Problem: No control over boost. ECU load reads 290-310 every pull, and fluctuates. Boost gauge AND ebc (greddy spec 2) gauge read 10-12 psi. No matter what I set the ebc to, it does the same thing.

Mods: HKS 280 cam, turbo back exhaust, gredddy profec spec 2, Aeromotive FPR (set to factory pressure), and HKS RS filter, custom flash. Stock evo IX turbo and wastegate, never adjusted the wastegate. Also just replaced the solenoid for the ebc, and still the same problem.

Question: Even if I shut the ebc off, I get wastegate pressure, but the gauges still read really low (1-2psi). But my load cells do go back down to 200s or so. Could it be a boost leak? Leak in vac lines? Stuck wastegate?

 

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