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Forum namePerformance/Engine
Topic subjectAlternator overcharging big time.....
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=53901
53901, Alternator overcharging big time.....
Posted by DSMRoadster, Jun-25-03 05:31 PM
instead of 13.2, it's like 16.5 to 17.2. I've spoken to nitrouseclipse about it and ironically he had the same problem. His wire was grounding out. I haven't checked my wires yet, but let's hope that it was just a grounding problem. Anyone else had the same problem?

edit: if you're wondering I did get a CEL 41 and 46 which is overcharging and alternator harness fucking up.
53902, RE: Alternator overcharging big time.....
Posted by MetalJim, Jun-25-03 06:23 PM
Yeah, that shit can happen if the regulator goes bad.


95 Eclipse RS : 5 speed
15.943 @ 86.48mph
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html
53943, RE: Alternator overcharging big time.....
Posted by DSMRoadster, Jun-26-03 09:42 AM
it just happens at random sometimes also. I've checked the wires and there's nothing shorting out. I even tightend the alternator belt a little bit more. What regulator are you talking about Jim?
53944, RE: Alternator overcharging big time.....
Posted by Michael_97RS, Jun-26-03 09:55 AM
Unfortunately our regulator is part of the alternator. If you do a search Armond rewired it to accept a stand alone regulator. He was getting to low a voltage at idle and other running problems, wired up the regulator and problem solved.



15.9 @ 86.7mph

Una Salus Victus.

Mods List:
http://highlander.dsmpower.com/sig.htm
53948, RE: Alternator overcharging big time.....
Posted by Chamuko, Jun-26-03 10:14 AM
is this on his site or can I search the forums?
53975, RE: Alternator overcharging big time.....
Posted by Nitrous_RS1997, Jun-26-03 07:32 PM
Our voltage regulators are part of the ECU, not the alternator, they are external. least i know my 97 is that way. if it isnt the wires, have your alternator checked at a place like Advanced Autoparts. if it checks out fine, then it is most likely a bad voltage regulator, and you will need a new ECU. if you need the ECU, ive got you hooked up. :-)
www.TeamKLR.com
1997 Silver RS
Wiseco 8.8:1 Pistons(back to low compression!)
Eagle Rods
T3/T4 Turbo
Custom FMIC
Greddy Exhaust
440's
Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)
53979, RE: Alternator overcharging big time.....
Posted by DSMRoadster, Jun-26-03 08:06 PM
Couldn't find any expose wires. So I drove around today and the car was fine. ???. But I'm not doubting that it won't happen again. So if it does happen again, my only explanation is the ECU. I have a 97 RS too. If there is a write up to rewire for a 97 I'd like to know where to find info on it otherwise I'll get an ecu from Nitrous.
53990, RE: Alternator overcharging big time.....
Posted by Michael_97RS, Jun-27-03 05:17 AM
http://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=29260&mode=full



15.9 @ 86.7mph

Una Salus Victus.

Mods List:
http://highlander.dsmpower.com/sig.htm
54086, RE: Alternator overcharging big time.....
Posted by DSMRoadster, Jun-28-03 09:40 AM
but will that work on 97 models? I wouldn't mind if voltage was lower, but 16+? Wouldn't look to nice if that battery explodes. It hasn't happen again, but I believe underhood temp has something to do with it. I haven't driven around long enough the get the temp up.
54126, RE: Alternator overcharging big time.....
Posted by Nitrous_RS1997, Jun-28-03 08:30 PM
That states that its part of the ECU doesnt it?
www.TeamKLR.com
1997 Silver RS
Wiseco 8.8:1 Pistons(back to low compression!)
Eagle Rods
T3/T4 Turbo
Custom FMIC
Greddy Exhaust
440's
Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)
54143, RE: Alternator overcharging big time.....
Posted by XtremeRS, Jun-29-03 08:04 AM
As far as I know, the voltage regulator is part of the alternator, BUT the ECU controlls the regulator's output. Usually when the V regulator goes bad, you get very high voltage. This means you need a new alternator, as I have never heard of an ECU failure when it comes to alternator ouput voltage, but I suppose anything is possible. Def have that alt checked out somewhere that tests them, like Autozone,ect..You prob got that CEL for voltage because the ECU is having problems with controlling the voltage regulator, most likely because the reg is bad.
54148, RE: Alternator overcharging big time.....
Posted by SPL_Eclipse, Jun-29-03 11:03 AM
on a side note...call around to make sure that the auto parts place CAN check the alt. autozone told me they couldnt test mine, but ive heard of others having thiers tested at advanced auto et al. it would suck to get the alt. out only to find out you cant get it checked out anywhere.
131210, RE: Alternator overcharging big time.....
Posted by TeamJC, Jul-28-10 11:58 AM
My car is doing the same thing. Did you ever find the problem?
131211, RE: Alternator overcharging big time.....
Posted by unknsldr, Jul-28-10 12:35 PM
my car also did the same thing
131212, RE: Alternator overcharging big time.....
Posted by unknsldr, Jul-28-10 12:36 PM
I eventually converted to standalone and got an external regulator
131217, RE: Alternator overcharging big time.....
Posted by TeamJC, Jul-28-10 04:38 PM
How did that work out for you and where did you get it from?
131219, RE: Alternator overcharging big time.....
Posted by RoninEclipse2G, Jul-28-10 07:04 PM
Bring out your dead!

Clicky on the Symtech link at the top of the page, they make an external regulator so that you don't have to replace the ECU if the built in regulator goes bad.

If you didn't understand that, the regulator is built into the ECU. pretty stupid design IMO