Help can't lean out car in PE !! w/ HP tuners
08-20-2004, 11:55 PM
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Help can't lean out car in PE !! w/ HP tuners ive gone as far as to set all relevant PE and even open loop vs. ects to 1 to try to lean it out. I changed all WOT PE values from 3600 -6400 up to 1 (should be at 14.63) which is commanded AFR and i also changed ECT vs. MAP to 1 at all values between 122 and 214 deg. anything past 75KPA which would equate to WOT. NO matter what I do, i cannot get any leaner then 12.2 on my LM-1. At idle im at 14.7, i just dont understand where it could be getting its commanded afr from. Any help would be apppreciated. Im hitting the track tomorrow. I've also turned off COTS
Thanks
Dave
Thanks
Dave
08-21-2004, 02:13 AM
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they are zero'd. i ifgured it out. it wasnt saving my WOT PE settings for some reason. What do you guys do to modify WOT fueling? Do you use the ECT vs. Map
or just the PE vs. RPM and set the ECT vs. Map so lean that it'll never get used in the higher MAP area (WOT)?
or just the PE vs. RPM and set the ECT vs. Map so lean that it'll never get used in the higher MAP area (WOT)?
08-21-2004, 06:18 PM
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nah it just wasnt saving my WOT PE. I had to lean out the ECT vs. MAP so it didnt use that table as it was much richer then what i need for my 13.0 AFR. Gained 1/2 mph and a tenth just by leaning out out from 12.0 to 13.0 today in worse air then last weekend 
(-76'DA last week vs. 568' DA today)
Dave
(-76'DA last week vs. 568' DA today)Dave
08-21-2004, 06:34 PM
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Every time you go set your PE vs RPM table, you should
go back to the Open Loop Fuel/Air vs ECT vs MAP table
and push the max values there, down to no more than
the PE table. Otherwise the OLFA will win out and you
will see that value,
go back to the Open Loop Fuel/Air vs ECT vs MAP table
and push the max values there, down to no more than
the PE table. Otherwise the OLFA will win out and you
will see that value,
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08-21-2004, 11:45 PM
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Originally Posted by jimmyblue
Every time you go set your PE vs RPM table, you should
go back to the Open Loop Fuel/Air vs ECT vs MAP table
and push the max values there, down to no more than
the PE table. Otherwise the OLFA will win out and you
will see that value,
go back to the Open Loop Fuel/Air vs ECT vs MAP table
and push the max values there, down to no more than
the PE table. Otherwise the OLFA will win out and you
will see that value,
Tom
Last edited by BlackWS6LS1; 08-21-2004 at 11:53 PM.
08-22-2004, 11:38 AM
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That's the way I understand it. Because the enrichment
selection picks the fattest of all the available players
(PE vs RPM (plus adders/multipliers), Open Loop F/A,
COT, anything else that applies by its individual enable
logic).
Thing to do, probably, is log your Fuel/Air Multiplier as
you tune. It should resemble the PE vs RPM value on
WOT runs. If it doesn't (too high), you have to go and
see what it -does- resemble in the various other fuel
tables and go step on them. If it doesn't (too low)
then you would have to look at your PE enable set
and see what is keeping you from getting it. But that
is not the problem at hand I think (though I'm not quite
sure, what the deal is).
selection picks the fattest of all the available players
(PE vs RPM (plus adders/multipliers), Open Loop F/A,
COT, anything else that applies by its individual enable
logic).
Thing to do, probably, is log your Fuel/Air Multiplier as
you tune. It should resemble the PE vs RPM value on
WOT runs. If it doesn't (too high), you have to go and
see what it -does- resemble in the various other fuel
tables and go step on them. If it doesn't (too low)
then you would have to look at your PE enable set
and see what is keeping you from getting it. But that
is not the problem at hand I think (though I'm not quite
sure, what the deal is).
08-22-2004, 11:42 AM
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I resolved my PE problem. Basically what I did is modify any tables in ect vs. map in OPEN LOOP that would be richer then my PE vs. RPM is. I set those cells to 1 (14.7:1) so they will never been seen or used. Do not do this to any cells you may be in while crusing around in open loop (cold start or first xxx seconds after startup) as it'll then run way rich at the given KPA vs. RPM.
Dave
Dave
