99 GS No Beep, No Start, have tried several suggested things. No 5A fuse blown

[USC Justice]

OK. I have a 99 GS that doesn't run.

It was in the lake and stopped suddenly and would not start or beep etc. (beeper is a sometimes thing anyway). Looked at the fuses on the MPEM and the 5A was blown. Test further and am told that the Stator is toast. Ordered a new one from OSDparts.com. it came in, and I disassembled the front box, removed and replaced the stator. Reassembled everything and get nothing when plugging in the DESS key.

I have looked at the gauge (just a fuel gauge on this one with oil light), and nothing happens when the start button is pressed 5 times with the key off. Nothing happens when the key is plugged in as well.

I have tested the MPEM by swapping it into my 02 GTI LE. It fires up just fine. I swapped the GTI LE MPEM into the GS, and absolutely nothing happens when the start button is pressed.

I have tested the Battery and it is sitting with a full charge. I have checked the fuse in the rear electrical box and it is not blown. there is a little corrosion around the bolts where the coil attaches to the rear electrical box.

I have checked all the wires going into the plug on both sides of the rear electrical box and there is no corrosion or other issue there.

I have taken a screwdriver and jumped across the starter solenoid. The engine turns over then.

I have checked the wires coming out of the stator a couple different times and they match up. ground wire from plug on stator is also correctly attached to the stator cover.

After all that, really just wondering what it is that I might be missing. it's a bit frustrating to say the least.

Thanks in advance.

 

[Dr Honda]

Unless I missed something... you found the problem.

The problem followed the MPEM. Your MPEM is dead. A shorted charging system can do that.

 

[Seadoobuddy]

....but the MPEM from the problem ski (99 GS) works in the 02 GTi.

 

[USC Justice]

Tony,

Good morning. I appreciate your reply. I'm certain that it is not the MPEM. As I mentioned up above, I swapped that MPEM into my 02 GTI LE, and that ski fired up right away. I also put my MPEM from the GTI LE into the GS, and nothing at all happened. Put it back in the original ski and everything is great again.

As I was thinking about it this morning when I got up, I was wondering a couple things.

1. Do the yellow wires matter coming off the stator as to which position they are in the plug (obviously as opposed to the clearly marked black and red and solid black wires). The bad stator had a yellow and a yellow/black wire. The new stator just had two solid yellow wires.

2. Is it possible that the starter solenoid is creating my entire problem?

What else might I be missing? I also tried running a ground wire from the grounds on the coil to the negative terminal on the battery with no change.

Thanks much,
Donald

 

[LouDoo]

I was confused also, it sounded to me that it was the other way around. Anyway try shorting the two main terminals on the top of the solenoid, see if the ski will start, if it doesn't it's probably the starter.

Lou

 

[USC Justice]

Lou,

Thanks for your response also. It was kinda late when I was posting last night. I put the screwdriver across the two posts of the starter solenoid and it turns over when they are jumped together. If the starter solenoid was dead, would that present with the same condition I am seeing?

Thanks,
Donald

 

[LouDoo]

No, if the solenoid was bad and you shorted the terminals the ski should start, so it's not the solenoid.

Are you getting a spark?

Lou

 

[USC Justice]

The GS does absolutely nothing when the key is plugged in (my understanding is that the MPEM provides the spark signal to the coil and thus to the ski).

When the key is off, and the start button is pressed 5 times nothing happens either. Fuel gauge doesn't activate, and oil warning light does not come on.

Wondering if there is some sort of corrosion I'm missing at the rear box or there abouts, and thus no power going to the front of the ski where the MPEM is.

 

[Seadoobuddy]

Same problem as mine....solve it by checking wire from solenoid to front box. One connector wasn't making good contact.

http://www.seadooforum.com/showthread.php?44901-No-power-at-all&p=270012&highlight=#post270012

post #46 is the solution for me.

 

[USC Justice]

Thanks,

I will check that this evening. wonder which wire to trace and how many connections there are between back of the ski and the front.

 

[sunk96]

I am having the same problem with mine but if i take the solenoid fuse out for a few seconds the gauge will light up and it beeps but then loses all power any advice on that? Thanks

 

[USC Justice]

OK. Ski is sorted and running again.

Sunk96 - I have a feeling this will be the solution for yours too. The wires inside the plug to the starter solenoid were corroded. I swapped the plug (just two wires - one ground, and the power that goes out to the plug on the top of the rear electrical box) with a spare that I had in my project ski, and first try everything works again.

Now I have to see about sorting out the project ski by replacing that plug. Ah well it will be over the winter before I get around to getting a motor for that one. (98 GTI with a blown motor for 200 bucks).

By the way, anyone have an opinion on the SBT versus Fullbore discussion on motors? I have one motor from SBT, but I'm curious about the build quality from Fullbore, and if they can squeeze just a little more power out.

Thanks for all the replies.

 

[sunk96]

Thanks! I will check my wires this evening

 

[hobojoe]

USC Justice, any chance you could take a pic of the problem wire?

 

[USC Justice]

Sure, I can snap one this evening and upload. It is pretty obvious when you pull the plug off the starter solenoid though. it just looked bad.

 

[USC Justice]

OK, here are pictures of the offending plug that created the problem.

 

[Seadoobuddy]

YUP, that's your problem alright.
Glad you found it.