So, new coil and ignition module, 8v GTi still running rough. I want to test the hall sender next. From Haynes 5B/4, section 5 "Hall sender - testing":
Point 4 says: Pull back the rubber boot from the switch unit and connect a voltmeter between terminals 6 and 3.
However, only pins 1,4,2 and 6 are connected to anything. Pin 3 is unused. This is borne out by Wiring diagram 72 (Page 12/56, part N41). I'm no expert, but I'm never going to see the voltage I'm looking for...

Does anyone know which pins I should connect my voltmeter to? This must be a misprint in Haynes, right?
What a frustrating day...
