Hey guys so I have a problem with my evo so at idle the boost gauge read 20 psi but when I hit the gas I only get from 0 to 5 psi of boost. Could it be the fuel pump, boost leaks, broken cat? I need help on this one

 

20 PSI at Idle? I'de say your boost gauge is F***ed.

 

Yeah, 20lbs of boost at idle w/no load on the engine? \ Likely the gauge is faulty as noted by our good member BiggieS

The EvO is running OK? No codes? What year EvO in case we need to move this thread?

Cheers, Joe

 

I would say you have a bad gauge, could you post a photo?