Resolved where is the voltage regulator on 420A

[karnold0216]

Where is the voltage regulator on a 96 eclipse 2.0
i have replaced a bad battery tested the alternator and it was working
my battery wont stay at full charge
my battery light on the dash is one
but when i turn the car on its not on at first than a little bit later it turns on

 

[hhuricane]

It is part of the alternator.

 

[steve]

On a 420A it's inside the PCM not in the alternator like on the 4G63's.

 

[drooseph]

buy new cables. had this same problem...replaced everything and the last thing i did was the cables
and it completey fixed it

 

[karnold0216]

where can i get new cables at?
and where is the PCM?

 

[steve]

where is the PCM?

Have you tried looking in the 420A forums? Even new 2G N/T members can post there so they get 420A specific answers.

420A Bolt-on Tech - DSM Forums

 

[drooseph]

where can i get new cables at?
and where is the PCM?

Any parts store normally has a cable replacement kit. Just make sure to brush off the battery terminals and tighten everything down really well.

 

[19Eclipse90]

where can i get new cables at?
and where is the PCM?

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[karnold0216]

oh ok thanks pictures help alot
to replace the voltage regulator do i have to buy a new computer or do i have to take it apart and replace it that way

Oh okay, thank you. Pictures help so much.

Now, to replace the voltage regulator do I have to buy a new computer or can I just take it apart and replace the voltage regulator.

 

[19Eclipse90]

To help you with your issue, it appears that there are two ways of handling the issue of a bad voltage regulator in a 2G 420A car. First is to replace the ECU (PCM). The other is to purchase an external regulator and install it which in turn bypasses the internal regulator; all in all a much more cost effective solution. Unfortunately I don't know the details on something like that, but here are a couple threads I found for you:
http://www.dsmtuners.com/forums/420a-engine-management/296266-ecu-houses-voltage-regulator-420a.html
http://www.dsmtuners.com/forums/420a-bolt-tech/241612-couple-problems-hope-there-easy.html

 

[drooseph]

did you try cables? and did you check to your voltage at idle and compare it to when under load.

 

[dsmtun3r98gst]

Any parts store normally has a cable replacement kit. Just make sure to brush off the battery terminals and tighten everything down really well.

yeah A universal kit. Most auto parts only sell those universal wires; your fine with those as long as you get some that are the same length or really close to it. You don't want to get some that are too long and not too thin.

Hmmm I would have guess that 420 eclipses have a regulator integrated into the alternator. I guess I learned something new today .

 

[karnold0216]

I haven't tried cables, yet. I am waiting on my check but I will soon.
So i have to buy a new ECU?
I went to advance and they had a voltage regulator for $150, is that what is in the ECU?

 

[ktgurl87]

you're not reading. how do your battery cables look? are the terminals corroded at all? are they tight? check the OTHER end of the battery cables also. make sure they are clean and nice and tight also. advance sells battery cables with ends already on them in 4 gauge wire (atleast my store does), which should be equivalent or damn close to what is already there. measure where you would need the new cable to go, that is the length you're looking for.

and p.s. - having "fun" with being reported or warned will be fun until you get suspended

 

[19Eclipse90]

I haven't tried cables, yet. I am waiting on my check but I will soon.
So i have to buy a new ECU?
I went to advance and they had a voltage regulator for $150, is that what is in the ECU?

You obviously didn't look at the links I posted last time so I'm done helping you. Good luck with your issues.

 

[karnold0216]

You obviously didn't look at the links I posted last time so I'm done helping you. Good luck with your issues.

ok kool
that fine with me not like you was even helping
that one guy didn't even have the same problem as me

i haven't really got to look at the other ends but the ends on my battery have new terminals when i got the new battery
oh and i just noticed i left something out
but it doesn't happen often and its been awhile since it happened
but ill be driving and for a second it would act like it lost power and then my check engine light and battery light go off then the check engine light comes one than a few seconds later the battery light comes back on

and p.s. - having "fun" with being reported or warned will be fun until you get suspended

so what if they suspend me ill make another account
its not like i have only one email address
I'm not trying to be a ass on here but some people just need to be slapped

 

[snowborder714]

We have tools in place to track this and if you do, both accounts will be banned. Easy as that. Keep your smart ass comments to yourself and enjoy your vacation. Hopefully when you come back you'll realize you can't get away with anything on here. No, we don't try to be dicks about things like grammar and spelling, but when you blatantly ignore our requests to improve, then things start to happen.

 

[Jc14025]

I was really confused when I first looked at this post as I was having the same exact problem with the same exact car, a '96 RS. Autozone tested my battery while running and said that the voltage regulator was bad. My stepdad had called a mitsubishi dealer mechanic and they said it was in the alternator. I ended up having to take it to a mechanic and they just replaced the alternator and its fuse. So I don't know which ones have it in the ECU, but all I know is that the 1996 RS 420a has the voltage regulator in the alternator.