Your computer has detected an error with the the MAF (mass Air Flow) sensor. In conjunction with the inlet air temperature (IAT) sensor the combination is often referred to as the Air Mass Meter. Are you experiencing a 'surge and slow' effect on engine speed at idle, maybe the idle is erratic and almost stalls at times? The MAF is found as part of the air ducting just after the air filter box. There is an electrical connection to the top of it. Disconnect and dismantle the duct assembly to free the MAF unit. The MAF is a heated foil that sits in the air stream. As intake air flows over the foil it has the the effect of cooling. The cooling achieved plus the measurement of the actual temperature of the air doing the cooling by the IAT gives enough information to the engine electronic control unit (ECU) to estimate the volume of air entering and to allow the ECU to set an appropriate injection cycle to provide the correct fuel air mix. Spray the MAS with electrical cleaner, this is non residue cleaner so do not use anything harsh like carb choke cleaner or oily like WD40. Try to make no physical contact with the foil. (the IAT is bead thermistor sat in the middle of wire near the MAS foil). Once everything has air dried reassemble and reconnect. If the fault has been fixed the error code will be removed after a few restarts.
How muc to fix 2001 Volvo p1103 code
SOURCE: 2001 volvo v70 how to
P1103 - MAF Sensor In Range But Higher Than Expected
Mass Air Flow sensor voltage indicates a higher air flow than expected failure. Replace it.
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