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Dan, Technician
Category: Mazda
Satisfied Customers: 24584
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Mazda Millenia S: I have a 2001 mazda super charged v6 millenia

Customer Question

I have a 2001 mazda super charged v6 millenia and it won't go over 50 mph or 4000 rpm
Submitted: 1 year ago.
Category: Mazda
Expert:  Dan replied 1 year ago.
Hello, my name is***** not going over 4000 rpm is a common symptom of a clogged catalytic converter. You can completely remove front oxygen sensor from exhaust to relieve pressure, if that allows rpm to go past 4000 you know the converter is clogged. Let me know if you have more questions or if there is anything else I can do to help. .Thanks.