2003 1800A won't Start - Steve Saunders Goldwing Forums

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post #1 of 34 (permalink) Old 08-17-2016, 03:23 PM Thread Starter
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Location: Osler, Saskatchewan, Canada
Year: 2003
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2003 1800A won't Start

Hi to everyone I have a 2003 1800A GL that won't start Has no FI light on bulb test Turns over fine Fuses are all good FI relay engages But no fuel pump relay engaement Fuel pump is good and so is relay. Power and grnds to ECU good I have replaced ECU but still no start Need help with this one please.
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post #2 of 34 (permalink) Old 08-17-2016, 04:20 PM
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The pump only runs for a couple seconds when you turn the switch on then when cranking or running. Have you checked for power at 2 points on the fuel pump relay, key on, black/yellow wire? If good there the relay is grounded by the ECM, black/brown wire, try grounding it.

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post #3 of 34 (permalink) Old 08-17-2016, 07:22 PM Thread Starter
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yes did that pump runs but still won't start good psi 55 . ECM is not grounding relay also just test wire to ECM is good not grounded or shorted to voltage
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post #4 of 34 (permalink) Old 08-17-2016, 08:56 PM
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You say no F1 light when you turn it on? Do the other lights, tail lights and gauges work? I suspect the crank or cam position sensor might be the problem but you need that light working to get a code.

With no God over the state, the state then becomes not the defender of liberty but the definer of liberty.


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2010 1800 pearl yellow

If I disagree with you it's simply because you're wrong.
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post #5 of 34 (permalink) Old 08-18-2016, 01:12 AM
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It sounds like you have done lots of work but it might still be worth asking if you are absolutely sure the powers and grounds are good at the ECM? Kind of sounds like the ECM is not coming to life?

Mike

Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.
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post #6 of 34 (permalink) Old 08-18-2016, 09:26 AM Thread Starter
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Join Date: Jun 2010
Location: Osler, Saskatchewan, Canada
Year: 2003
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Model: 1800A
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Yes no FI light and all other lights work fine I retested all power and grnds at ECM again after I replaced it I have a service manual for 2003. It shows me B21 BLK/YEL wire from FI relay and A12 BLK/YEL wire from FI relay as both being the power wires. A8 GRN and A9 GRN A20 GRN as the grounds all good. Tested Fuel injectors resestance is 11.7 to 11.5 good. Iam thinking something is keeping the ECM from coming alive. I will try to test all components on ECM circuit today for shorts to ground or voltage. Thanks very much for the help so far.
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post #7 of 34 (permalink) Old 08-18-2016, 11:29 AM
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I feel your pain. I was putting a Holley fuel injection system on a truck one time and ran in to a crazy deal like you are facing. To make a very long story short, it turned out when they crimped a wire end on, at the factory, there was too much insulation on the wire. Instead of crimping to the wire most of the crimp was to the insulation. It would run on occasion then not. Drove everyone crazy.
Might check for spark just for grins and chuckles. Just another hint maybe????

Mike

Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.
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post #8 of 34 (permalink) Old 08-18-2016, 11:43 AM
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Dumb question. Are you cranking the starter with the bike in neutral? Not with the clutch in? Is the bike on the centerstand and sidestand up? or down?

(Think it is a dumb question because it would still do the light check either way)

EDIT: Are you checking voltage with a meter. Not a test light? Also are you testing with a load on the wire. You can easily get 12 volts with no load, only to have voltage drop to zero when you plug it in/ put load on the wire. That is if you have a bad connection. Make sure you have 12 volts and the ability to carry a load and still have good voltage. Are you backprobing the terminal while still in the circuit and under load? Not unplugging to check?

Mike

Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.
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post #9 of 34 (permalink) Old 08-18-2016, 01:22 PM
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and one more dumb question:

is the FI light bulb good?

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post #10 of 34 (permalink) Old 08-18-2016, 02:06 PM
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Quote:
Originally Posted by AZgl1800 View Post
and one more dumb question:

is the FI light bulb good?
It's an LED so probably is good.

Mike

Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.
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