Andrew Young
Looking at Vauxhall Tis,the wiring is as follows
red/blue is the 12v supply from fuel pump relay.(but originates as a red/white wire to engine harness connector.
Brown is ecu ground to pin 9 at ecu
blue/white is signal to ecu pin 6
red is supply from pin 7 of ecu.Also feeds camshaft and map sensor.
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Vauxhall VX220 Z20LET 2004 - Mass air flow circuit low input fault # - Alan Truesdale April 2, 2014, 3:02 am
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on April 2, 2014, 8:15 am, in reply to "