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International Automotive Technicians Network
Re: MAF and high fuel trim
Posted to Technical Discussion Forum on 6/12/2013

Lewis,

Thanks, yes, I am seeing one strange PID for output volts B2S2 ........the longer the engine operates the lower the voltage on this sensor falls. First 10 minutes of operation the sensor is near steady as B1S2 at aprox. 600mV...........later it moves ... Login to read more.