Background
Maintenance Background: After clearing throttle of a 2017 GTV 278 VESPA, it has idle speed instability and no faulty code problem.
Maintenance Tips
Maintenance Tips:
It needs to learn about throttle after any maintenance below.
●Uninstall and install throttle
●Clear throttle
●Change throttle
Solutions
Solutions: Using OBDSTAR MS80 to operate on 【Throttle position self-learning】.
Detail Steps:
Tips: no activating engine and throttle in the whole process.
①Connect MS80 to Motorcycle, enter into 【Moto Diag】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9E/CgAH6GBhRtSASylXAAw1xSMjDqU803.png)
②Click 【All】, input letters such “VE”in search bar, click【VESPA】;
Tips: By searching keywords, find out related cars quickly.
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhRviAIn4-AAHe-RaM1W8721.png)
③Click the newest VESPA edition;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhRxCAQiOSAADHF96pcUw633.png)
④Click 【Select from vehicle】,【Vespa GTV】,【278 i.e.】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhRyaAdrjlAACNcVYZhMU398.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR0eANIyzAAEK7dZ9f6w345.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR0iAd5RJAAC52-dtGNY216.png)
⑤Click 【Scooter|(2016-)】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR2yALh-0AAES_N6YHH4795.png)
⑥Click 【ENG】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR4WAeNeaAAD3VTrEAGw693.png)
⑦ Click 【Diag Socket】or【Diag Connector】to check the socket position or diag cable information, connect diag cable and then click 【Enter】;
Tips: connect M002 battery cable to storage battery while using M004 diag head.
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR6iAYL_8AAEQDSJYPn4406.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR6qAREIbAAJ0soq-JOs121.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR6uAOtOBAAHU4rT5-jI627.png)
⑧Click 【Special Function】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/9F/CgAH6GBhR8aAQTJVAADsHCpNYqU743.png)
⑨Read the notes, then click 【Agree】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhR-GAGXitAAEeDg31PgE891.png)
⑩Input password 123, click【Enter】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhR_qAIYy0AAD__IMjWVY679.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhR_yAJ9TFAACYOMzmcDs430.png)
⑪Click 【Throttle position self-learning】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSA6AY8R0AADes50WOLI476.png)
⑫Click【Enter】, follow the reminders.
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSC-AeesxAAClHAkpGuk050.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSDGAGPmgAACvtXxWopI126.png)
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSDKAJzOrAACpa1v-Lmg375.png)
⑬Wait for several seconds
Tips: no other actions during waiting
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSEqACuaTAACSKADR_h8953.png)
⑭Turn off Ignition
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSGCAGZ0DAACPP2c7i_A240.png)
⑮After turning on Ignition, click 【Enter】;
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A0/CgAH6GBhSHmAEvQYAACookNQGBg765.png)
⑯Operate successfully.
![【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match 【SPECIAL FUNCTION】2017 GTV VESPA Throttle Match](https://0.rc.xiniu.com/g3/M00/B8/A1/CgAH6GBhSI6AGH6VAACYvgBPHGw096.png)
Summany
If Motorcycle has idle speed instability after uninstalling and installing, clearing, changing throttle, pls use OBDSTAR MS80 to operate on【Throttle position self-learning】. Then the problem gets resolved.