Flashing CEL, low boost

[Pearldrummer7]

Hey guys,

I have an 02 ECU with a EJ257/205 in it. It was running great yesterday and today there seems to be an issue. The CEL is flashing and it isn't making boost.


I pulled the codes, and only got codes for O2 sensors, Fuel pressure/temperature/level sensors, and charcoal canister (which are the ones I've always had with it).

If I reset the codes, the light immediately flashes. I assume this means I shorted a wire to ground or am missing a ground or something like that. Anyone have any idea where to start?

Thanks

[STiPWRD]

The FSM has a troubleshooting section that may help with the flashing CEL. I've never had this issue so I can't be of much assistance. I assume the car still runs? Does your manifold pressure go from vacuum to 0 psi when you rev? Is that what you mean by it's not making boost?