Alternator Wiring

[marlin]

Hi all,

Can use some help. Had a 2001 alternator that is controlled by the stock ecu. This does not work with the new ecu so want to put in a 1997 alternator which has an internal regulator. I know that 2 wires need 12v, 1 with a lamp and resistor the other just 12v + the line to the battery of course. Questions, what is the size of the resistor needed to go with the incandesant bulb and which wire goes to which terminal of the plug? Oh, it's a MX-5 by the way.

Thanks for any assistance

Marlin

[knights_templar]

Marlin there is a pull up resistor in the loom, just make shore the alternator has the feeds it needs and it should work. You may actually need to remove the resistor, but that for another reason, or you can use your original alternator and it an after market controler