Maf sensor bench test?

[pug306driver]

Has anyone any info for a bench test for the MAF sensor, like reistance checks etc......

[DeeTurbo]

They aren't that simple to check.

You could compare two at constant revs say at idle and 3k rpm via the volts out on pin 5 for the flow or the volts on pin 1 for the temperature volts out.

[pug306driver]

Thanks, got that info from a HDI file in info, real good info..........will be checking 12v supply ( suspect make and break contact in wires...... ) and earth and outputs...........awaiting turbo oil return pipe, £40 from pug with discount!!