ECU ERROR READING 86 GL1200 SEI


Information and questions on GL1200 Goldwings (1984-1987)
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westy57
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ECU ERROR READING 86 GL1200 SEI

Post by westy57 »



I finally learned how to read code and where ECU is. Sometimes hot and hit bump bike hick-ups and now always when riding for more than an hour in hot weather and shutting off and let sit for 20 min it reads W solid and 0 blinking on the LED which manual says Right pressure sensor. I've been able to turn key on and off and eventually start. I'd like to check connectors 1st and clean or tighten can some one guide me to there location? hopefully with a photo?


old.wing
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GL 1200 SEI

Re: ECU ERROR READING 86 GL1200 SEI

Post by old.wing »

See Manuel page 10-22 and 10-23,
ThePB Sensors are located below the false tank above the ignition coils.
If you need more information, please send me a pm and your email. I am not able, to import photos. Sorry.
Bert
👍 Bert

GL 1200 Std and GL 1200 SEI
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

mike_b_westfall@yahoo.com HELP!!! I wanted to clean plug at ECU and I believe I'm beyond my skill level! Do I have to take the whole rear end apart to get it out? Is the blue thing on the side the plug and how does it disconnect if it is.Image Iwanted to make sure I didnt find any bear spots in the wiring and read to check connectors at ECU so far I cant find or remove any connectors.HELP PLEASE!
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old.wing
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Motorcycle: GL 1200 STD
GL 1200 SEI

Re: ECU ERROR READING 86 GL1200 SEI

Post by old.wing »

See the pics, remove the seat, remove the two M6 nuts on each side below the rack, one is left of the LED‘s, the other one is on the opposite side and loosen the M5 Screw in the middle and below the rear of the rack. Then carefully pull the ECU to the front of the GL. B. Rbb
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👍 Bert

GL 1200 Std and GL 1200 SEI
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

I would have to take out tail light to remove. I just jigged everything to see if I could short it. I was unable to disconnect plug which I guess is the blue thing on the right as seated on bike. Can I bypass the right pressure sensor or can you tell me where the connector for it is?
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

Can someone tell me a replacement part for PBR .Must I buy a used one? Is it the same as a 85 limited?
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Rednaxs60
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Motorcycle: 1985 GL1200 LTD
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2012 Suzuki DL1000 VStrom (sold)
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: ECU ERROR READING 86 GL1200 SEI

Post by Rednaxs60 »

Before going any further, I'd recommend taking the seat off, there are 4 nuts holding the ECU in place as well as one on the back end - you do not have to remove the taillight, just loosen the screw. Look in the Supplement for direction.

You have to be able to see 5 indicators. You may have an intermittent Ns fault. This error code is similar to the Pb sensor error code but the " W" is on and "0" and "3" should be blinking. Not beyond your capability.

If you have to replace a Pb sensor would recommend a change out of both with a Suzuki sensor: Brand: Denso.
Type number: 100798-5630. Suzuki orderingnumber: 15620-35F00.
Suzuki description: Sensor Boost, IAP (Inlet Air Pressure) sensor.

have had this installed on my '85 Limited Edition for the last 3 years and works fine. Operating profile is almost an exact match for the old OEM sensor.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

I did notice some of the LED was hid by the bracket. So there maybe 3 lights lit? I got it to error 5 times today but what puzzles me is just turn key off and back on then starts immediately.I switched connectors from left to right as per the manual you sent me but it did not change the code to 1 it remained 0 blinking.So if I see W solid and 1 and 3 blinking it will be the one by the timing belt. I think I'll dremel the bracket while I'm back there
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Rednaxs60
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Re: ECU ERROR READING 86 GL1200 SEI

Post by Rednaxs60 »

You're on the way to being a good SE-i DIY backyard mechanic. Just took me 5 days to take the 1200 engine out of the frame. Takes my time, keep the work area clean, and everything happens. No need to rush the work.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

Can't get it to error now. Can to tell or show me where the connector is for the Ns sensor. I dont know what is ref as a shelter either.
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Rednaxs60
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Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
2014 Can-Am Spyder RT LE
1995 GL1500 SE CDN Edition (sold)
2012 Suzuki DL1000 VStrom (sold)
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: ECU ERROR READING 86 GL1200 SEI

Post by Rednaxs60 »

Pic attached. Not easy to get at with the front fairing on. Just in behind the frame post:


"When you write the story of your life, don't let anyone else hold the pen"

Ernest
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

Thank you. It won't act up now. Went on a long hot ride expecting it to error and now won't. I'm gonna ride it till it starts messing up again. Wish I could rely on this thing but if I have to take off front fairing to replace Ns sensor I'm gonna let someone else more capable fix it. I've had the radiator off before when I had to solder a hole in it. Maybe this winter I'll get inspired.
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Rednaxs60
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Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
2014 Can-Am Spyder RT LE
1995 GL1500 SE CDN Edition (sold)
2012 Suzuki DL1000 VStrom (sold)
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: ECU ERROR READING 86 GL1200 SEI

Post by Rednaxs60 »

Good winter project, but if you have had the rad out to fix, not too much more to do. Taking the front fairing off is intimidating, but once removed, lots of room. 4 bolts, 4 connectors, and some cabling, air hoses and such. The connectors are the wiring harness from the frame to the fairing. These can be difficult, the right side connector can be removed by hand. The three on the left side need two long common screwdrivers, one with a wide blade. Order of removal front/top/bottom. If you do this, I believe I have pictures of the connectors, of course I do - front fairing is off at this time, will take new ones. Good to have a second set of hands to help remove/install front fairing - not heavy, just awkward. Removal, an hour (after other [plastic removed) - taking your time. First time, give yourself an afternoon - don't rush it. Taking my time, doing other life issues, I would schedule 5 days to change out the Ns sensor. Can be done faster, and have done so. Good luck, keep the rubber side down.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest
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westy57
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

Thank you again you've been a great help! I love this bike but don't place alot of faith in it. I have nothing to lose since it was given to me. I will have 3 months during winter time to think about it. I was a tank mechanic in the Army 40 yrs ago but this thing is a different ball game. 1st time changing the tire it took me an hour to alien the shock back in. If I wanted a bunch of sensors I'd get a Mercedes!
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Rednaxs60
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Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
2014 Can-Am Spyder RT LE
1995 GL1500 SE CDN Edition (sold)
2012 Suzuki DL1000 VStrom (sold)
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: ECU ERROR READING 86 GL1200 SEI

Post by Rednaxs60 »

This is a Civic/Prelude on two wheels. Lots of stuff packed in a small area. The 1500 and 1800 are a forest of wires as well. It is a very reliable motorcycle, but have to get the bugs out, it is after all a 35 year old bike, nothing lasts forever. If there's a miserable weather window coming, that's the time to do this work. I'd change the Ns sensor regardless of how the engine is operating - great peace of mind and will change your mind on reliability. This sensor has raised its ugly head, and it's one of the sensors that will shut the engine down. Electrical gremlins are an annoyance, and never repeat when you want.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest
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westy57
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Joined: Sat Oct 03, 2015 7:03 pm
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Re: ECU ERROR READING 86 GL1200 SEI

Post by westy57 »

I change back seals in shocks then the air compressor quit. Runs but no air pressure. Change front seals but must have pit or something in shaft cuz year later they leak out after an hour. The rim started to shimmy real bad and found it wallowed out the bearing race. Lucked out and found a replacement but not chromed on EBay. Solder stator wires as soon as I joined this site.Ran so good I found a well preserved stock seat and purchased and then after replacing 3 china R/R I got an Electrosport that lasted 3 years and just now thanks to this site bought an OEM one and solder all wiring (P.O. had house wire caps on them) The bike had 51,000 on it when it was given to me and now has 70,000 I really think I cold fall in love with this bike but it's gonna have to love me back just a little more. Wish it had an adjustable windscreen other than that it's a great bike. Your an asset to this forum and not only have you been a great help you've been a great inspiration.So TY again Red!
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