An ammeter should have brown and brown/white wires going to it and be between your alternator and solenoid.... It should also read both ways from the centre + and -
A voltmeter goes from something to earth, reads one way, and 14 ish volts would be good high charging volts for your battery
Try turning your ignition on... If the meter comes up to 12/13 without the engine running it's a voltmeter (and may rise to 14+with the engine running)
An ammeter will sit (pretty much) with the ignition turned on.... Go negative if you put the headlights on.... Go really negative when you hit the starter... And come back up when it's running (pretty much to the middle if your batteries good or into the plus if it's putting back what you just took out)
K
PS... welcome Toucan... I also have a crossflow engined car.... Gradually being reduced to a chassis before coming back better than ever hopefully
Last edited by Image; 30/12/19 10:38 PM.