Quote:
Originally Posted by R8der11
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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Although a JMS fuel system voltage booster is strongly recommended for any supercharger application it will have no effect on your codes.
Ted.