4-2 FI SYSTEM DIAGNOSIS FI SYSTEM DIAGNOSIS CONTENTS “C31” (P0705) GP SWITCH CIRCUIT MALFUNCTION........................4-73 “C32” (P0201), “C33” (P0202), “C34” (P0203) or “C35” (P0204) PRIMARY FUEL INJECTOR CIRCUIT MALFUNCTION.......................4-75 “C36” (P1764), “C37” (P1765), “C38” (P1766) or “C39” (P1767) SECONDARY FUEL INJECTOR CIRCUIT MALFUNCTION.................4-77 “C41” (P0230-H/L) FP RELAY CIRCUIT MALFUNCTION...................4-79 “C42” (P01650) IG SWITCH CIRCUIT MALFUNCTION.......................4-81 “C46” (P1657-H/L or P1658) EXCV ACTUATOR CIRCUIT MALFUNCTION...................................................................................... 4-82 “C49” (P1656) PAIR CONTROL SOLENOID VALVE CIRCUIT MALFUNCTION...................................................................................... 4-91 “C60” (P0480) COOLING FAN RELAY CIRCUIT MALFUNCTION......4-93 SENSORS..................................................................................................... 4-95 CMP SENSOR INSPECTION................................................................. 4-95 CMP SENSOR REMOVAL AND INSTALLATION.................................4-95 E CKP SENSOR INSPECTION................................................................. 4-95 L CKP SENSOR REMOVAL AND INSTALLATION.................................4-95 P IAP SENSOR INSPECTION................................................................... 4-95 IAP SENSOR REMOVAL AND INSTALLATION...................................4-95 M TP SENSOR INSPECTION.................................................................... 4-95 TP SENSOR REMOVAL AND INSTALLATION....................................4-95 A TPS ADJUSTMENT................................................................................ 4-95 ECT SENSOR INSPECTION.................................................................. 4-96 S ECT SENSOR REMOVAL AND INSTALLATION..................................4-96 IAT SENSOR INSPECTION................................................................... 4-96 IAT SENSOR REMOVAL AND INSTALLATION...................................4-96 AP SENSOR INSPECTION.................................................................... 4-96 AP SENSOR REMOVAL AND INSTALLATION....................................4-96 TO SENSOR INSPECTION.................................................................... 4-96 TO SENSOR REMOVAL AND INSTALLATION....................................4-96 STP SENSOR INSPECTION.................................................................. 4-97 STP SENSOR REMOVAL AND INSTALLATION..................................4-97 STP SENSOR ADJUSTMENT............................................................... 4-97