Was:HELP - 8V92 will not start NOW It runs!

[Larry Kehler]

OK Thanks for all the help to everyone that made suggestions.

Today I talked to the old series 92 guru at Detroit Diesel about what
could cause one bank to not fire. He said it could be several things,
a clogged fuel hose, a clogged restricter valve or a blown injector fuse.

I checked the hose for that side by running a long screwdriver though
it. Then found the two inline fuses attached to the center battery.
I followed the wires to the center DEC plug. That plug has two green
wires that go to the battery ground lug. Four orange wires that merge
into two wires that go to the inline fuses. One fuse is the curb side
bank injectors power and the other is the street side bank injectors
power. I wire brushed all the connectors and checked the DEC plug
wires for 12 volts.

I found that someone had cut a wire off the engine that looked like a
ground, so I added a ground wire from the engine to the ground bar
just for good measure.

After purging the air, the old 8V92 fired up and I pushed the high
idle switch for that great purrrrr.

This difficult situation was a real learning experience. I feel so
much more comfortable now with the engine. While I have worked on a
lot of engines in the past, the 92 was a mystery that worried me a
lot. I now know what I would do if the beast quits on the road some
time. I somehow gained a real understanding of the fuel and DEC
system. Just knowing that if the check engine goes out after the 10
second start-up, the DEC is likely OK is a great help. I was so
worried that I had cooked the DEC.

I really appreciate knowing that all you guys are here to make
suggestions and send diagrams when we need them. Thanks again and I
am ready to help with some suggestions now on the fuel and injectors
system.

Larry Kehler
94 PT-40 WBDA "BAM"
St Louis