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  • 1 Post By matt5112

E85 hard start in mornings or after sitting a while

This is a discussion on E85 hard start in mornings or after sitting a while within the PCM Tuning forums, part of the W Body Tech category; I put 60lb injectors in my 04 gtp and its running on E85. It runs pretty after changing the ifr ...

  1. #1
    GT Level Member LapeerGTP's Avatar
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    Default E85 hard start in mornings or after sitting a while

    I put 60lb injectors in my 04 gtp and its running on E85. It runs pretty after changing the ifr table but it has trouble starting. I've tried to cycle the key a few times before starting to see if that was it but that didn't work..

    Is there any table in dhp that I can enrich/lean out the start up afr??

    Sent from my DROID RAZR using Tapatalk 2

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    GrandPrix Junkie MoarkatsINmuhtrailer's Avatar
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    Anytime you put larger injectors in a car, its gonna take a little more to start up

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    Donating Users Tuner-Extraordinaire's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    Get the offsets right?
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.

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    GT Level Member LapeerGTP's Avatar
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    If you mean offsetting the ifr table for the new injectors then yes I did that. Was just think maybe there was a commanded enrichment value for start up based on temp..

    Sent from my DROID RAZR using Tapatalk 2

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    Donating Users Tuner-Extraordinaire's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    There's another couple tables that can use some help

    Voltage offset comes to mind. It brought my 42# SVO's in line.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.

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    GT Level Member LapeerGTP's Avatar
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    Well car is finally back together, months later... I'm gonna be messing with this soon.. I've got the wide-band in it now so hopefully that will help me figure this out..


    Sent from my DROID RAZR using Tapatalk 2

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    Pretty colours matt5112's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    Quote Originally Posted by 99pgpgt View Post
    Anytime you put larger injectors in a car, its gonna take a little more to start up
    Untrue.

    My car starts up instantly all the time.

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    GrandPrix Junkie MoarkatsINmuhtrailer's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    with 42s right?


    i was just saying that anyone that i have seen put like 60s or larger in a car seem to take alittle longer to start

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    Pretty colours matt5112's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    Quote Originally Posted by 99pgpgt View Post
    with 42s right?


    i was just saying that anyone that i have seen put like 60s or larger in a car seem to take alittle longer to start
    I have 70's in there now.

    No "Tau" (see megasquirt manual) control so fuel trims are slightly off until it warms up completely.

    If this is a function of E85, I cannot comment as I have no experience with the fuel. Only E10.

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    GrandPrix Junkie MoarkatsINmuhtrailer's Avatar
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    Default Re: E85 hard start in mornings or after sitting a while

    ahh i gotcha

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    GT Level Member LapeerGTP's Avatar
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    Well the car is alive again... Hopefully will stay together awhile..

    One thing that's odd is the heads up display doesn't work now. Not sure why.. didn't do anything to the car to disrupt that other than the battery being disconnected for a long time...

    Sent from my DROID RAZR using Tapatalk 2

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    GT Level Member LapeerGTP's Avatar
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    Went out at lunch. heads up display is just the typical spring failure.. just one more thing to fix..

    Sent from my DROID RAZR using Tapatalk 2

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