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Hello, I am having a problem with my 03 WRX I bought it in Feb and on my way home the check engine light came on, I have changed the IAC 3 times bc that is one of the codes that keeps coming up as well as P0457 EVAP leak and P0507 idle control RPM high it was idle omg at 1100 and now it’s down to 850 and I bought a new gas cap which made that code go away and I also changed the crank position sensor and that code is gone as well but I can’t seem to figure out why the IAC keeps popping up as well as the p0507 and P0457 code.. if anyone has had a problem like this what was the over all problem and how did you fix it . Thank you
 
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