Cat and battery light just came on. wont go off....

Ted · Post by **Ted** » Thu Apr 10, 2014 9:55 pm

Is the alternator a soveriegn one ?

Post by **RattyMcClelland** » Thu Apr 10, 2014 9:56 pm

Ted wrote:alternator a soveriegn

A remanufactured Lucas Alt is the new one.
My dead alt that make the battery light go out is OEM Honda.

Post by **Thebusofwoe** » Thu Apr 10, 2014 10:12 pm

When the light is on what voltage is it putting out?

Post by **Thebusofwoe** » Thu Apr 10, 2014 10:22 pm

You need to follow pages 80-81 of the 5th gen manual chap. Do you have a spare under bonnet fuse box? Because it has a built in ELD unit and can cause faults with voltage/charging light on

Post by **RattyMcClelland** » Thu Apr 10, 2014 10:29 pm

Thebusofwoe wrote:When the light is on what voltage is it putting out?

The lights is on from the moment you turn the engine on and dont go out if you rev it to 3k. Wont rev it higher because its not remapped.
But at idle voltage is 14.2v on the alt and battery and when revved it does drop to 12.8-13.5v.
When all electrics on loading the alt voltage it 14.2v still but drops with revs.

When i put the old alt in the light goes out. But voltage is then below 12v only at the battery. Only 2-3v at the alt.

Thebusofwoe wrote:Do you have a spare under bonnet fuse box? Because it has a built in ELD unit and can cause faults with voltage/charging light on

No i dont.

Post by **RattyMcClelland** » Thu Apr 10, 2014 10:31 pm

Thebusofwoe wrote:You need to follow pages 80-81 of the 5th gen manual chap.

Which manual is that? The big one i have is sectioned not pages in PDF form. Engine electrical section?

Post by **Thebusofwoe** » Thu Apr 10, 2014 10:36 pm

Sorry section 4-24. Yea the main 5th gen manual. Engine electrical.

Post by **RattyMcClelland** » Thu Apr 10, 2014 10:39 pm

Thebusofwoe wrote:Sorry section 4-24. Yea the main 5th gen manual. Engine electrical.

Yer already looked at that. Seems to keep bringing me to the wires shorting however light goes out with old alt.
It must be a fault with the new alternator sending the ELD a wrong signal puting the light on, despite there not being a problem.
Well we will see soon enough.
When i 1st put the new alt on everything was fine and it ran goo even with engine running. No lights.

Post by **Thebusofwoe** » Thu Apr 10, 2014 10:42 pm

Ok pal, get that other alternator on and let us know

Post by **RattyMcClelland** » Wed Apr 16, 2014 10:10 pm

New alternator arrived.

Sucess.

Car starts, charges and no light on the dash.

So i took it for a drive......

until...............

NOTHING.... yay.

Wait. THe supercharger is a bit rattly.

Looks like i may need to change the coupler inside it. Best open her up and tickler her insides.