still guess you have a bad mass air flow sensor

test mass air flow sensor

https://www.google.com/search?q=how+to+test+mass+air+flow+sensor&oq=hoe+t+otest+mass+air+flow+sensor&aqs=chrome.1.69i57j0l9.6623j1j7&sourceid=chrome&ie=UTF-8#kpvalbx=_e-PmXr28NLqEytMPrtGMwAQ34

所有跟帖： 

• 不要乱说乱动，把眨巴眼诊成个瞎子，老车断电池后，会有怠速过低问题。原因是 -事后诸葛- ♂ (713 bytes) () 06/14/2020 postreply 22:57:09

• 今天读了所有OBD参数，气流量，油气配比，THROTLE POSITION，油压都没问题 -xiangbuming- ♂ (0 bytes) () 06/15/2020 postreply 13:09:54

• 不过我前两天下载地图，真把电池耗光了 -xiangbuming- ♂ (0 bytes) () 06/15/2020 postreply 13:10:55

• 不太可能 -TBz- ♂ (0 bytes) () 06/16/2020 postreply 10:44:08