i cant get my rpms higher than 3000 i have replaced the iacv and the fitv whats wrong with my car

1992 HONDA CIVIC
240,000 MILES
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CHRIS2012
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i cant get my rpms higher than 3000 i have replaced the iacv and the fitv and also cleaned the throttle body i have checked for limp mode nothing seems to work whats wrong with my car
Jul 4, 2012 at 2:27 AM
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ASEMASTER6371
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bad cat converter not allowing the engine to breathe

Roy
Jul 4, 2012 at 2:32 AM