Question about 2001 Honda Accord

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Mauricio Vasquez Problem whith code p0420 my honda accord 2001 motor 2.3lt V-tec Ulev

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Here are some possible causes.

Air leaks at the exhaust manifold or in the exhaust pipes.
Catalytic converter damaged or has failed (deteriorated).
Front O2 Sensor older (aged) than the rear O2 Sensor (O2 is lazy).
Front O2 or rear O2 is contaminated with fuel or moisture.

Posted on Jan 29, 2009

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What does a po1259 code for a 2001 honda accord 3.0 litre, v-tec b-1 sys. failure mean


Here is the explanation from engine-codes.com

P1259 Honda Description
The VTEC system activates the VTEC solenoid valve by command from the powertrain control module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that is installed in the valve system to switch valve timing between Low and High. The PCM monitors oil pressure conditions in the hydraulic circuit of the VTEC mechanism according to the VTEC oil pressure switch downstream of the VTEC solenoid valve. If there is a disparity between oil pressure condition in the hydraulic circuit that is determined by the PCM command, and the oil pressure condition that is determined by the status of the VTEC oil pressure switch, the system is considered faulty and a DTC is stored.

Read more: http://engine-codes.com/p1259_honda.html#ixzz3aiInXy9j

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I have a PO 420 code on 07 accord. Does that mean my catalytic converter is bad?


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1 Answer

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1 Answer

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