I have been some issues with stalling. Plugged in the GS 911 today and with the engine stone cold and not running the realtime values for the Lambdas was interesting:
Lambda Sensor voltage 1 : 449.21Mv
Lambda Sensor voltage 2 : 4218.70Mv
After staring the engine Lambda #1 seemed to be behaving as expected, i.e. jumping about between about 850Mv and 50Mv. Lambda #2 voltage however stayed at around 4218Mv for a short while before slowly dropping and until after about 5 minutes it came within the right sort of range and then stared to jump about as expected if perhaps not quite with the same frequency as #1 when I looked on the graph. Revving the engine though seems to bring the graph lines more or less into sync (which I think is normal and OK).
When I checked things again after the engine had cooled right down again both Lamdas now had the same reading, BUT there was a new fault code: "10018 Lambda (O2) sensor (Cylinder 2); Signal or value over threshold". Fault logged 85secs after I started the engine with the strange readings I mentioned above, with the voltage is recorded as 1.33v. The fault is no longer present.
I assume the bike ignored the 4218Mv reading as the engine was cold but when it thought it was time to sample the Lambda it got the reading of 1.33v and threw the fault.
New Lambda time? Which side of the bike is number 2?
Background
2011 GSA. Started to run a bit rough a month or so back - a bit vibey, a bit sluggish to the throttle, a bit just not quite right and the 5K flat spot felt flatter than normal. When proper hot - like in traffic straight from the motorway tickover was bit erratic and it needed a bit of throttle to smooth it. Stalled (died really) if I wasn't quick with the throttle when pulling the clutch in. No fault codes. However all the roughness was a bit intermittent and I could still have a good 60-70mph run without drama. The problem always occurred at low speed with a hot (and getting hotter) engine.
Nevertheless thinking it was a heat related issue affecting the coils I bought a set of 4 used Coils and swapped them out. On the first outing on local roads initially all seemed OK but about 15miles in it died a couple of times before clearing up. Next day I gave it a blast down the motorway thinking it would burn off any contamination that may have built up on the lambdas and plugs as a result of an iffy coil. This seemed to improve things no end. Bike was back to its normal self and we had a few good runs out with no issues. Probably did 300miles and all was good.
But the problem has come back. It kept dying on me filtering through motorway traffic. Once back going again at motorway speed all seemed good again if perhaps a little off balance - but I could have been being overly sensitive - and I completed a 250 mile day with no other issues, although I didn't need to do any more town or low speed riding. GS911 when I got home had no relevant faults (I had had a bulb fail and the flappy exhaust valve is missing).
Lambda Sensor voltage 1 : 449.21Mv
Lambda Sensor voltage 2 : 4218.70Mv
After staring the engine Lambda #1 seemed to be behaving as expected, i.e. jumping about between about 850Mv and 50Mv. Lambda #2 voltage however stayed at around 4218Mv for a short while before slowly dropping and until after about 5 minutes it came within the right sort of range and then stared to jump about as expected if perhaps not quite with the same frequency as #1 when I looked on the graph. Revving the engine though seems to bring the graph lines more or less into sync (which I think is normal and OK).
When I checked things again after the engine had cooled right down again both Lamdas now had the same reading, BUT there was a new fault code: "10018 Lambda (O2) sensor (Cylinder 2); Signal or value over threshold". Fault logged 85secs after I started the engine with the strange readings I mentioned above, with the voltage is recorded as 1.33v. The fault is no longer present.
I assume the bike ignored the 4218Mv reading as the engine was cold but when it thought it was time to sample the Lambda it got the reading of 1.33v and threw the fault.
New Lambda time? Which side of the bike is number 2?
Background
2011 GSA. Started to run a bit rough a month or so back - a bit vibey, a bit sluggish to the throttle, a bit just not quite right and the 5K flat spot felt flatter than normal. When proper hot - like in traffic straight from the motorway tickover was bit erratic and it needed a bit of throttle to smooth it. Stalled (died really) if I wasn't quick with the throttle when pulling the clutch in. No fault codes. However all the roughness was a bit intermittent and I could still have a good 60-70mph run without drama. The problem always occurred at low speed with a hot (and getting hotter) engine.
Nevertheless thinking it was a heat related issue affecting the coils I bought a set of 4 used Coils and swapped them out. On the first outing on local roads initially all seemed OK but about 15miles in it died a couple of times before clearing up. Next day I gave it a blast down the motorway thinking it would burn off any contamination that may have built up on the lambdas and plugs as a result of an iffy coil. This seemed to improve things no end. Bike was back to its normal self and we had a few good runs out with no issues. Probably did 300miles and all was good.
But the problem has come back. It kept dying on me filtering through motorway traffic. Once back going again at motorway speed all seemed good again if perhaps a little off balance - but I could have been being overly sensitive - and I completed a 250 mile day with no other issues, although I didn't need to do any more town or low speed riding. GS911 when I got home had no relevant faults (I had had a bulb fail and the flappy exhaust valve is missing).
. 
