Nelly the 916 Strada from 1994 runs a P8 ECU with two pickups with the one for the phasing just like the SPS hence it having pick-up markers on the flywheel as well as the one on the camshaft drive cog that sits on the shaft behind the water pump and runs across the engine to the lower cambelt toothed pulleys.

just thought I would add my P8 wiring spreadsheet

Skids,

NGK iridium CR9EIX sound familiar?

Ray.

Yes Ray they certainly do, NGK need to do a special version of it with a deeper Hex on it for the plug spanner. would work well on a 998 but would be a bit of a problem on the 999 as the plug-cap-coils bolt to the cylinder head so a longer plug would be problematic.