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2003 Toyota Corolla Question: catalytic changed and engine light comes on. code po402, what does this mean?



tiredofit, Plainsboro, NJ, June 29, 2014, 22:24

different mechanics give me different answers for a changed catalytic converter. had it dx. and engine light still comes on. The last mechanic stated that i needed a double headed converter and I checked auto part store and it stated that I only needed a single headed converter and not a double headed converter? can you clarify this, please?

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  • Answer #1

    June 29, 2014, 23:17

    P0402 is not the converter , it;s EGR system. P0420 is for converter below efficiency.

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