Hello hopefully someone maybe able to help. I have a 1200 dvt 2015 multistrada that I have brought with a problem. From what I have been told it was taken to a main dealer to have a full exhaust fitted ( Termi ) once it was fitted the bike wouldn’t tick over and it stayed at the dealer for a year and they brought it from the owner because they couldn’t sort the problem. So me being brave ( Stupid ) brought the bike cheap hopefully to repair it. So now the bike it back with it’s standard exhaust the bike has done 11k it starts no problem runs for about 2 or 3 mins and then the revs start to surge and get worse and worse til it stalls the bike will start up again no problem and start surging again and then stall again. I have had it plugged in and checked and it comes up without any issues. Has anyone had similar issues please help many thanks
I am not me mechanically minded, but it might be related to a part reaching a certain temperature then throwing its toys out of the pram, a part that regulates air mixture, temp sensor???? Or an air leak somewhere? Just getting the ball rolling, you will get the answer from our incredible members here for sure.
Thanks to you both I have had a guy with texa and it said all was well but I don’t think he had the latest software on it does anybody think that the ecu could of been affected when they did a map update when the exhaust was fitted
You may very well have a faulty MAP sensor. Not faulty in as much as it’s still passing a signal to the ECU so, as there’s no open circuit or short circuit, the ECU doesn’t throw an error, but faulty in as much as the silicon wafer within the sensor is broken or playing up and causing erroneous electronic signals to be relayed to the ECU. You can test the signal output of the map sensor by applying a vacuum to the sensor and back probing the signal wire and checking the voltage changes smoothly and in accordance with the parameters in the workshop manual. I can’t remember if it starts at 5V and drops to around 0.5V as the vacuum increases or vice versa but you’ll soon figure it out once it’s rigged up to test. The alternative is to buy 2x new sensors and fit them, but they’re around €130 each (iirc). Mind you I would have expected the dealer who had the bike would have done that, but you never know Also, as DucV2 says, hook it up to a diagnostic computer and look at the parameters screen, what are all the various parameters telling you? What it won’t be is an unknown mystery, it will be something logical and mechanical or electrical which is passing duff info to the ECU.
Thanks I will double check them but I do agree with you I think it will be something telling the ecu bad information
