My vehicle is 2018/Toyota/Yaris IA mileage 106,000 and automatic. There are no codes that appear and once vehicle starts the cars runs normal does shut off or skipping . I checked the MAF, battery, and fuel injectors and there is no change. Is there a way to check the fuel pump without the pressure gauge. I can get borrow the XTOOL D9 PRO Scanner but am not sure what I should check. Any suggestions would be appreciated thanks.
First thing load test the battery and test the alternator. They could be weak. If not that it's off in the starter which can also be load tested by a good mechanic. Toyota is a pretty dependable, usually it's one of those