Hey guys,

I keep randomly getting a CEL for Low and High voltage on the fuel pump. It always goes away pretty quickly( and always if I fill up the tank). Mechanic thinks it's due to the mods (JB4/Exhuast/Intake). Does anyone have any ideas? I can swap back to OEM parts on everything except the exhaust and do trial/error if I need to. Thanks for the help.

 

I do not see how it could be the intake or exhaust I would just unplug the JB4 from the OBDII port and see if it goes away first before disconnecting the whole thing.