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Old 05-24-2022, 11:47 AM   #32
R8der11
 
Drives: 2021 ZL1 1LE
Join Date: Jul 2021
Location: CA
Posts: 12
Quote:
Originally Posted by JANNETTYRACING View Post
Proper tuning is done from Idle up, Not Full throttle down.

Ted.
Would a voltage booster help with these codes?
129D and 12a6

did a search and it resulted in this - The Diagnostic Trouble Code (DTC) will be set when the Fuel Pump Power Control Module ignition switch circuit voltage is less than a calibrated value for 1 s.
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