2004 Daytona 955i ECU first connect - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 29 (permalink) Old 08-20-2019, 11:23 AM Thread Starter
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2004 Daytona 955i ECU first connect

So, reading some interesting posts here, I ordered the correct cable, got the TuneECU software. First findings:

- The diagnostics page does not seem to fully load, although I can check TPS which only swings round to 70% when on full throttle
- The Test page does not let me do anything
- Only error I get: P0463 - Fuel level sensor circuit high input - any ideas?!

I'm probably going to give it an updated MAP - I have read and saved the current map.

Still runs very poorly.
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post #2 of 29 (permalink) Old 08-20-2019, 11:48 AM
Grand Prix 125
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Why do you say the diagnostics page doesnít fully load?
Are you sure you are clicking in the right place to start the test? Try clicking on the indicator of the fan test (thatís the easiest to tell if working)
Fuel level is definitely the only error in the log?
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post #3 of 29 (permalink) Old 08-20-2019, 11:59 AM Thread Starter
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After watching a few YouTube clips I can see its working fine, the green LED is flickering, which I thought to mean its still loading, but seems this is normal.

Yep, the fuel sender error looks to be the only one listed. I had the tank out, replaced the fuel filter, filled it right up with fresh Shell 99 and when I was out on it, the fuel light came on after a few miles.

As previously stated, the bike has covered 5300 miles and been sat a while with only mileage to MoT station and back. Hence the tank strip down and fuel filter replacement. Maybe the float in the sender is stuck or something..!
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post #4 of 29 (permalink) Old 08-20-2019, 01:29 PM
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Quote:
Originally Posted by maccers View Post
... I can check TPS which only swings round to 70% when on full throttle ...
That is 'normal' - that is not throttle % open, it is % of applied voltage

Quote:
Only error I get: P0463 - Fuel level sensor circuit high input - any ideas? ... .
Quote:
Originally Posted by maccers View Post
... filled it right up with fresh Shell 99 and when I was out on it, the fuel light came on after a few miles.... Maybe the float in the sender is stuck or something..!
That is a typical problem with this ECU/Fuel sensor combo - there is nothing wrong with the sensor or the float - you will almost certainly find that after the level goes down a bit, the light will go off. It is because at the high level, the sender is at its lowest resistance reading and because of a ground-loop the way it has been wired it creates a false error.
The solutions are
a) Reconfigure the wiring of the sensor to be the same as the Sprint (search for thread on this by me)
or
b) Put a ziptie around the sender board to stop the float rising all the way to the top when it's full (it doesn't care about the actual level other than when it's low i.e. the sender, although it will read resistance according to its position, is only interpreted by the ECU as LOW or NOT-LOW

The latter is what most employ (means draining tank & removing sender)
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post #5 of 29 (permalink) Old 08-20-2019, 03:33 PM Thread Starter
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Ok, great, I'll probably have a go at that - I had the tank off last week empty..!

Been reading a bit on the reset - mines has an O2 sensor so I dont see the adaptation button on the Tune ECU software. Re-applied the correct map anyway. Do I need to do the 20 minute tickover, no touch throttle / wait for fan to kick in thing - or is mines like this:

The fuel system fitted to the above models is adaptive. This means that the engine management system will
self-adjust air fuel ratio (i.e. the mixture setting) to its optimum level in order to ensure differing running conditions do not result in poor running.

During an adaption, the engine management system examines the air--fuel ratio as measured by the oxygen sensor in the exhaust system and, if necessary, makes an adjustment. In some cases, a single adaption may
be sufficient but in others, more adaptions will be necessary.

An adaption take place when all the following conditions are met:

Gearbox in neutral, clutch engaged.
Coolant temperature 80 -- 100 įC
Airbox temperature 21įC minimum
Engine idling for 10 -- 30 seconds
Once adaption has taken place, the settings are retained ensuring that adaption is not necessary every time
the engine is started.

Particularly for new bikes, where the engine has not been run-in, it may be necessary for dealers to ensure adaption has taken place before handing the motorcycle over to the customer. This can, of course, apply at
any other times as well.

To force adaption to take place, start the engine and warm it up until the above conditions aremet, adaption
takes place automatically. Blip the throttle every 30 seconds to start another adaption cycle. When coolant or
airbox temperatures are above or below adaption thresholds, allow the engine to cool or warm-up before
continuing.
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post #6 of 29 (permalink) Old 08-21-2019, 12:28 PM Thread Starter
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Bit of an update... Downloaded new map, all worked ok (saved existing one). Fuses back in - engine started very rough, not been run for a week or so, but right away the engine management light goes out, followed by the Fuel warning light. Also no new error codes - could it really be that simple?

Let the bike idle for way more than 20 mins, got a huge fan on the front of the bike which helped somewhat. Bike cooling fan came on and off a few times. The engine seemed to sound smoother, but I've yet to take for a test run.

The TPS light on the Tune ECU never went to green though, but I have heard this can be ok. I performed a TPS Rest anyway via the test page. Clicked ok, and let the bike run for another 20 mins. Garage very hot by now even with all doors open!! Decided to call it a day and leave it. Left the big fan on, interestingly the bike rad fan carried on when I turn the ignition off. The last temp I saw on the bike and ECU software was 107 deg.

Next thing will be a test ride to see if its smoothed things out any.
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post #7 of 29 (permalink) Old 08-21-2019, 12:53 PM
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Fan staying on or coming on after shut off is normal.
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post #8 of 29 (permalink) Old 08-21-2019, 01:31 PM
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The 20 (or 12 or 15 as it has also been referred) min 'tune' is not valid on your bike - it is as you described in the latter part of your post above.
Your Fuel Light problem WILL come back, next time you fill the tank.
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post #9 of 29 (permalink) Old 08-21-2019, 03:55 PM Thread Starter
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Ordered new sender gasket from local dealer. Will be on me to do list. Will road test and see if main issue is cured.

Thanks all for comments and guidance, much appreciated.
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post #10 of 29 (permalink) Old 08-22-2019, 04:30 AM
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Hope it is sorted. Iíve just seen your other thread and think if itís not running well and thereís no errors then just try injector cleaner or running alkylate fuel through it.
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