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Thread: 91 vette idle surge

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    Electronic Ignition!
    Join Date
    Feb 2020

    91 vette idle surge

    Ive been trying to tune this car and have learned alot. but ive charnged the injectors. to 30lb sieman deka. edelbrock heads and superram cam around 520 lift. ive been tunning the ve tables with logging and history tables. but the idle sucks most of the time surging from 800-1500rpm. after idling for some time it will find the stable 850 rpm. im seeing the map fluctuate. spark fluctuate and pulse width fluctuate. oh and blms. please help. piont me in a direction. right now im spinning in circles not sure what to loock at.
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