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P0404 OBD-II Trouble Code: Exhaust Gas Recirculation Circuit Range/Performance
P0404 code definition Exhaust Gas Recirculation Circuit Range/Performance What the P0404 code means P0404 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas...

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Check Engine light, code P0404.
Having the engine code is a great first step to getting your Pontiac Montana running up to speed again. This engine code is reading EGR, which stands for Exhaust Gas Recirculation. The EGR’s job is to redirect a measured portion...

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