Hello,
I want to mess around the timing on my 1.9 TD, AAZ (advance it a bit), but I can't figure out how the timing solenoid (if it is a solenoid) on the bosch pump works. I've been searching on google, but there is very little info about it.
The timing advance/retard is electronicaly controlled and the piece in the engine has two wires going to it, both live, showing around 5 volts to ground. I've read that you can advance the timing by putting 12 volts to that piece, but where if there are 2 live wires? Do I ground one of them, or you can regulate the timing by varying voltage between them or on only one of them?
Can somebody please explain me what that thing is and how it works, or post me some link about it...
Thanks.
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