[edwardmk]

Originally Posted by DeeJ

It's not a sensor. It is the connection to the heater element in the PCV valve. The PCV's on cars before VIN #050 were unheated, but yours being much later should be. A blue connector attaches to a feed loom element going forward to a black connector on top of the front of the rocker cover, just in front of the oil filler cap. Effectively only 2 wires in it, a power feed and ground lead. Yours looks like it has no connector at all plugged in that forward connector either, logical, since that bit of the loom has gone AWOL apparently. Should not cause any problem, since you don't live north of the Arctic Circle, and not expected to ice-up the PCV, even in a British summer. Will not affect running at all and will not cause any error codes. I don't think even a T4 would notice it wasn't plugged in... but not original.

David

Thanks again for that info. I have to confess the hesitation on acceleration disappeared when I remembered to re- connect the MAF sensor. Already posted on the ‘Wally’ thread