That line is only for the tach reading on a 90 computer I believe.

I know the 90 vehicle with the carb can be 'nuttered' and the only extra
wires needed to play with on a YJ vs CJ are the tach before the computer
can be tossed in the trash.

His volt drop readings indicate a really bad connection at the starter
relay post. It's dirty.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"L.W.(ßill) Hughes III" wrote:
>
> Sure is, you see the line being bleed off to the computer.
> First, I would establish whether the alternator was good by
> disconnect it's ignition wire, and charging it directly from the
> battery, it should then read at least fourteen volts. From then on it's
> trial and error without the equipment, the guy that's gets the bucks and
> is trained to read.
> God Bless America, ßill O|||||||O
> http://www.billhughes.com/
>
> Dirty Ditch Dawg wrote:
> >
> > Thanks Bill, its the same one i have in my chilton book,
> > but al least now i can blow it up and see the print without squinting,
> >
> > do you know if any of this is controlled by the jeep computers?
> > how do i test the relay??
> > if the relay is bad can it be a cause?
> >
> > what the hell would you guys do,,next??
> >
> > johnp