G7 Computers
- Thread starter Kurt0721
- Start date
Andrew Shadow
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If you are referring to the code 25/26 problem you need to specifically ask them about that failure and what they do to fix it.
Every ECM repair facility that I have looked at or read about on here ends with one of two scenarios;
1- Sorry we can't fix that particular failure.
2- We disable the electronic circuit that turns on the FI light when a code 25/26 is encountered.
The code, and therefore the failure, is still there but the FI light no longer illuminates to warn you.
Neither of the above is a fix in my opinion, so you might want to check to see exactly what they do.
Every ECM repair facility that I have looked at or read about on here ends with one of two scenarios;
1- Sorry we can't fix that particular failure.
2- We disable the electronic circuit that turns on the FI light when a code 25/26 is encountered.
The code, and therefore the failure, is still there but the FI light no longer illuminates to warn you.
Neither of the above is a fix in my opinion, so you might want to check to see exactly what they do.
Exactly , Disabling the circuit that reports the problem is like putting tape over the light. But it does make you wonder if they disable the reporting circuit does it preclude it from going into Limp Mode.? I have replied to their Email asking this . why do you need this with a 2009?
Andrew Shadow
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I think that it does nothing more than hide the problem, which is worse in my opinion. Other ECM repair facilities have stated that they can't fix this particular problem or it's symptoms. The best that any of them have claimed is to be able to prevent the FI light from illuminating. I base my suspicion on this.
I don't have this problem and I don't need this repair. I simply keep abreast of this saga.
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The reason why I asked about yours is that I was at an MSTA (Motorcycle Sport Touring Assn.)(I don't
know if it is popular in Montreal)) function last year and ran across a 2008 with FI issues, and have heard about it with Goldwings. I was wondering if your 09 had issues. I watched a youtube video of a guy with a Goldwing who isolated the ECU wires to disable the reporting . Honda does not seem to be taking much of interest in this issue. If it's maintenance then one should be able to buy a replacement ECU without a Mortgage.
I read those BBS reports , but I wanted to ask a this group if anyone had tried it. They claim 54,000 ECU's fixed If the numbers really are that high there will be a complaint or two.
Our ECU's were made by Keihin. Keihin had a large manufacturing plant in Greenwood Indiana which was bought by Hiatachi Astemo. then closed. Oddly enough they made ECU's in that plant don't know if they were our ECU's I was hoping there were some ST owners in Greenwood who had first hand knowledge of Honda ECU's. I bought some books on vehicular computers they started with German and French Auto mfg and have evolved. but each Manufacturer does it their own way. so long as it conforms to ISO standards.
Ive cleaned my 5 way, re-aligned my snorkels bought new batteries changed knock sensors and wires. If you get on it you can take it to 80 MPH without FI intervention and tach as high as you want. If you ease up it goes off at 4200 RPM. I still love her though.
What they claim is not 54,000 ST ECU's or even motorcycle ECU's, just computers in general. Many auto ECU's are repairable . In some early ECU's the foil that drive a circuit melts from an shorted or over loaded circuit and they just solder in an overlay. That is not the problem with the ST.
Andrew Shadow
Site Supporter
So far no problem with my 2009.
This more commonly affects 2008 and older ST1300's. There have been reports of this failure on 2009 and later model years but few and far between, and they seem to be not very well documented. This may be due to changes made to the ECM that took effect in the 2009 model year or it might be a function of time, and as time progresses there will be more 2009 and later failures. Who knows?
I have read a few posts of people who have tried the Goldwing fix on the ST1300. I have not read of anyone who claimed that it was successful. I also read that the Goldwing fix either doesn't work on Goldwings or it is a temporary fix and the problem eventually resurfaces. Until such time that Honda is willing to release the technical documentation of their ECM's to repair shops we are kind of stuck if the problem is not being caused by something other than the ECM.
John Emailed me promptly stating they would repair , not disable the ECU. I may try it if I end up with an 800 lb paper weight with wheels you can tell me I told you so.
My kids used to play a Nintendo 64 where you had to pull the game cartridge out and blow on it to make the game work has anyone tried this?
My kids used to play a Nintendo 64 where you had to pull the game cartridge out and blow on it to make the game work has anyone tried this?
You know. CANBUS can be glitchy enough as it is . My GS had an issue where the brake system went on the fritz. I went round and round replacing the front and rear brake calipers , rotors and pads as well as the front and rear micro switches and was just getting ready to buy a new Brake Servo. when a Honda Mechanic pulled the back tail light cover off and found the brass bulb holder had pushed out of the circuit board . He pushed it back all was well.
I dont think I am going to find a fix like that on my ST.
CANBUS is just a communication line. It just lets all the modules on the bike to talk to each other that's all.
Andrew Shadow
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If you do go ahead make sure to report back here regarding the results. If they really can fix this problem there are many people who would like to know about it and I suspect that they will get quite a few requests to do so.
Before I would send it to them I would want to know for certain whether they are really fixing the problem or hiding it. When this problem is caused by a defective ECM there is no fault with any part of the knock sensor system. The problem is that the ECM thinks that there is a fault where there is none. I reiterate this because every other ECM repair shop that I have read about here and elsewhere to date have not been able to fix this particular problem with an ST1300 ECM. The best that any of them have been able to offer is to prevent the FI light from illuminating when the problem occurs so that you don't see the FI light. Fixing it means that if there is a true and legitimate fault detected in the knock sensor system in the future the ECM will recognize it and will illuminate the FI light and will display the correct fault code to match the defect as it was designed to do.