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Thread: PE enrichment rate

  1. #21
    Senior Tuner eficalibrator's Avatar
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    Quote Originally Posted by 5_Liter_Eater
    Yea, that PE delay on the trucks, I don't get it.
    It's there so that they don't fail emissions on the US06 (Highway) driving cycle. Keeping the engine on stoich during short duration, moderate accelerations goes a long way to reducing CO and HC numbers.

    Can you get more torque with some enrichment? Yes. Do they NEED more torque in the OEM application? Not really. The bottom line is: "If you don't meet emissions, you don't sell vehicles. Period."

  2. #22
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    Quote Originally Posted by Bill@HPTuners
    Yeah but thats a very different issue in that theres a timer delay in many truck calibrations that ISN'T active in car calibrations, even though it is a delay it really has little to nothing to do with PE enrichment rate.

    so how do I get rid of the PE delay in my truck. 02 1500 5.3 cai exhaust and electric fans

  3. #23
    Senior Tuner 5_Liter_Eater's Avatar
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    Reduce the PE Delay RPM to 0.
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game

  4. #24
    HP Tuners Support
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    Quote Originally Posted by firehawk037
    so how do I get rid of the PE delay in my truck. 02 1500 5.3 cai exhaust and electric fans
    Reading our stickies are always a good start towards the answer

    http://www.hptuners.com/forum/showth...682#post109682
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  5. #25
    Advanced Tuner
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    I'm bringing this back to the top. Is this a feature in newer Gen3 motors because I have a 2000 and I don't see that table/value to edit. Before you ask, I have the view set to advanced.
    2000 T/A - Thompson Motorsports 416ls3, F1A procharger, HP tuned. Just a couple psi of boost.
    2013 Mercedes C350, wish HPtuners worked.

  6. #26
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    Its not in the earlier pre 01' calibrations if im not mistaken
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  7. #27
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    I figured that's what it was. Thanks Bill.
    2000 T/A - Thompson Motorsports 416ls3, F1A procharger, HP tuned. Just a couple psi of boost.
    2013 Mercedes C350, wish HPtuners worked.

  8. #28
    Advanced Tuner Timonator's Avatar
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    Quote Originally Posted by Bill@HPTuners
    Its not in the earlier pre 01' calibrations if im not mistaken
    So,is it not in the HPTuners software or not tunable in the car's computer?

  9. #29
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    There is no table in the pcm for it on them.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  10. #30
    Senior Tuner
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    Quote Originally Posted by 12secSS
    Anything over 1 does absolutely nothing in regards tothe rate of fuel delivery.
    BINGO!

    Oh, and as Chris said above, hehe.
    Formerly known as RWTD

    Toys: '22 Tesla Model S Plaid / '20 Chevy Duramax / ?20 Sea-Doo RXT-X (2)

  11. #31
    Potential Tuner
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    where should i set my enrichment rate at????