P3028 - 008 - Implausible Signal

[HPsauce]

Originally Posted by IT

So, the final, and least likely culprit is the wiring. Its a perfectly intact, unmolested beautifully looking loom, so it made no sense - but - I did find that the VW Tourag had an Technical Service Bulletin out regarding a similar issue that suggested that the connector on the Throttle body, having only 6 wires, was prone to a bit of movement and could over time cause problems.

So having replaced the connector (and by the sound of it a length of loom leading to it) was there any detailed examination to see what had failed?

Things that spring to my (relatively inexperienced) mind would be:
- Contamination/corrosion in the connector(s) that mate to the throttle body.
- Wear/looseness in these connectors.
- Poor contact between the cable core and the connector due to manufacturing problems or wear.
- Connector insecure in the plug body.
- Failure in a cable core.

I'm sure there are other things to look for as well.