99 challenger 1800 wiring schematic

[hivoltage98]

I'm sure I'm beating a dead horse but my searches are leaving me empty. I would like the schematic for the boat so I can check every connection to get a no spark issue fixed. If I can't fix it I'm going to tear the mpem out and set it on fire, Then rewire the boat to work on 2 separate engine controllers.
Thanks

 

[T-Roy]

I feel your pain. I saw a YouTube vid where a guy used a MSD4255 (I think) and did a MPEM bypass with a RF DESS. Pretty slick install, but he didn't go into much detail on how to do it. There HAS to be a way to install an aftermarket controller so we aren't chained to obsolete and hard to get MPEMs.

 

[hivoltage98]

The site listed below has mpem conversion kits, but they only fit older models. I spoke with the owner and he does have a way to get one engine on a gtx mpem with a wiring kit but they haven't tried it on 2 motors since they are all the accessories attached to the mpem. I'm willing to Swiss cheese the wiring to try it if it will save money and aggravation and have 2 separate engine controllers. SeaDoo MPEM | Used SeaDoo MPEMs

 

[hivoltage98]

I found the schematic. I just had to look in the right place.

 

[snikwad003]

Bolongo did 2 of the MSD boxes in his boat

 

[hivoltage98]

Bolongo did 2 of the MSD boxes in his boat

Need more info please. Any help would be appreciated

 

[snikwad003]

Bypassing 1999 Challenger 1800 Mpem

He starts talking about it on post #15

 

[hivoltage98]

Thanks, I'm gonna check it out!