I have these symptoms...slowly leaning out, stalling , unpredictable air/fuel ratios, what seems to be a fuel-cut at 9psi , so forth. Its gotten exponentially worse since in the last 2 weeks, but the occasional idle games and sometimes powerless high-end pulls have existed since I've owned the car (over a month) . Now, anything over 40% throttle and it will buck and lean out so I've bought the Walbro 255 and kit. Some times the pump will get so loud you can hear it wining like its dry and that's when the car will act really bad and stall if you do not give it a bit of gas. This all started when I over boosted, heard a huge amount of gas explode , and blew off my IC t-body piping . Ive already changed plugs. If this dosen't work Ill either call warranty or purchase new plugs, wires, and okada coils with some hard inter-cooler piping.

Does anybody have advice to add to guide me? I'm on a budget so I want to get this fixed without spending useless money . Thanks

 

I would try to find a local guy that could help you find the problem or find a local shop that knows evos. It could be in the tune or many things.

 

Does the car drive normally under no boost? Are you running the stock ecu?

 

Yes, and yes.

 

if you can log, have a look at what your o2 sensor is doing. it could possibly be the culprit.

 

Try testing your coil packs and plug wires.

 

okada direct coil packs ftw. they solved everything and added stabillity, power, and consistency. thanks! check/replace plugs, wires, and coils