Denso Alternator Installation

fcm42000 said

i just bought a similar alternator and the circular plug for it, my question is do i have to use my voltage regulator still? i hear people hooking the sense wire directly to a constant hot (starter relay), if this is the case the green wire off the v/r is not being used, that gives me the impression this alt is internally regulated, but i didnt think it was.....? confused..

i have a newer style (vr)

Click to expand...

They are internally regulated. Re-read the original post. You REMOVE the old Mopar regulator

The new one has three wires

(in the original example)

1 BATTERY

2 voltage sense, yellow. Hooks to a "solid" battery connection, such as starter relay stud

3 energize, blue, hooks to your original blue Mopar field wire

I DO NOT know about these new Denso's but in the case of the older Delcos (which hook the same way) you MUST put a series diode in the energize wire (in place of the idiot light) to keep from occasionally blowing up diode trios

In the example below, of the older Delco, they "cheat" on the sense wire by hooking it to the alternator stud. SOME of the newer Delco regulators ("one wire) are indeed hooked up this way

http://www.gondtc.com/~blweltin/Bob/AlternatorHarness4.jpg