GS-911 and ezCAN User Forum
General Category => Technical => GS-911 => Engine related issues => Topic started by: Jughead on September 17, 2015, 01:09:34 PM
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Anyone know which switch this refers to? It is not the sidestand switch.
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Hi Jughead,
I think that this is the response from the controller, if the TPS adjustment is correct.
Please actuate the throttles and see what happens with this "idle switch" .
Will it go to OFF ?
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Hi Jughead,
I think that this is the response from the controller, if the TPS adjustment is correct.
Please actuate the throttles and see what happens with this "idle switch" .
Will it go to OFF ?
Hi Schuppi
The error comes up regardless of where the throttle is positioned. I have removed the TPS from the throttle body and have it just hanging free. I have tried it at numerous positions and the error persists.
It will also not allow any adjustment. As soon as you click on "Start", this comes up.
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Hello,
in that case, the sensor will be out of the stored value in the ECU.
For example. Stored value for idle 0,4 -0,6 V (I dont know exactly the right value) >
TPS setting and learning is unlocked.
Ignition is on and power supply to the sensor is good? > YES, I think so.
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Hello,
in that case, the sensor will be out of the stored value in the ECU.
For example. Stored value for idle 0,4 -0,6 V (I dont know exactly the right value) >
TPS setting and learning is unlocked.
Ignition is on and power supply to the sensor is good? > YES, I think so.
Yes, ignition is on and sensor is good. I have even used a sensor from a nicely running bike. Same result.
I have adjusted the sensor to give me .36V on a Fluke digital MM, but even so, the "switch" remains on, and the adjustment feature fails.
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Let me have a look on a comparable bike in the evening 8)
I'll tell so :)
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Thanks Schuppi!
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:)Here I am 8)
Your measurement > TPS position 3,52° and idle switch on
Mine > TPS position 0,32° and idle switch off
so I took the multimeter:
brown > earth > to throttlebody > 0,01 Ohm
white > potentiometer 1 > 0,01 V to 4,7 V by turning the throttle
green > supply from ECU 4,9 V
white/red > potentiometer 2 > when basic setting is right / green, shown by GS911 > 0,33 V to 4,8 V
Hope this will help to fix this problem
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:)Here I am 8)
Your measurement > TPS position 3,52° and idle switch on
Mine > TPS position 0,32° and idle switch off
so I took the multimeter:
brown > earth > to throttlebody > 0,01 Ohm
white > potentiometer 1 > 0,01 V to 4,7 V by turning the throttle
green > supply from ECU 4,9 V
white/red > potentiometer 2 > when basic setting is right / green, shown by GS911 > 0,33 V to 4,8 V
Hope this will help to fix this problem
Thank Schuppi
I tried playing around with the TPS last night. I could get the TPS position down to 0,14°, but at no stage could I get the switch to the off status.
I could get the full voltage range from .01V to 4.86 by moving the TPS from one extreme to the other.
I eventually adjusted it by ear to a point where the motor idled smoothly.
From what you said earlier, "in that case, the sensor will be out of the stored value in the ECU.
For example. Stored value for idle 0,4 -0,6 V (I dont know exactly the right value) >
TPS setting and learning is unlocked." it would appear that the adjustment is not possible unless the TPS is adjusted correctly. That kind of makes the adjustment function redundant.
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"I could get the TPS position down to 0,14°, but at no stage could I get the switch to the off status."
Hello
Did you measured all wiring from TPS to ECU? Whats about the two Potentiometer cables? white and white/red
Did you measured the resistance of the two potentiometers, did they change their values evenly?
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"I could get the TPS position down to 0,14°, but at no stage could I get the switch to the off status."
Hello
Did you measured all wiring from TPS to ECU? Whats about the two Potentiometer cables? white and white/red No, did not check continuity.
Did you measured the resistance of the two potentiometers, did they change their values evenly? Yes, both pots appeared to work 100%. Even used a known good from from another running bike.
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8)ONE MORE chance ;)
Did you try to disconnect the ECU from wiring, wait some minutes and run the adaption again?
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8)ONE MORE chance ;)
Did you try to disconnect the ECU from wiring, wait some minutes and run the adaption again?
Yip.
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so, if i unplugged the TPS, my GS911 switched to 3.6° and idle switch on.
That is the same result as you posted. In my opinion, there is something wrong with power supply
or response.
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Thanks for the assistance Schuppi
I had to send the bike out without using the GS911 to adjust the TPS. I just adjusted it by ear till it was running smoothly.
The client rode it from PE to Cape Town, a distance of around 900km. When he arrived in Cape Town he sent me an sms, saying he is very happy with the bike and it has never run so well. ;D
So, I will leave well enough alone for now. I have another 1100RT in the shop that requires a new clutch. Once that is done I will check the TPS on that one and see if it can be adjusted.
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OK. Because I'm a sucker for punishment, or just pedantic, I asked the client to return his bike to me as the TPS adjustment, although the bike ran well, was still bothering me.
I decided to start from scratch. First checked that I could could not adjust it and that the idle switch was still on. Affirmative on both counts.
I then stripped and cleaned both throttle bodies.
Results still the same.
I then decided to go the digital multimeter route.
Backed out the butterfly stop screw on the LHS TB until the butterfly was completely closed and the stop was not in contact with the screw. Fitted the TPS back on and connected it with the MM attached. Adjusted TPS to give me 0.25V on the MM. Then turned the butterfly stop screw in until I got 0.36V on the MM.
Hooked up the GS911 and Bingo! The bar was sitting perfectly in the centre of the scale and the idle switch was off. Hooked up the vacuum gauge and synced the RHS TB with the LHS one.
Motor now runs smoother than it ever has before.
The GS911 appears to create a little catch 22. You cannot adjust the TPS unless it is correctly adjusted, in which case you have no need to adjust it. If it is out of adjustment, well, :o
The method I have used above allows you to adjust it initially, after which the GS911 can be used for finer adjustment.
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Excellent result!
Mike