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TROUBLESHOOTING MULTIPOINT FUEL INJECTION (MPI) 13A-125 PROBLEM SYMPTOMS TABLE WARNING When touching the throttle valve, surely shut off the driving circuits of the throttle valve. In CAUTION During troubleshooting if the ignition switch is turned to ON with the connectors, etc. disconnected, NOTE: When the racing (2,000 to 5,000 r/min or more) continues on the vehicle stopped with no load during Cooling Overheating The temperature of engine cooling 18 ECO mode In running, the ECO mode indicator shows nothing. 24 Item Trouble Symptom Inspectio Inspection Inspection Item Reference 1 The communication between M.U.T.-III and engine-ECU is not possible 2 The engine warning lamp does not illuminate right after the ignition switch is 3 The engine warning lamp remains illuminating and never goes out 4 Starting impossible (starter not operative) 5 Starting impossible (starter operative but no initial combustion) 6 Starting impossible (initial combustion but no complete combustion) Improper starting (long time to start) 7 Unstable idling (rough idling, hunting) Improper idling speed (too high or too low) Engine stalls during idling (die out) 8 The engine stalls when starting the car (pass out) The engine stalls when decelerating 9 Engine does not revolve up 10 Hesitation, sag Poor acceleration Stumble Surge 11 The feeling of impact or vibration when accelerating 12 The feeling of impact or vibration when decelerating |