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Thread: ultra 130 DI Greek to me
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05-01-2014, 12:57 PM #1
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- Jun 2009
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- 317
ultra 130 DI Greek to me
just got this DOA
wont do anything.start,power display up,trim wont operate.
key is on,lanyard in place
checked the 2 fuses and they are good.
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05-01-2014, 02:35 PM #2
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- Jun 2009
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- 317
update
compression is 125+ on all 3
jumped solenoid to check
also checked injector voltage while cranking and it starts at battery voltage and goes to about 28V while cranking
but I get no electrical action
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05-01-2014, 03:54 PM #3
No electrical action meaning? The voltage at the injectors sounds right. Should go to 45 volts while running.
I would first trace the circuit to figure out why the start button doesn't crank the engine.
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05-01-2014, 04:16 PM #4
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- Jun 2009
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- 317
I dont have any manuals on this,just wondering if the start circuit is run thru that damn EMM.
but dont understand why I get no display and the trim does nothing.
Is there another fuse somewhere other than next to the solenoid ?
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05-01-2014, 09:11 PM #5
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- May 2008
- Location
- Elephant Butte New Mexico
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this will be some real work. factory manual required, or at least the correct wiring diagram.
test light with assorted alligator tips.
a methodical test method.
start and the back and work your way forward.
should be resolved in two hours or less.
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05-01-2014, 11:19 PM #6
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- Jun 2009
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- 317
found a wiring diagram for STX so hope thats close enuf
Ill get my test light out and start probing.
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05-02-2014, 09:38 AM #7
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- Jun 2009
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wheres the main ground connection at?
I suspect that connection is bad
I backprobed the start button and got the display to come alive
when I first backprobed it the test light glowed on the downstream side of it without pushing button
This would indicate a backfeed because of a poor ground.
While probe was in that position I pushed the trim button and test light got brighter.
this would mean more load increased the backfeed.
I can get the starter solenoid to work if I supply a ground to it.
Things are getting interesting....
The diagram Ive got for the STX is about useless because alot is different.
but Im sure the EMM and injector wiring is close if I need to diagnose that.
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05-02-2014, 10:23 AM #8
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- Jun 2009
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- 317
GOT IT!
connector at battery was poor inside the terminal for the accessory power
I love this stuff called corrosion block!
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05-02-2014, 01:46 PM #9
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05-02-2014, 08:49 PM #10
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- Jun 2009
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- 317
no but at least I have display and trim power
it will turn over and fires if I put fuel down the throttle bodies
puts out 45v to the injectors while running on prime but wont stay running
gonna check the fuel pressure tomorrow
Cant understand why this doesnt have a shrader valve for checking pressure.
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