Hey guys, I have a 2017 ZL1 Camaro with a 2650 Maggie and cam and all the other stuff. My question is whether or not I have to tune the FSCM to allow the 17.5 volts from the JMS to get to the low side fuel pump? Right now my low side is tanking at 5700 rpm running e40. I lowered the e to 13, essentially running 92 pump gas, and the low side held strong at 74psi through 6700. A tech at JMS said he doesn't thing the voltage is getting to the low side even though the booster is pushing out 17.5 volts at WOT.
Any help would be greatly apprediated.