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Discussion Starter · #1 ·
Hi all, I'm not sure whether is there any servo eliminator out there that fit to a F3, but I will need all of your help to identify that which servo eliminator does fit to a F3. I have removed the valve cable, and it does not show up any fault light until just today, ithe message "STOP ENG EXHAUST VALVE" show up again. Took the fairing out, start the engine and check the servomoto, the unit that control the valve cable doesn't move at all, suspected the unit gone...
Anyone got any info? Thanks.
I
 

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Old Wing Nut
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The servo stepper motor has rotated beyond the position sensor limits. Sensor works on a 5 volt signal and sends voltage back to ECM to indicate valve opening. Usually about 1 volt for fully closed and 4 volts for fully open. If the ECM does not see any signal from the sensor it will make a "detected trouble code", or fault code.

I haven't studied the F3 schematic but suspect 2 of the pins on your connector are the servo motor and ECM controls with reversing voltage polarity, the other 3 pins being the sensor voltage supply, ground and center tap (sensor).
You might try rotating the pulley to get a sensor reading in the center of the resistance range it has and then disabling the actuator.......but I am not certain that will work.
 

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Discussion Starter · #3 ·
Thank you for pointing out about this. It's too technical for me to understand how it works I guess, I will let the specialist to do that according to what you've mentioned though. Let's see how it works out.
 

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I just sent a note to an acquaintance of mine that makes the Servobuddy. Hopefully the low sales volume won't keep him from making them.
 

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Discussion Starter · #5 ·
I have sent email to Skutrnet too regarding the servo buddy, I was told extremely low demand from MV is the main reason that they didn't develop for MV, let's hope they make 1...
 

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I have sent email to Skutrnet too regarding the servo buddy, I was told extremely low demand from MV is the main reason that they didn't develop for MV, let's hope they make 1...
I know Jeremy from the track. He said the biggest issue is the initial cost of connectors. He has to get 100s or 1000s just to place an order. I sent the wire diagram and connector picture. We will see what he can do.

Does anyone know the input and output voltages for the servo motor?
 

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I m not sure whether the pictures below help. Are we able to determine the voltage of the servo moto by the numbers of wires?
No, the number of wires give no indication of voltage. I haven't pulled mine yet, but I may open the servo to test the voltages and resistances. Is there a voltage tolerance printed on the outside of the box?
 

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Old Wing Nut
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Suspect the 3 wires you see are the position sensor. One +5 V signal from ECM, one ground to ECM and one the center tap "signal" wire to ECM.
The contacts for the motor are underneath (clip in type connections). You could back probe the connector with a voltmeter to see what voltage the ECM is using to run the motor....most other brands use battery voltage (12v).

By the way, you can have your ECU reflashed .... http://ecunleashed.com/product/2014-mv-agusta-f3-675/
 

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Discussion Starter · #10 ·
That's interesting. I saw there is a dealer in my country. Will give them a call to find out. Thanks for the info.
 

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The servo stepper motor has rotated beyond the position sensor limits. Sensor works on a 5 volt signal and sends voltage back to ECM to indicate valve opening. Usually about 1 volt for fully closed and 4 volts for fully open. If the ECM does not see any signal from the sensor it will make a "detected trouble code", or fault code.

I haven't studied the F3 schematic but suspect 2 of the pins on your connector are the servo motor and ECM controls with reversing voltage polarity, the other 3 pins being the sensor voltage supply, ground and center tap (sensor).
You might try rotating the pulley to get a sensor reading in the center of the resistance range it has and then disabling the actuator.......but I am not certain that will work.
Hi - Just gave this a whirl(I have the same problem on a F4) and it quickly dawned on my that I don't actuall know a) which connector pin to try and b) what "correct" is. I wondered if you experimented with this at after your post?
 

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I have a Healtec ESE on my F3 800. Cost £35 (ish - I think, but no more than £45). Just plug it in and get your dealer to re-calibrate the "servo" and all is well. Don't forget to ensure that the valve in the exhaust is actually open!
 

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Hi - Just gave this a whirl(I have the same problem on a F4) and it quickly dawned on my that I don't actuall know a) which connector pin to try and b) what "correct" is. I wondered if you experimented with this at after your post?
I don't own a MV with an exhaust tuning valve, so I haven't experimented... But I deal with various bikes that have them ll the time. They all basically work the same way, ECU programming being the main differences. Some brands more sensitive than others.

Have a look at the wiring schematic to determine what wires do what. Good luck.
 

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blue monkey motorsports also (USA)
 

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I have a Healtec ESE on my F3 800. Cost £35 (ish - I think, but no more than £45). Just plug it in and get your dealer to re-calibrate the "servo" and all is well. Don't forget to ensure that the valve in the exhaust is actually open!
Hi, hope you can help.
I fitted the Healtec ESE-A01 on my 2012 F3 675 EAS and immediately it resolved the Exhaust Valve error from the bikes system check. Unfortunately when the bike is running for say a minute or so the error reappears.
Looking at Section G Pg45 in the workshop manual am I correct in assuming that the valve in this picture is in the closed position? The spring natively puts it here?

I've tried running the bike for short intervals with the valve lock wired in this position, midway then what I assume to be fully open but none have been successful in alleviating the error. After a short period of the bike ticking over the error reappears.

I've checked the fuel cap and can't hear any suction noise and have also traced the fuel lines to make sure they weren't twisted or kinked. What am I missing?.
Is it the black arts of software tuning that will remedy this?
The error side of things were fine until I took the bike to Peter Stevens Melbourne when it seemed to pulse or loose power slightly when freeway cruising. They checked throttle bodies and reported them to be fine, then flashed it with the latest map believing that to be the cause. Since then I've been going round in circles with this error. Been back to them twice now.
Previously the guys in Mototecnic (no longer trading) were able to disable it or turn it off but apparently PS don't have that option with their software ?? I'm kinda stuck now and don't want to have to keep looking at the yellow light, the error and labor bill everytime I take it to PS.

Appreciate anything suggestions anyone may have.

Cheers
Gerry
 

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I have always assumed the valve is "natively" open. When the ignition is turn on to start, then the valve positions to wherever the ECU programming tells it to go.

To eliminate the doubt as to where the valve lives when wired as you show, just pull off the muffler/box and see where the valve is oriented.
 
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Old Wing Nut
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Default position for the valve is open. Spring loaded. The cables "Pull" the valve closed.

If your Sensor eliminator (Healtech?) does not prevent the fault then either it may be defective.
 
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Hello everyone, Just an quick update on my eliminator woes, both silentservice703 and esq'z me were correct with their advice that the butterfly valve is natively open, so for those interested the extract from the manual above and my first photo show the valve in the open position (Thanks guys for your help with this)

Since my initial post I have been to 2 MV dealers in Melbourne. Both unfortunately are unable to disable the Exhaust Valve completely from within the ECU software. They can see the errors no problem (see attached image) but all they can do is clear and wait for them to reappear. They think the eliminator itself could be faulty as once connected it should bypass it fullstop. I've raised this to Healtec who's initial response after get me to perform some testing was:

"MV Agusta bikes are non-consistent so it can happen that the ESE works perfectly but it can also happen that it won't work properly on your bike. Unfortunately, the only way to be sure is to try. There's a chance the replacement will not help.
So if you experience problems with the ESE-A01 then I'm afraid it will not work on your bike.
You may return the item to the seller for a refund. We are sorry for the troubles.
Kind regards,"

I pushed them for a replacement eliminator to be sent out and they have kindly agreed. At least if this doesn't work then I can return both servo eliminators which more or less points to my bikes ECU being difficult and the root cause of the issue.

To recap, this all came about when it was flashed with the latest map to resolve throttle issues and pulsing which in fairness seem to have been sorted.
I've asked if they can reflash with the old map and apparently this cannot be done? There's no go back option with the software which I don't know if this is true or not?
Anyway, I'm hoping to hear from the Healtech supplier tomorrow or early next week and will go from there. Will keep you posted.
Cheers
Gerry
 

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Re ese woes from healtec - you need to reset / recalibrate the ecu when you fit the the ese. When I first fitted it, the warning light came on a few times, but then a quick trip to the dealer and 30s fastened to their PC and 4000miles later.....no problems at all. Just louder and more popping and spitting on the overrun. :)
 
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