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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
07 Oct 2008 12:59 |
Hi,
I bought a year 2000, Sprint RS, 26000miles on it, at the weekend. Whilst riding it home from work Monday night the MIL flickered on every time it went above 7000rpm and then when I got to about 8000rpm the tacho dropped to zero.
The battery is reasonably charged, and the terminals are well fixed.
The bike runs rough as rats between 2000 and 3000rpm, hunting and surging to throttle response. But the previous owner thought this was out of balance throttle bodies. ???? And runs very well everywhere else.
I've run the bike through three hot/cold cycles but it still flickers the MIL at 7000rpm (I've stopped doing this regularly now incase there is a real fault). The engine seems to run ok, and is pulling normally when the MIL comes on.
Any tips greatly received. I've had a quick flick through the forum (haven't found a search button yet - I'm a bit new to this site) and haven't seen the answer I'm looking for.
Thankyou,
Glen.
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jimmyj
Land of Black Prince,
United Kingdom
Posts: 8,252
Premier Member
Daytona 955i (04->)
07 Oct 2008 13:28 |
Welcome Glen 
Search button is directly above Last Post on the header bar
When you say "tacho dropped to zero" you mean the engine revs or tacho display?
IIRC there is something like a 6k max limit as I recall when in fault state for limp mode - may be quickest to go to dealers and get them to read the ECU for a fault code..
Brains will be along shortly though 
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
07 Oct 2008 13:32 |
Hi,
Tacho dropped to zero, engine still ran. And the engine still pulled and carried on revving.
I'm in the process of sucking the data out. Unfortunately SCANTool didn't work. Do you know what software most people use?
Also my OBD2 connector didn't have CAN HI and LOW in the pins I was expecting. ? But I've not played with a bike ECU before.
Yes, found the SEARCH button seconds after typing that. Typical
Cheers,
Glen.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
07 Oct 2008 13:36 |
Looks like it is K-line, doh.
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 X-Man
Chesterfield/Derbys,
United Kingdom
Posts: 9,843
Premier Member
Enthusiast
07 Oct 2008 13:39 |
Crank position sensor.
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jimmyj
Land of Black Prince,
United Kingdom
Posts: 8,252
Premier Member
Daytona 955i (04->)
07 Oct 2008 13:55 |
http://www.t595.net/messa.....hlight=pays+yer
CPS should be 1 mm gap IIRC - Tony?
Resistance = http://www.t595.net/messa.....p;highlight=cps
might help look at http://www.t595.net/messa.....highlight=0%2E9
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
20 Oct 2008 08:44 |
Hi,
I got around to giving the bike a once over at the weekend. And I'm still getting the MIL flicker on at high revs. So if there are any more pointers, please feel free to advise.
Took the clutch cover off, it had been off before and was chemi sealed back on. The air gap for the crank pos sensor was 1.0mm, I gave it a tweak anyway just to be sure. Measured the resistance which was 540ohms (which appears from the Haynes manual to be the correct resistance for the newer post 2002 model but not my 2000 model - guess it has been replaced).
All the air bypass hoses had split so I replaced them which improved the idle (pretty obviously).
Plug 2 was wet and fouled. I replaced all three. But the sub 3000rpm missfire still exists. My feeling is no. 2 coil pack is deteriorating. I will zap the manifold with my temp gun and isolate that for a fact and replace soon.
Any thoughts though on the MIL flickering above 6000rpm? Dodgy coil triggering it maybe?
Cheers,
Glen.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
22 Oct 2008 09:33 |
When I changed the plugs at the weekend plug 2 was fouled from fuel.
Checked the exhaust manifold temps at idle with engine warm, 1= 271C, 2= 265C, 3= 273C
Checked the ECU, no fault codes logged.
The throttle pos went from1 16% at idle to 90% at WOT. All sensors logged sensible temps and pressures etc.
Even though the MIL flashes and the tacho sometimes goes nuts it still revs cleanly. It pulled to 10,100rpm the other day with no sign of a rev limiter (which is a bit odd as I thought the limit was 9600-9700rpm).
Cheers,
Glen.
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X-Man
Chesterfield/Derbys,
United Kingdom
Posts: 9,843
Premier Member
Enthusiast
22 Oct 2008 16:06 |
hmmmm....throttle position should show 0% at idle (there is a button to correct it in tuneboy) and should go about 70% WOT (this is because it is referenced against 5v and it'll never get there due to the aforementioned adjustment). Thats as i understand it anyway.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
22 Oct 2008 16:59 |
Ok, interesting. I'll look into that in a bit (ie when I by a TB). It idles at 1300rpm ish hot and 2000rpm cold. It does really fluff at low openings.
At the moment I'm just using ElmScan to examine the ECU settings - it just happens to be what we use at work (I work in the ECU industry for car ECU's - design the s/w, ex-Delphi/Lucas).
I'm only getting between 30 and 40mpg at the moment which isn't too pleasant, but I swear it is only sparking two cylinders.
Cheers,
Glen.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
28 Oct 2008 08:38 |
Replaced coil number two and this has fixed the missfire, tacho going nuts and put the manifold temps at 270, 270 and 270.
However the MIL still comes on. But I've found this out to be a voltage level issue. Put the lights and the heated grips on and the MIL fashes at 3000rpm, switch all off and it won't come on until 7000rpm.
Will check voltage levels lunchtime with engine non/running. Think I'm needing a alternator overhaul  .
Cheers,
Glen.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
29 Oct 2008 09:06 |
Checked the voltage levels and they seem fairly good. 12.7V nothing on. 14.4V engine runing. 14.25V engine running and everything on. 12.0V engine off but everything on.
However, riding home last night the engine cut out (without the MIL on) during a gear change locking the rear wheel and sliding me onto the pavement. This thing is getting dangerous!
Any ideas?
Thankyou,
Glen.
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§peêd†riÞ
Surrey/Hants border,
United Kingdom
Posts: 41,631
Premier Member
Speed Triple 955i (02-04)
29 Oct 2008 09:33 |
would the local dealer have a known good ECU you could swag in for elimination purposes ?
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
29 Oct 2008 10:14 |
Yeah possible mate. I'm both new to the area (nr Colchester) and new to Triumph ownership so I haven't sussed out the dealers yet. I think there is one in Chelmsford called Ongar or something like that. Might be worth popping over, I need to get the ECU re-flashed if nothing else at some time.
Will try to snapshot the MIL DTC when it next happens to get a fault code.
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§peêd†riÞ
Surrey/Hants border,
United Kingdom
Posts: 41,631
Premier Member
Speed Triple 955i (02-04)
29 Oct 2008 10:16 |
Theres references to Essex dealers on the Forum - cant remember which one it is that gets the bad rep .... might be Ongar !
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§peêd†riÞ
Surrey/Hants border,
United Kingdom
Posts: 41,631
Premier Member
Speed Triple 955i (02-04)
29 Oct 2008 10:25 |
just one example ...
http://www.t595.net/messa.....well/70805.aspx
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
29 Oct 2008 13:31 |
[edited]:
Senior moment.....
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vic
san jose,
USA
Posts: 149
Daytona 955i (99-01)
29 Oct 2008 15:27 |
For the bike to stall and make youu crash is not good. Get you friggin ECU reflashed man.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
30 Oct 2008 08:33 |
Engine cut out again last night. Found an intersting fault though now. With all the electrics on and the handlebars turned right - putting the front brake on cut all the instrument power until I let go of the brake lever/light.
My thinks there is a wiring problem somewhere in this bike!
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OldNick
Essex,
United Kingdom
Posts: 233
Premier Member
Daytona 955i (99-01)
30 Oct 2008 08:38 |
I use Race Engineering just across the border in Hertfordshershire (Bishops Stortford). Not a Trumpy dealer but has tuneboy so can do all the diagnostics malarky. http://www.raceengineering.info/
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Earl
Hiding in the valley,
United Kingdom
Posts: 5,308
Premier Member
Daytona T595 (97-98)
30 Oct 2008 09:49 |
check all wiring around the headstock and also the earth block connectors can go bad and earthing is a common problem.
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
09 Nov 2008 14:14 |
Pgress update.
I've stripped the bike down and removed all conectors, cleaned them up and reconnected.
Replaced the fuel filter.
Re-set the throttle position sensor.
The bike still flicks the MIL on at high rpm. Now, in addition, the tacho holds at certain rpm whilst the engine keeps revving up- it freezes at say 6000rpm then a a second or two later jumps to 9000rpm and holds etc.
It now spits blue flames on overrun and backfires a bit at idle.
Could it be another coil dieing?
Thank for any help,
Glen.
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X-Man
Chesterfield/Derbys,
United Kingdom
Posts: 9,843
Premier Member
Enthusiast
09 Nov 2008 16:25 |
starting to sound like your ECU may be knackered....
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Glen Tunstall
Essex,
United Kingdom
Posts: 16
Sprint RS (00-01)
14 Nov 2008 14:00 |
Changed all three coils now. Still not happy. Missfiring, tacho going nuts, MIL on and engine cutting out randomly. Will put out an SOS for someone with tuneboy to re-flash the ecu.
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