Rich

Bosch pump?

New ECU - cheap. Immobiliser removal is easy and cheap.

Oil is usually the gasket failure or weepage. Work out your own bodge for it. Word of advice, spark plugs from a cold engine is hassle, taking them out of a warm engine isn't any hassle. Thermal expansion and all that crap.

Wind farm.

Immo off on a TDI is easy stuff. Throw money away mentality and flog it after.

SDI isn't good for the environment.

Feel free to bore away.

If water had gotten into the ECU you would really know about it. A lot more than a throttle problem. I'd replace a wiring loom before I would replace an ECU and even then I wouldn't do that.

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I'm more vwfest....

Time to find another?

Get some velcro chess pieces for the floor.

Too far for you.

Have you tried the resynch method? Google will tell you more.