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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MPI) 13A-15 NOTE: If malfunctions have been detected in DRIVE CYCLE The following five drive cycle patterns are performed on the diagnosis codes monitored during the vehicle CAUTION Two technicians should always be in the vehicle when carrying out a test drive. 81 Long-term fuel compensation (cylinder 1, 4) % 82 Short-term fuel compensation (cylinder 1, 4) % 83 Long-term fuel compensation (cylinder 2, 3) % 84 Short-term fuel compensation (cylinder 2, 3) % 87 Calculation load value % 88 Fuel control condition Open loop OL Closed loop CL Open loop owing to drive condition OL-DRV. Open loop owing to system malfunction OL-SYS. Closed loop based on one oxygen sensor CL- H02S 89 Fuel control condition Open loop OL Closed loop CL Open loop owing to drive condition OL-DRV. Open loop owing to system malfunction OL-SYS. Closed loop based on one oxygen sensor CL- H02S 8A Throttle position sensor (main) % − Diagnosis code during data recording - Item No. Data Unit Procedure Monitor item Diagnosis code 1 Catalytic converter monitor P0421, P0431 2 Oxygen sensor (front) monitor P0130, P0150 3 Other monitor P0135, P0136, P0141, |