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Does The PE Table play a roll in a Open Loop Tune?

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Does The PE Table play a roll in a Open Loop Tune?

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Old

May 19, 2007 | 09:43 AM

#1

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From: Shelby Twp. Mich

Question

Does The PE Table play a roll in a Open Loop Tune?

My Tuner has my 408 tuned for Open Loop only.Does WOT use the PE table or does it go by the Open Loop F/A vs. Coolant Temp vs. map table? Thanks for the help

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May 19, 2007 | 10:42 AM

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FormerVendor

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From: Richmond VA

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It picks the richer of the two which almost has to be PE.

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May 19, 2007 | 10:51 AM

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Kleeborp the Moderator™

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From: Dayton, OH

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Quote:

Originally Posted by Frost

It picks the richer of the two which almost has to be PE.

Correct...the PCM always errs on the safe side. I've been running mine open loop for who knows how long, and still use the PE table for WOT fueling (but my Open loop table is only a hair leaner at WOT MAP values).

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May 19, 2007 | 10:57 AM

#4

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From: Shelby Twp. Mich

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I have heard this before.Well then my PE is alot richer.Thanks

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May 19, 2007 | 02:06 PM

#5

Staging Lane

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From: Powell, TN

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PE is an open loop mode only, even when you are in closed loop. As soon as you go into PE, the O2s are no longer used and your fuel trims lock.

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loop, open, pe, table, tune

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