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DQS issue downshifting

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E

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Discussion Starter · #1 ·
Hi everybody, Im a new user from Spain (sorry my bad english), I got a S model with little issues with DQS.
When upshifting things go smooth as silk but downshifting only works 10% of the time. The dash shows active DQS u/d as it works properly. The first downshiftings of the ride, aprox 6 times, are OK, smoth, correct blipping, amazing and addictive functioning... But thats it, only 6 or 8 times. Then the lever turns hard as if its no DQS, so I have to clutch manually when facing a turn thinking the DQS is gonna work: not funny when you are thinking you got a DQS working fine. Recently I found out that little throttle solve the problem and the downshift works ok and smooth but I think this is not the correct functioning of the system. When braking and lowering a gear it makes no sense having to open throttle to gear down.
Im thinking of adjusting the gear lever to see if is a sensor issue but the fact that DQS works with little thottle makes me think in the ECU maybe.
Anyone with the same or similar issue?

Thanks!
 
amoslws

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4,480 Posts
#4 ·
edufox said:
Hi everybody, Im a new user from Spain (sorry my bad english), I got a S model with little issues with DQS.
When upshifting things go smooth as silk but downshifting only works 10% of the time. The dash shows active DQS u/d as it works properly. The first downshiftings of the ride, aprox 6 times, are OK, smoth, correct blipping, amazing and addictive functioning... But thats it, only 6 or 8 times. Then the lever turns hard as if its no DQS, so I have to clutch manually when facing a turn thinking the DQS is gonna work: not funny when you are thinking you got a DQS working fine. Recently I found out that little throttle solve the problem and the downshift works ok and smooth but I think this is not the correct functioning of the system. When braking and lowering a gear it makes no sense having to open throttle to gear down.
Im thinking of adjusting the gear lever to see if is a sensor issue but the fact that DQS works with little thottle makes me think in the ECU maybe.
Anyone with the same or similar issue?
Thanks!
Click to expand...
You must have zero throttle when downshifting. That's what the owners manual states. The DQS cuts the fuel on upshift but you must cut it for downshift.
 
E

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59 Posts
Discussion Starter · #6 ·
amoslws said:
edufox said:
Hi everybody, Im a new user from Spain (sorry my bad english), I got a S model with little issues with DQS.
When upshifting things go smooth as silk but downshifting only works 10% of the time. The dash shows active DQS u/d as it works properly. The first downshiftings of the ride, aprox 6 times, are OK, smoth, correct blipping, amazing and addictive functioning... But thats it, only 6 or 8 times. Then the lever turns hard as if its no DQS, so I have to clutch manually when facing a turn thinking the DQS is gonna work: not funny when you are thinking you got a DQS working fine. Recently I found out that little throttle solve the problem and the downshift works ok and smooth but I think this is not the correct functioning of the system. When braking and lowering a gear it makes no sense having to open throttle to gear down.
Im thinking of adjusting the gear lever to see if is a sensor issue but the fact that DQS works with little thottle makes me think in the ECU maybe.
Anyone with the same or similar issue?
Thanks!
Click to expand...
You must have zero throttle when downshifting. That's what the owners manual states. The DQS cuts the fuel on upshift but you must cut it for downshift.
Click to expand...
Yes, I know it. Downshifting always with closed throttle but I realized that little gas allows DQD to gear down... Im pretty sure that is not normal at all. But...with closed throttle there's no downshifting :(
 
amoslws

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4,480 Posts
#11 ·
I had a problem with the DQS, I know how kak it is when gearing down for the bend and it doesn't operate. Can be quite unsettling. Ruins the fun in bend.
I had to turn key off and the ecu rebooted but that was the only issue I had. It was registered at ducati. Never happened since.
 
E

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Discussion Starter · #12 ·
amoslws said:
I had a problem with the DQS, I know how kak it is when gearing down for the bend and it doesn't operate. Can be quite unsettling. Ruins the fun in bend.
I had to turn key off and the ecu rebooted but that was the only issue I had. It was registered at ducati. Never happened since.
Click to expand...
So problem solved with a keyoff? Is a reboot the same? Not in my case then...
 
Triple S

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#13 ·
edufox said:
Hum ok but I always shift up about at 4500 rpm and down at aprox the same or below rpms...
Thanks for the advice!
Click to expand...
ok thought when you said braking you mean braking hard, for me down change during light braking and no braking just slowing for a bend dqs down works well.Only time once when dqs flashing on dash up/down would not shift until i turned off the ignition for 30 seconds. Maybe check DQS u/d on dash is flashing when your problem happens, if it is flashing the ecu detects a problem at that moment. I know this is not easy because you are not slowing as you wanted to so will be looking at the road not the dash.
 
E

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Discussion Starter · #14 ·
Triple S said:
edufox said:
Hum ok but I always shift up about at 4500 rpm and down at aprox the same or below rpms...
Thanks for the advice!
Click to expand...
ok thought when you said braking you mean braking hard, for me down change during light braking and no braking just slowing for a bend dqs down works well.Only time once when dqs flashing on dash up/down would not shift until i turned off the ignition for 30 seconds. Maybe check DQS u/d on dash is flashing when your problem happens, if it is flashing the ecu detects a problem at that moment. I know this is not easy because you are not slowing as you wanted to so will be looking at the road not the dash.
Click to expand...

Thanks TripleS! Yes, I mean both situations, smooth braking/no braking and hard front braking. The dash never shows the dqs u/d flashing, always steady and ok. :)
 
E

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Discussion Starter · #16 ·
Hi everybody, I've just adjusted the gear lever to a longer position, turning the semi rod (the portion with no dqs sensor), and the problem is solved.100% of correct shifts, both down and up.
Thank you guys for the advices and ride safe!
L'sss
 
Ed K

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10,824 Posts
#17 ·
edufox said:
Hi everybody, I've just adjusted the gear lever to a longer position, turning the semi rod (the portion with no dqs sensor), and the problem is solved.100% of correct shifts, both down and up.
Thank you guys for the advices and ride safe!
L'sss
Click to expand...
Cool. How much did you adjust it to make it work?
 
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