So I have a TD04 with with a grimmspeed Uppipe and Tial 38mm EWG with a 11 psi spring. I run a 3-port Perrin BCS.
Ever since I installed it I'm getting some strange (In my opinion) things that happen. When I'm just cruising under light load, the gate is obviously closed, but then when I am going up a hill or accelerating mildly, the gate will start to open at around 3 psi. It will be fully open by 7.5 psi and I can't get anymore unless I get past 20% throttle where the WGDC starts up and targets 10 psi.
I have a map where all WGDC and boost targets are 0. I cant get more than about 8 psi max under full throttle.
Today I was driving in second gear about 2000 RPM after starting the car. (temp was between the C and the first line of the temp gauge) and all of the sudden the engine just cut for about one second. All the lights stayed on, and the AFR gauge flashed null (too lean), then it was back to normal. Hasn't done it again. I was thinking that it was a fuel problem, but I'm not 100% sure. Oil pressure was fine, no CEL's.
During spring break I'm taking my intake manifold off, doing the TGV deletes, putting new clamps on all fuel hoses, raising base fuel pressure by 10 psi, switching to open source, installing a new turbo inlet, and pressure testing everything, so any boost leaks will be caught then. I'm hoping 10 psi over base fuel pressure will help E85 cold start on these modded injectors.