GL1800A Not starting, No Codes


Information and questions on GL1800 Goldwings (2001-2017)
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rdearing1
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Joined: Thu May 07, 2020 12:42 pm
Location: Port Orchard, Wa
Motorcycle: 2003 GL1800A

GL1800A Not starting, No Codes

Post by rdearing1 »



I have a 2003 GL1800A that recently developed an issue with starting. Four months ago, I came out from work and my bike would not start. It would crank and not start. After getting it home by trailer, I tore it down and found no wiring issues, the battery was good. It sat for a week while I researched and on a lark, I attempted to start it and it worked. It ran fine for a couple of weeks and then decided not to start again. Same symptoms and I let it sit for a few days and it started up. I have been through a few cycles of this and cannot figure out what to do or check.

This week, I went for a ride, got home and the next day it wouldn't start. I tore the bike down again, inspected the wiring, cleaned the air filter. While it was torn down, I tried to start it to no avail. Then I decided to try a shot of starting fluid and guess what, it started and ran fine. I took it for a long ride, came home and parked it. Now it won't start again. I really need help because I am at a loss.

With yesterday's start with a shot of starter fluid, I was inclined to change the fuel pump. I have checked it before and thought it was fine, but I am just confused.

Again, here are the symptoms:

1. No performance issues once it is running
2. No F1 codes
3. I can hear the fuel pump relay.
4. No wiring defects.
5. Battery is fine.
6. All accessories work with no issues.
7. It starts with no issue when warm.
8. Issue has become more regular.


Techdude2000
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Location: Lexington, KY
Motorcycle: 2004 GL1800

Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

You said there’s no codes, have you checked this with the Honda pocket tool or just going on no FI light when it’s running? When it fails to start, have you cranked it for more than 10 seconds in neutral with the sidestand down to see if it will throw a code for the no start condition?
rdearing1
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Joined: Thu May 07, 2020 12:42 pm
Location: Port Orchard, Wa
Motorcycle: 2003 GL1800A

Re: GL1800A Not starting, No Codes

Post by rdearing1 »

The very first time at work, I got an F1 code for IAT sensor. That was changed and it has never thrown the code again. I do not have the pocket tool.

I just tore it down again. It wouldn’t start so I gave it a shot of fluid and it fired right up, no rough idle or stall. I waited 30 minutes and it started right up with no fluid.
Techdude2000
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

rdearing1 wrote: Thu May 07, 2020 9:41 pm The very first time at work, I got an F1 code for IAT sensor. That was changed and it has never thrown the code again. I do not have the pocket tool.

I just tore it down again. It wouldn’t start so I gave it a shot of fluid and it fired right up, no rough idle or stall. I waited 30 minutes and it started right up with no fluid.
Ok, I suspect the code for the IAT was actually the CKP sensor code. IAT is a 9 and the CKP is a 19. The IAT won’t keep the engine from starting, so I think the code may have been misread. A CKP, 19 code will keep it from starting and they tend to be intermittent when they decide to fail. I wouldn’t change the CKP without a solid confirmation with a 19 code. Maybe it will fail to start again and you can get a code out of it.
rdearing1
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Joined: Thu May 07, 2020 12:42 pm
Location: Port Orchard, Wa
Motorcycle: 2003 GL1800A

Re: GL1800A Not starting, No Codes

Post by rdearing1 »

Is that the crank position sensor?
Techdude2000
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Location: Lexington, KY
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

rdearing1 wrote: Thu May 07, 2020 10:48 pm Is that the crank position sensor?
Yes, you also said the battery is good, but have you put a voltmeter on it while you’re cranking it to see how low it’s voltage drops? The reason I ask, is the battery has to crank the engine but it also has to keep at least 11.1V on the system or your FI/Ignition relay will drop out, killing the FI system. Your symptom of it restarting easily after it starts the first time, points to a marginal battery level that once started the alternator tops it up so it starts easily the second time around and won’t start again after sitting for an extended time again.
rdearing1
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Location: Port Orchard, Wa
Motorcycle: 2003 GL1800A

Re: GL1800A Not starting, No Codes

Post by rdearing1 »

I checked the starting voltage during one of the previous events. It was above 11.1 but I will check it again today.

I’m also going to see if I can get it to pull the last code if it starts.
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keithg64
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Re: GL1800A Not starting, No Codes

Post by keithg64 »

Have you checked all your ground wires and cables. Here is something to at too.

viewtopic.php?p=333029#p323254
It's not what you buy, it's what you build.
Techdude2000
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

keithg64 wrote: Sun May 10, 2020 7:38 am Have you checked all your ground wires and cables. Here is something to at too.

viewtopic.php?p=333029#p323254
This is good to know. We haven’t seen this on the other boards I visit.
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Asphaltmaniac
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Re: GL1800A Not starting, No Codes

Post by Asphaltmaniac »

It starts just fine when warm. So fuel system troubleshooting in my 06 manual. Engine cranks but wont start. (No DTC and MIL blinking)
One of the things you can check, is whether the Intake Air control Valve is acting up. Sticking on occasion? It has a gasket and if perhaps its leaking there may be junk interfering with the valve movement?
Or maybe the Fuel pressure regulator is acting up? That has vacuum hose from the TB and maybe its getting crusty.
Hoses, gaskets , rubber or whatnot start to go bad resulting in small leaks that will only get worse and worse.

Unfortunately the air box has to come out but you sound confidant in working on your bike.
MHC
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Motorcycle: 2017 GL1800

Re: GL1800A Not starting, No Codes

Post by MHC »

I have 2017 that was/is doing the same thing, it is under warrenty and spent most of last summer in the dealership. With the “help” from Honda engineering the last part replaced was the
“Bank angle sensor” I have not had the problem since getting it back
Techdude2000
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

MHC wrote: Wed May 13, 2020 5:38 pm I have 2017 that was/is doing the same thing, it is under warrenty and spent most of last summer in the dealership. With the “help” from Honda engineering the last part replaced was the
“Bank angle sensor” I have not had the problem since getting it back
That should have been an easy fix. The FI light should have been failing to come on when it failed to start. When you turn on the key, the FI system performs a self test and looks at the sensors it can read without the engine running and it turns on the FI light for approx. 1.5 seconds and runs the fuel pump during this time to prime the rails to ensure pressure for starting. A defective BAS will kill the FI/Ignition relay and without it, the FI system would be dead, no FI light or fuel pump priming.
MHC
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Re: GL1800A Not starting, No Codes

Post by MHC »

Good idea, but after 8 other parts including an pcm the Honda engineers decided the BAS was the next dart to throw at it!
Techdude2000
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

MHC wrote: Wed May 13, 2020 8:03 pm Good idea, but after 8 other parts including an pcm the Honda engineers decided the BAS was the next dart to throw at it!
That’s really sad that no techs knew enough about the system to do simple logical troubleshooting. Sorry you had to go through that. I would have gotten it narrowed down with a couple of test over the Internet. At least it’s fixed... Now, what is the OPs cause? That’s the question and unless he’s not hearing the pump or seeing the FI light come on with the key, his is going to be fun to narrow down.
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GoldWingrGreg
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Re: GL1800A Not starting, No Codes

Post by GoldWingrGreg »

MHC wrote: Wed May 13, 2020 8:03 pm Good idea, but after 8 other parts including an pcm the Honda engineers decided the BAS was the next dart to throw at it!
In your case, and on 5th gens from 2006-17, they have add'l grounds at the back of each head. Also, the ground at the reverse cable bracket is larger for far greater contact surface under 2 bolts instead of just one.

The issue of a poor battery ground is far more likely on the 2001-5s. They only have a single-bolt ground as shown in the 3rd picture with no add'l grounds at the back of each head.
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Techdude2000
Posts: 341
Joined: Mon Jun 13, 2011 10:11 pm
Location: Lexington, KY
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Re: GL1800A Not starting, No Codes

Post by Techdude2000 »

Asphaltmaniac wrote: Sun May 10, 2020 1:24 pm It starts just fine when warm. So fuel system troubleshooting in my 06 manual. Engine cranks but wont start. (No DTC and MIL blinking)
One of the things you can check, is whether the Intake Air control Valve is acting up. Sticking on occasion? It has a gasket and if perhaps its leaking there may be junk interfering with the valve movement?
Or maybe the Fuel pressure regulator is acting up? That has vacuum hose from the TB and maybe its getting crusty.
Hoses, gaskets , rubber or whatnot start to go bad resulting in small leaks that will only get worse and worse.

Unfortunately the air box has to come out but you sound confidant in working on your bike.
Ok, when it won’t start, are you hearing the fuel pump actually run when you first turn on the key? Or are you only hearing the relay for it?


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