them consider like 3.8v TPS as being WOT. It also, *might* mean that things are getting refered to a specific RAM location. This is why actually knowing the code that is running in your car is so important. There are some entries also that are just filler material, and they can have any kind of name.