S2000 alternator issue--looking for help!

[BusaNostra]

Due to some health problem, was not able to finish my project on time this summer. However,

I fired my Westfield with S2000 engine yesterday. Glad the engine runs with minor electrical problems.

 

The Honda S2000 alternator is not charging. If anyone out here know how to fix this issue, kindly help.

 

The honda has 4 wires at the alternator. According to the book...

White/blue --- indicator light to the dash (this one is easy). This is the only wire I used besides the

big wire that goes to the alternator to the positive post of the battery.

Unfortunately, if you don't hook up the rest of the wires, the alternator will not charge. The ecu controlled

the ELD (give signal to the alternator to charge).

 

Black/yellow goes to fuse 6 (battery power)

The last two wires are too complicated for me.

White/green control the signal to ECU

White/red input signal to ECU.

I did not use the last 3 wires. Still investigating how to hook up these wires back to my ecu.

 

If complicated, the last resort is to buy a single wire alternator (maybe GM has one). Done and over.

However, I want to use the stock Honda alternator if I can.... for reliability.

If you know something in this area, kindly help.

 

 

[manik]

Impressive, and well done!

 

Some pictures of the install over on the WSCC forums:

http://boardroom.wscc.co.uk/cgi-bin/ikonboard.cgi?act=ST;f=3;t=67497

 

 

 

tm

[WestTexasS2K]

Busa are you not using the the factory harness? All you should have to do is hook the large black yellow to a switched battery 12v. All other wires remain in the factory harness. There should be no need to cut and splice those.

[BusaNostra]

Yes I'm using the stock harness but I cut it awhile back.

I spliced it back and now its charging !!!

 

Thank you very much.