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Sae P1XXX Diagnostic Trouble Codes

Fuel and air mixture and additional emission regulations 

SAE- DTC DTC text Corrective action
P1009 Air mass meter 1/2 implausible signal from load detection -- Check Mass Air Flow (MAF) Sensor -G70- and Mass Air Flow (MAF) Sensor 2 -G246- MASS AIR FLOW SENSOR, CHECKING 
P1073 Mass Air Flow (MAF) Sensor 2 -G246- Signal too small -- Check Mass Air Flow (MAF) Sensor 2 -G246- MASS AIR FLOW SENSOR, CHECKING 
P1074 Mass Air Flow (MAF) Sensor 2 -G246- Signal too large  
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