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Thread: low spark advance at idle - 1227730 -$8D

  1. #1
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    low spark advance at idle - 1227730 -$8D

    Hello everyone
    I'm using the S-AUJP v7 and the spark advance at idle is 8.5deg. The main SA has 28 at idle region and 28 at WOT idle rpm region. The temperature was above the warmup kickdown. The bit "use Closed throttle SA below 113F" is not set. My "closed throttle SA table" is 11deg at low rpm that applied for idle rpm region as well. my idle is 1100rpm low temp and 850rpm at normal temperature. It is possible it is using the closed throttle table since the values are close to each other, or maybe some issues with the bin file.

    Any idea where could be the problem?
    Thank you
    '91C4 ZF6

  2. #2
    Fuel Injected! ULTM8Z's Avatar
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    Re: low spark advance at idle - 1227730 -$8D

    Is the 8.5 deg what TP is reporting? Or what you're measuring with a timing light?

    Maybe post your bin and a datalog?
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    Re: low spark advance at idle - 1227730 -$8D

    Quote Originally Posted by ULTM8Z View Post
    Is the 8.5 deg what TP is reporting? Or what you're measuring with a timing light?

    Maybe post your bin and a datalog?
    it is the TP datalog. but isn’t the ecm using the closed throttle spark table, since the idle is at close throttle? maybe that’s it.
    thank you
    '91C4 ZF6

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