GTS OWNERS CLUB

mapgp175 · troop Joined: 09 Nov 2007 Posts: 34

yes three hundred miles and already my gts has gone wrong!

i'm the only bloke in the world who has owned an unreliable p200 and now this....

light only comes on once warmed up to correct temp? been told it may be the lamda semsor in exhaust or batt bit to low but taken for 70 mile trot today and still on only when warmed up.
anyone help?
need to get to dealer for dianostic check nut nice to warn him off so he can get partd in to save me losing scooter for days..

CheekyThomas · Guvernor Joined: 18 May 2007 Posts: 1374

Lambda sensor would be a fault all the time, it wouldnt only appear once the engine was warm.... it could be a faulty ecu program and its overfueling once warm Question

Could be overcharging or under charging...

First thing i would do is clean the big connector on the fuel body for the module, just whip the seat tub out, undo the screw for the cable clamp and unplug it, give it a spray with some contact cleaner (WD40 if you have nothing better) then a little bit of grease to keep the water out and replug it in and see if it then goes out.

mapgp175 · troop Joined: 09 Nov 2007 Posts: 34

cheers cheeky
will give it a try.
why me!!

jetex · Posted: Sat Mar 01, 2008 11:43 pm Post subject:

Could be a fault on the coolant temperature sensor. This could be telling the E.C.U that the engine is running rich when warm. The only real way to diagnose this is by using the electronic diagnostic scan tool. By the way, it is not a good idea to put grease on any electrical connections. This can cause a poor contact of electrical connections. The only exception is a smear of copper grease on the battery terminals, but better to use vaseline. I am a car mechanic of many years standing, and the Vespa has similar technology to most cars, unfortunately, my scan tool is not suitable for a GTS as it has a different diagnostic socket. Good luck with your scoot, and post areply when it's sorted.

CheekyThomas · Guvernor Joined: 18 May 2007 Posts: 1374

As long as you use a suitable grease its fine... dont use wheel bearing grease or similar, ive got a tube of proper electrical grease for just the job Wink

mapgp175 · troop Joined: 09 Nov 2007 Posts: 34

top marks to jetex
to front of class fault ended up as the wire to temp sender shorting out but only when the sensor was at correct temp
wire under frame beside battery shortted out.....
running again now rallying again this weekend to worrying the sheep if it lets me down on this one it's going to catch fire....
tony
colour? ....... black of course
newport dragons

Maver · Posted: Tue Apr 01, 2008 5:37 pm Post subject:

glad you're sorted mapgp175 Cool

thanks for update Cool

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Innocenti · Posted: Tue Apr 01, 2008 8:13 pm Post subject:

Mav may need to do a sticky post for all to see looks like good advice to check wires around battery and look to cleaning and greasing all connections and points to avoid corrosion in the future seems to be a problem coming to light Wink

thanks for update m8ty Wink

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CheekyThomas · Guvernor Joined: 18 May 2007 Posts: 1374

Glad to hear its running, but it wouldve been nice to see what happened.

Cant have been the temp switch though, as it wouldnt put the ECU light on... as the only wire from the cooling switch that heads that way is the one for the dash reading, and its not an ECU measured device.

The wire for the ECU temp sensor is a short piece about 15cm long and heads backwards to the ECU on the throttle body... so doesnt go near the battery Question

Did they get any fault codes from the bike... the fact it was ok when cold, but happened when upto temp sounds more like a failure on the Lambda sensor side, as when cold it runs a different set up than when hot as its bypassed to start with while it gets a preheat charge shoved up it.

But whocares its fixed and lights off.... get out and enjoy it! Very Happy

mapgp175 · troop Joined: 09 Nov 2007 Posts: 34

sorry can only report what idiot shop owner said!!!!
i complained thet they cracked the headset top during the service but had glued it back together so was not seen instantly. got it home and tried to remove oily finger prints off and noticed.
accused me of calling him liar and told me didnt want to see me or bike again..!!!
felt quite ashamed to be a fussy customer i mean i only paid £3500 for it.
i'm only 9 months back from tour so i think he's lucky i didnt have a rage for 5mins a smash his shop up i could of killed him. i dont know?
oh it's in very north of bristol wont name them but a father, son and daughter outfit you'll know....tony
wish i was nearer some of the dealers on here...