91 Octane

Using shell gas

3rd gear 2500-6500, car went into limp mode..

Rerouted MPI fuel line with fuel T and plugged passenger side, new DV failure sound

Max boost should be 18psi - why is this 22?

Not sure which fuel - Coop or Costco

JB4 then Dinan before engine. To see dinan values output to ecm