GL1500 Ran, Rode, Stopped and will not start again - Page 2 - Steve Saunders Goldwing Forums

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post #11 of 33 (permalink) Old 06-03-2019, 05:54 AM
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Your results in post # 10 indicate you have power from the engine shut-off (kil) switch to the ignition coils and the ECM. No BAS issue.....!!

ECM....??????????
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post #12 of 33 (permalink) Old 06-03-2019, 08:57 PM Thread Starter
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Location: Brookline, New Hampshire, USA
Year: 1990
Make: Honda
Model: GL1500
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I am going with the transistor replacement.
Hoping this one will do the trick.
Will report back once I am done and riding again


Thank you for all your guidance.
Tom
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post #13 of 33 (permalink) Old 06-05-2019, 10:39 AM
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Quote:
Originally Posted by BLUTHUNDR31 View Post
...You could try to bypass that fuel petcock to rule out that as a source of your problems before doing much more to the ECU/ECM. Petcock problems cost less to fix than an ECU/ECM.

Sure sounds like the fuel petcock is the problem... I know you rebuilt it, but since you're getting fuel to that point, but not further, then it ain't working.


Try By-passing it... just takes 5-minutes to have your answer of whether or not that's the problem


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KJ6QFZ
Dark Side #590


GL1500, 1990SE, 220k miles
Front: Bridgestone Battlax BT45, 41psi
Rear: Austone 175R16, 50psi

GL1800, 2003, 60K miles [following virginity reconstruction]
Front: Bridgestone Battlax BT45, 41psi
Rear: Pirelli Winter Snowcontrol Series3, Run Flat, 41 psi
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post #14 of 33 (permalink) Old 06-06-2019, 12:48 PM Thread Starter
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Location: Brookline, New Hampshire, USA
Year: 1990
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There is no fuel coming from the fuel pump unless I direct power it from 12volt + side of the battery, or jump the pins on the ECM yellow connector.
I am looking at the transistor.
Thank you will keep the post u
pdated
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post #15 of 33 (permalink) Old 06-06-2019, 03:13 PM
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Quote:
Originally Posted by Tomkaralex View Post
...I will see if I can determine if this bike has the 88-89 relay or not...

My 1990 has a Fuel Pump Relay under the trunk (RIGHT side), and it is controlled by another relay under the seat... located just to the right of the big (30?) amp blade fuse on the cross bar

Also, and I'm not sure on this point, but I believe that the engine needs to be Running in order for the fuel pump to operate... It otherwise does not run with just the ignition turned On



^ Fuel Pump Relay, and location (from the Link someone earlier posted)


^ Item #10: Relay that controls the Fuel Pump Relay




EDIT: Corrected Side for Fuel Pump Relay


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KJ6QFZ
Dark Side #590


GL1500, 1990SE, 220k miles
Front: Bridgestone Battlax BT45, 41psi
Rear: Austone 175R16, 50psi

GL1800, 2003, 60K miles [following virginity reconstruction]
Front: Bridgestone Battlax BT45, 41psi
Rear: Pirelli Winter Snowcontrol Series3, Run Flat, 41 psi

Last edited by ALEX BERECZKY; 06-07-2019 at 01:39 PM.
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post #16 of 33 (permalink) Old 06-07-2019, 01:26 PM Thread Starter
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Location: Brookline, New Hampshire, USA
Year: 1990
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Alex,
Thank you for that picture, Sounds like i have a few more places to dig into and a few more parts to remove from the Bike. I will remove the trunk to see if I match the picture above.
Thank you.
I was feeling confident that once I jumped the ECM BLK/BLU BLK/WHT to power the fuel pump we had determined the ECU or transistor was bad.
Thank you for your continued support. Very Much Appreciated.
Attached Images
File Type: png GL ECM jumper.png (29.1 KB, 0 views)
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post #17 of 33 (permalink) Old 06-07-2019, 01:42 PM
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Quote:
Originally Posted by Tomkaralex View Post
...I will remove the trunk to see if I match the picture above...

No need to remove trunk:
-The Fuel Pump Relay can be accessed by removing Right Saddle Bag.
-The other (#10) relay can be accessed by removing seat.


On a related note, I've heard comments to the effect that that Fuel Pump Relay (under trunk) tends to "Unplug"


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KJ6QFZ
Dark Side #590


GL1500, 1990SE, 220k miles
Front: Bridgestone Battlax BT45, 41psi
Rear: Austone 175R16, 50psi

GL1800, 2003, 60K miles [following virginity reconstruction]
Front: Bridgestone Battlax BT45, 41psi
Rear: Pirelli Winter Snowcontrol Series3, Run Flat, 41 psi
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post #18 of 33 (permalink) Old 06-07-2019, 02:44 PM
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HMMM, , , I wasn't aware that the '90 had a fuel pump relay, ,just the 88-89 had the fuel pump relay under the trunk.


The parts list for the '90 shows relays as in Alex's post, but the parts list shows them as Starter relay, NOT a fuel pump relay. There is NO fuel pump relay listed in the parts list for the '90. It sure doesn't hurt to check the relay, , ,but I have my doubts that its for the fuel pump.
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post #19 of 33 (permalink) Old 06-07-2019, 04:02 PM
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Quote:
Originally Posted by BLUTHUNDR31 View Post
HMMM, , , I wasn't aware that the '90 had a fuel pump relay, ,just the 88-89 had the fuel pump relay under the trunk.


The parts list for the '90 shows relays as in Alex's post, but the parts list shows them as Starter relay, NOT a fuel pump relay. There is NO fuel pump relay listed in the parts list for the '90. It sure doesn't hurt to check the relay, , ,but I have my doubts that its for the fuel pump.

Perhaps I'm mistaken about the Name for it:
-Parts List calls it: DIODE, REVERSE, 31710-MT8-003
-Ebay calls it: Fuel Pump Relay


Regardless, I'm not sure if it directly affects operation of the Fuel Pump or not. However, I can say that my 1990 will not start with it unplugged... this applies to either of the 2 "relays" that I earlier referred to. To put it differently, if you unplug the Relay (under the seat), then the Relay/Diode under the trunk won't work, and the bike won't start.
This Liability bothered me enough to physically re-locate the relay from under the seat to over to/next-to the battery... so that I could more easily check/replace it on the road, by only having to pop-off the side-cover.


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KJ6QFZ
Dark Side #590


GL1500, 1990SE, 220k miles
Front: Bridgestone Battlax BT45, 41psi
Rear: Austone 175R16, 50psi

GL1800, 2003, 60K miles [following virginity reconstruction]
Front: Bridgestone Battlax BT45, 41psi
Rear: Pirelli Winter Snowcontrol Series3, Run Flat, 41 psi
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post #20 of 33 (permalink) Old 06-07-2019, 05:04 PM
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Honda updated the ECM in 1990.

The 1990 - 2000 ECM's power the fuel pump (not a relay).

If you check the Honda schematics you will see that the 1988 - 1989 ECM has four (4) connectors. The 1990 - 2000 has one (1) connector.

If you check the 1988 - 1989 Honda fiche list you will see it uses the four (4) connectors. The 1990 - 2000 uses the one (1) connector.

Reference the items # 22 and # 23.....under Fuel Tank.......!!

I would trust Honda more than ebay on this........!!!!
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