Whilst driving my Car went into reduced power and displayed the 'spanner' symbol to indicate a fault. I restarted the engine and it drove normally for about half a mile and then reappeared. After the restart the engine diagnostic light came on and remained on so I booked it into the garage.
The Dignostic printout at the garage read
Mass Air Flow Sensor
Voltage Supply Circuit.
The garage told me that they had checked the part and that it was okay and that it drove okay when they tested it and they gave the car back to me. I assume that they just took it down the road.
I have just driven to work and on fast acceleration on motorway the fault has reappeared.
Does anybody have experience of this problem and know what the possible solution is?