Help with 2002 F12X honda aquatrax ECU - Honda Motorcycles - FireBlades.org
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post #1 of 7 Old 07-29-2013, 11:21 AM Thread Starter
 
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Help with 2002 F12X honda aquatrax ECU

I have a Code 25, Knock Sensor. I R&R'd Knock Sensor with a new one and still have Code 25. I have also replaced 4 spark plugs. Is a new ECU the next step? I also have a 2005 R12X Aquatrax. Can I swap ECU's? They have different part numbers and different connections. Can I replace the wiring harness in the 2002 with the 2005 harness and use the 2005 ECU? Any other suggestions?
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post #2 of 7 Old 07-29-2013, 3:31 PM
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Re: Help with 2002 F12X honda aquatrax ECU

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Originally Posted by kurtmih View Post
I have a Code 25, Knock Sensor. I R&R'd Knock Sensor with a new one and still have Code 25. I have also replaced 4 spark plugs. Is a new ECU the next step? I also have a 2005 R12X Aquatrax. Can I swap ECU's? They have different part numbers and different connections. Can I replace the wiring harness in the 2002 with the 2005 harness and use the 2005 ECU? Any other suggestions?

Are these motorcycles?

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post #3 of 7 Old 07-29-2013, 4:38 PM Thread Starter
 
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Re: Help with 2002 F12X honda aquatrax ECU

no they are not motorcycles. They are Honda watercraft. I saw your post in a watercraft forum where you stated that you were very familiar with Honda watercraft ECUs. My ECU problem is further complicated by the fact that the 2002 and 2003 turbo watercraft ECUs are on back order and have been for a while and the 2005 Honda watercraft that I also have has a different ECU part number and wiring harness, however they are available from Honda immediately. The option to R&R the ECU and wiring harness from my 2002 and install a 2005 ECU and wire harness. Any experience with this swap or any other suggestions?
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post #4 of 7 Old 07-29-2013, 4:45 PM
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Re: Help with 2002 F12X honda aquatrax ECU

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Originally Posted by kurtmih View Post
no they are not motorcycles. They are Honda watercraft. I saw your post in a watercraft forum where you stated that you were very familiar with Honda watercraft ECUs. My ECU problem is further complicated by the fact that the 2002 and 2003 turbo watercraft ECUs are on back order and have been for a while and the 2005 Honda watercraft that I also have has a different ECU part number and wiring harness, however they are available from Honda immediately. The option to R&R the ECU and wiring harness from my 2002 and install a 2005 ECU and wire harness. Any experience with this swap or any other suggestions?

I've never posted anything about watercraft anywhere.
I would assume the systems are fairly similar to bikes, but not having any experience with watercraft I have no idea what other functions the ECU might deal with.
What does "R&R'ed" mean?

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post #5 of 7 Old 07-29-2013, 4:50 PM Thread Starter
 
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Re: Help with 2002 F12X honda aquatrax ECU

Remove and Replace
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post #6 of 7 Old 07-30-2013, 5:23 AM
 
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Re: Help with 2002 F12X honda aquatrax ECU

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I've never posted anything about watercraft anywhere.

*cough*

Maybe the OP could try PWC Forum?

If the bike isn't braking properly, you don't start by rebuilding the engine.
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post #7 of 7 Old 07-30-2013, 7:26 AM
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Re: Help with 2002 F12X honda aquatrax ECU

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Originally Posted by Sky91 View Post
*cough*

Maybe the OP could try PWC Forum?

Great detective work Sky, but I did mention back then that I wasn't familiar with them :-)

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