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LS3 Swap throttle issues

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Old Yesterday | 10:16 PM
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CMcCarty239's Avatar
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Default LS3 Swap throttle issues

Hi all, I have a new LS3 swap in a 65 Chevy impala, everything is new with GM warranty from front to back. The issue I cannot nor anyone else can find is I loose throttle response and I haft to reset the computer by unhooking the battery. We have replaced the alternator with a 200 amp and it still does it... Any help please...
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Old Today | 07:55 AM
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Rich-L79's Avatar
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It would either be the ECM or the throttle body. Not sure why the alternator was changed.
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