Ignition Woes (Weird Hall Sender Voltage Outputs)

Hi,

I'm trying to get my 2.0 AAD fired up after swapping out the original 1.6, I'm using all of the kjet parts from the 1.6, which was running fine prior to the swap. I'm not getting a spark from the coil.

Last night I established that the ignition leads are on the limit, so will be replacing them, and I've since read on the forum that the coil needs an earth from its bracket to the head, so I'll add that at the weekend, although there wasn't one there previously.

However, what is really confusing me is the voltage outputs from the Hall Sender. Following the guide in the Haynes manual, multimeter on term 3 & 6 of the ICM (+ve to term 6), and then turning the engine by hand, I'm getting negative voltage readings, -5.4v and -12.08v. To me this is suggesting that the polarity is wrong, I've double checked all of the wiring and it matches the wiring diagrams, so doesn't looks like there's an issue with crossed wires, or is the Haynes manual wrong in the way round it tells you to attach the multimeter to the ICM? Reversing the multimeter leads does give the same voltages, but +ve instead of -ve. Either way, the values are way out from what the Haynes manual states, 0.7 to 1.8 to battery voltage. I presume I need to be looking at changing out the distributor/hall sender?

Cheers,
Dave

From the Dizzy green/white there is 0-or-11V depending on where the mask is to the sender.

The Bentley has a better number on the electrical testing.  IIRC the ICM shoudl have 12V.

Multimeter on ICM plug, terminals 2(-) and 4 (+) is 12v. On the Hall sender connector, outer terminals, there's 9V, guessing this should be nearer 12v?

Will give all terms a clean, add the earth to the coil and checked all other earths and retest.