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P0402

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P0402 OBD-II Trouble Code: Exhaust Gas Recirculation Flow Excessive Detected
P0402 P0402 code definition Exhaust Gas Recirculation Flow Excessive Detected What the P0402 code means P0402 is an OBD-II generic code that the engine control module (ECM) has detected indicating the engine exhaust gas recirculation (EGR) valve is flowing too...

Related questions

Question
After 'check engine' light, diagnostic revealed P0171 and P0402
The first code, P0171, is an indication the engine is running lean. This code can indicate anything from clogged air and fuel filters to problems with O2 sensors and mass air flow sensors to intake gaskets. The other code,...
Question
My car doesn't pass emissions because the catalyst system is below threshold, and the exhaust gas recirculalation is insufficient.
Hi there. The Engine Gas Recirculation (EGR) valve could be sticking or full of deposits from the exhaust system. Remove and clean the EGR valve before replacing it to see if the system will begin to operate. The oxygen sensors...
Question
Shaking when in overdrive
Hi there. Check the fuel system and see if the fuel injector for cylinder number 2 is malfunctioning. The code P0402 means that the EGR is not functioning and the code P0174 means that Bank 2 is lean, which is...
Question
PO402 Excessive gas recirculation code
Hi there - while a cracked exhaust tube of any sort is a problem that needs to be addressed, I don't think it's related to your P0402 code. P0402 indicates excess exhaust flow into the intake - probably caused the...

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