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Thread: PE Mode Controls All Closed-Loop Fueling

  1. #11
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    Awesome info Shawn. Thanks for doing the tests.

  2. #12
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Your more than welcome..

    I had a lot of data, so also thanks to Joecar for his talents in summarizing into Summary Notes!
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  3. #13
    Lifetime Member SSpdDmon's Avatar
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    So what you're saying is when closed loop is enabled in the tune, having a richer Commanded Fueling in Open Loop (CFOL) table setting than what is in PE table will not override the PE table when the PE enablers kick the car over into open loop?

    What about before the car goes into closed loop (when ECTs are lower than the CL threshold)? I know the logs I have would show the commanded AFRs that follow the CFOL table. But, I never really get on the car to find out if PE took over.

    I do agree with the other half of what you're saying. When CL is turned off, fueling will follow the CFOL table until PE is enabled, at which point it'll take the richer of the two.

  4. #14
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Quote Originally Posted by SSpdDmon View Post
    So what you're saying is when closed loop is enabled in the tune, having a richer Commanded Fueling in Open Loop (CFOL) table setting than what is in PE table will not override the PE table when the PE enablers kick the car over into open loop?

    Jeff, thats 100% Valid in the OS 12212156 I tested. Edit: Per Joecar's reasoning when in closed-loop, PE is enabled..you really stay in closed-loop (+LTFT's applied). Some OS's will say OL-Drive, but its probably never really enters 'classic' Open-Loop..

    What about before the car goes into closed loop (when ECTs are lower than the CL threshold)? I know the logs I have would show the commanded AFRs that follow the CFOL table. But, I never really get on the car to find out if PE took over.

    Like you, I have never stomped on it while the vehicle is warming up. I guess one could enable TPS for say 1-2% and try it..but like you I found it always follows CFOL when warming up..per Joecar's reasoning, since it is not closed-loop yet..I bet it will always follow CFOL in 'cold'-open-loop..(see attachment)..

    I do agree with the other half of what you're saying. When CL is turned off, fueling will follow the CFOL table until PE is enabled, at which point it'll take the richer of the two.
    That one also valid. You ask a great question on warm up..I don't mind testing low TPS PE at that point..

    Anybody try that one?
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  5. #15
    Lifetime Member SSpdDmon's Avatar
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    Interesting...I knew there was a reason I constantly tell people to use the PE table. Damn ESP is flaring up again. LOL

  6. #16
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Quote Originally Posted by SSpdDmon View Post
    Interesting...I knew there was a reason I constantly tell people to use the PE table. Damn ESP is flaring up again. LOL
    Well Jeff, we always knew you were ahead of your time..We could have saved a lot of time if we had just listened to you!..
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  7. #17
    Lifetime Member SSpdDmon's Avatar
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    Quote Originally Posted by WeathermanShawn View Post
    Well Jeff, we always knew you were ahead of your time..We could have saved a lot of time if we had just listened to you!..
    If and when I get married - can you please teach this concept to my future wife? It'll make life much easier from what I understand. Thanks!!!

    PS - Just saw your sig and realized we're twins. The car I just picked up this winter is a Black '02 Z hardtop M6. LOL

  8. #18
    Joe (Moderator) joecar's Avatar
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    For non-EFILive people reading this...

    B3618 = PE EQR table
    B3605 = OL EQR table = OLFA table (depending on the fueling units selected in the tunetool)
    B3647 = OL EQR table for COS (Custom Operating System)

  9. #19
    Member Dirktdolman's Avatar
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    Can you brake the acronyms down for us slow kids? PLEASE

  10. #20
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    RE start of thread:

    Does B3618 or B3605 Control Commanded Fueling..

    Test: 2002 LS1B OS 1221256

    I suppose 1221256 is a misprint, and that we are actually talking about 12212156

    If this is the case i fing it strange that in my calibration (12206911), the 3605 and 3618 consists of numbers smaller than 1, IE 0,88 multiplied with 14,63= 12,87 AFR.

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