Breva 750 Flashing EFI

[gentlemanjim]

Road my Breva to get some new shoes and I noticed the EFI light would come on intermittently and then go out only to reoccur.  Bike seemed to run fine.  What could be the cause and how do correct it?  Your help is greatly appreciated.

[malik]

Possible causes that have happened to me :-
1. The oil pressure sensor may be on the way out. Search out historic posts on this - there are cheaper than OEM readily available, but have to take care with the fitting threads.
2. When I had oil seeping from the rev sensor, I would get the eng Mgmnt light come on, sometimes when wet, & sometimes after a fuel stop. It would then go out. A smear of ThreeBond 1211 around the rev sensor's o-ring fixed that.

I'd guess there's a sensor or a connector to one somewhere in the the system that's playing up, intermittently. If you've Guzzidiag in your toolkit, or access to it, you could check the errors log. There might be something there which could point you in the right direction.

[gentlemanjim]

I don't mind that it blinks a bit.  I worry if it is impeding performance.  Manual says it may.  I don't know how this bike should perform.  Acceleration seems a bit slow although I get up to speed an been up to 100 MPH, but no rush when I crack the throttle.  Seems I recall by V50 was snappier.  Thoughts?

[Muzz]

Jim, on a recent trip i was on the Breva developed a bad miss while passing a petrol tanker.  Got past, missed going olong the top of the rise and noticed the EFI light flashing.  Died going down the the hill so pulled over at the bottom with a dead bike on dusk.  Had been through a lot of roadworks, thought all the W.G threads I had read, felt underneath the bike and found the sidestand switch had been hit by a gooley and was hanging on with shredded wires.  Carefully straightened them out and made it the remaining 80 miles home.

Next day when I could see the brown wire was still attached but the other two were crunched together.  I left the two wires joined together and taped and insulated the brown wire.  Bike still runs.  Sidestand switches are known to be problematic anyway.

[Muzz]

  Acceleration seems a bit slow although I get up to speed an been up to 100 MPH, but no rush when I crack the throttle.  Seems I recall by V50 was snappier.  Thoughts?

Mine will accelerate up there no trouble at all.  Responds when throttle opened at 100kms no probs.

My EFI has never blinked, except for the time just mentioned.

[sign216]

Guzzi put out a couple of technical bulletins to reduce the intermittent  warning light, but they were for the V7 and later Nevadas.  I don't recall any for the Breva series.

Joe