6. AFI (AUTOMATIC FUEL INJECTION) MYROAD 700i TROUBLESHOOTING Engine would not start Backfiring or misfiring during acceleration · Intake air leak · Ignition system malfunction · Fuel contaminated/deteriorated · Pinched or clogged fuel hose · Faulty fuel pump · Clogged fuel filter · Sticking fuel injector needle · Faulty fuel pump operating system Engine stall, hard to start, rough idling Poor performance (drive ability) and poor · Intake air leak fuel economy · Fuel contaminated/deteriorated · Pinched or clogged fuel hose · Pinched or clogged fuel hose · faulty injector · Idle speed misadjustment · Fail to perform TPS/ISC reset 6-6