Question about 2001 Toyota Sienna

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2001 toyota sienna, 6cyl 3l, must accelerate very slowly from stop or van seems to bog down badly, may take 2 miles to get to 55 mph, going up bridges it bogs down very badly, diagnostics indicated catalytic converter clogged. it has 3 converters, 3-way converter system. can the converters be removed and solve the problem? must they be changed because of sensors? how do i troubleshoot if really converter problem or sensor problem?

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Brake loose connection between cat and exhaust manifold , it will allow exhaust gas to go out before cat , and see if it's restore the power on the engine.
If it does then your cat is clogged.
If not it's also might be Throttle Position Sensor , or Mass Air Flow Sensor.
You can't remove cat , you have to replace it if it's bad. Cat is a part of Emission control system.

Posted on Aug 29, 2010

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Posted on Jan 02, 2017

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