Modern Vespa : 'Check Engine' light

'Check Engine' light

OP McRuss UTC details Hooked '20 GTS300 Touring, '10 GTS300 Super (sold) Joined: UTC Posts: 140 Location: Ruidoso Downs, New Mexico
OP McRuss Hooked '20 GTS300 Touring, '10 GTS300 Super (sold) Joined: UTC Posts: 140 Location: Ruidoso Downs, New Mexico	UTC quote OK, so it is called the 'Fuel Injection Warning Light'. It comes on when the engine starts and goes off in a couple seconds. What exactly does it warn of? I can't find a good explanation anywhere.

jimc UTC details Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA
jimc Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA	UTC quote If any of the sensors give an out-of-gamut reading, it'll come on. The most common reason seen on MV is when it comes on at high revs - that's a sure sign of the regulator having failed and the battery beginning to cook. So always worth taking notice of it if it comes on.

Miguel UTC details Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California
Miguel Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California	UTC quote jimc wrote: If any of the sensors give an out-of-gamut reading, it'll come on. The most common reason seen on MV is when it comes on at high revs - that's a sure sign of the regulator having failed and the battery beginning to cook. So always worth taking notice of it if it comes on. Jim. When that happens, are there alternatives to just stopping and getting a tow? Miguel

jimc UTC details Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA
jimc Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA	UTC quote If the bike's still running - personally I'd carry on to my destination and sort it out there. YMMV depending on how lucky you feel. The show-stopper is the oil pressure light coming hard on.

Miguel UTC details Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California
Miguel Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California	UTC quote Thx Miguel

DrScooter UTC details Addicted 2007 GTS 250ie 2006 Ducati Monster S2R 803 2005 Sportster 883XL 2010 GTS 300ie Joined: UTC Posts: 586 Location: St.Louis, Missouri
DrScooter Addicted 2007 GTS 250ie 2006 Ducati Monster S2R 803 2005 Sportster 883XL 2010 GTS 300ie Joined: UTC Posts: 586 Location: St.Louis, Missouri	UTC quote Yep, it's seems to be the Voltage Regulator. It happened to me, ruined the battery too. Replaced and fixed, seems to happen way too much. The voltage goes up, can (will) blow out light bulbs too.......

jimc UTC details Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA
jimc Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 46044 Location: Pleasant Hill, CA	UTC quote Just to be clear - coming on at switch-on and staying on for three seconds whether or not the engine is started is perfectly normal - it shows the light works and that the ECU has completed its internal checks.

McRuss

UTC

details

Hooked

'20 GTS300 Touring, '10 GTS300 Super (sold)

Joined: UTC
Posts: 140
Location: Ruidoso Downs, New Mexico

McRuss

Hooked

'20 GTS300 Touring, '10 GTS300 Super (sold)

Joined: UTC
Posts: 140
Location: Ruidoso Downs, New Mexico

UTC quote

jimc wrote:

Just to be clear - coming on at switch-on and staying on for three seconds whether or not the engine is started is perfectly normal - it shows the light works and that the ECU has completed its internal checks.

OK, that is what I was looking for. So it monitors more than just the Fuel Injection. I was comfortable with it coming on at switch-on, no problem there, just wondered if there was more too it than fuel injection warning. Thanks for the info.

FWIW, the manual is not that great....

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