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Decel enleanment 6E..HELP!

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Old May 12, 2013 | 12:34 PM
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TPI-Formula350-'s Avatar
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
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Decel enleanment 6E..HELP!

I'm getting a rich AFR spike just after a WOT pull. My datalogs/WB show it going from my mid/high 12s at WOT to mid 11's when I lift off the throttle. Can someone point me to the correct place in TP5 to correct this. Also do I increase of decrease the value to to lean out the DE..Thanks
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Old May 12, 2013 | 07:42 PM
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From: Long Island New York
Car: 89 Formula 350
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Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: Decel enleanment 6E..HELP!

maybe a quick rich spike is normal just off wot??
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Old May 13, 2013 | 10:42 AM
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Re: Decel enleanment 6E..HELP!

Originally Posted by TPI-Formula350-
maybe a quick rich spike is normal just off wot??
Do you have in your mask DFCO?
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Old May 13, 2013 | 06:43 PM
  #4  
TPI-Formula350-'s Avatar
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: Decel enleanment 6E..HELP!

Originally Posted by Ronny
Do you have in your mask DFCO?
Yes Ronny,I have a lot of DFCOs


DFCO enable if RPM above...set to 1200 rpms
DFCO remain if RPM above...set to 900 rpms
DFCO disable if temp less then....set to -40
DFCO enable if conditions met foe x ...set to 1 second
DFCO enable if LV8<x ...set to 30.00
DFCO remain if LV8 <x... set to 40.00
DFCO Max RPM decrease/12.ms..set to 87.5 RPMs
DFCO enable if % TPS <x ..set to 3.13
DFCO disable low vss speed limit..set to 15mph
DFCO consecutive minimum delay..set to 6.39 seconds

just not sure which one to change, and which way to go with the value.
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Old May 15, 2013 | 06:52 PM
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TPI-Formula350-'s Avatar
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: Decel enleanment 6E..HELP!

Bump
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Old May 16, 2013 | 10:00 AM
  #6  
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Decel enleanment 6E..HELP!

Looking at both BUA & ARAP, DE is disabled. So if the BIN you are using is the same you will need to set up the parameters to enable it, then tune it in.

The TPS% filter is set to 100%, then the delta TPS% & delta LV8 values are set very high. The amount if time in DE is set to 0, along with the IAC TF steps.

The fuel limiting factors are set to 128, which looks like that disables DE on the injector PW.


RBob.
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Old Oct 7, 2021 | 10:57 AM
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Re: Decel enleanment 6E..HELP!

Bump for great information
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Old Oct 9, 2021 | 03:14 AM
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Re: Decel enleanment 6E..HELP!

IMO, if it were just a momentary spike, that kinda seems normal though with the sudden close of the throttle body. If it stood at 11.50 AFR all the way back down the RPM scale though during DFCO, I would be thinking leaky injectors. Either way, if he is reading this, I bet he is dying to have that car back. Told you not to sell it Eric lol...

- Rob
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Old Oct 9, 2021 | 12:09 PM
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Re: Decel enleanment 6E..HELP!

THIS information helped me get a car to pass emissions.
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