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dick Verzillo

Problem: 2005 Subaru WRX with stage 2 93 octane map installed 3 years ago. The idle when cold goes to 2400 and takes a while to come down. Hesitation thru the gears. From a stop bring the revs to lets say 4000 the revs do not stop but continue on to 4500 without giving it any gas. Its been checked for vacuum leaks, MAF taking off and cleaned o2 sensors checked iac valve, first cleaned then replaced.
when the iac was cleaned the car ran perfect for 3 days then screwed up again. when the iac was replaced the car ranperfect for 5 days then screwed up again. The Subaru dealer says they havent got a clue whats wrong. need help...thank you
Dick Verzillo

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