Table 1-53 (Continued) 4. With normal rotation speed, difficult to start Table 1-54 70 S/N Operation Test Results Actions 5 Check the fuel injector and the fuel pipe for leakage. Yes Replace fuel injector and fuel pipe No Next step 6 Take out the water temperature sensor, and start the engine. Is the engine OK? Yes Check the coolant temperature and line No Next step 7 Connect an adapter between the ECU and the harness. Check the pin J1-73 of the ECU for voltage. Check the positive power supply line of the above-mentioned ECU pin and the groud wire of the pin J1-01, J1-17, J1-18 connected to the ECU for normal operation. Yes Repair or replace harness No Next step 8 Replace the fuel.
Start the vehicle after warm-up. Is it OK? Yes End No Replace ECU 9 Check if the fuel pipe is blocked or bent. Check the fuel pump pressure regulation valve for normal operation. Yes Next step No Repair or replace 10 Check the interfaces of the fuel pump at both ends for battery voltage with a multimeter. Yes Next step No Repair or replace fuel pump relay and lead 11 Check if the resistance of the fuel pump is correct with a multimeter. Yes Next step No Replace fuel pump 12 Check if the fuel pump is locked. Yes Replace fuel pump Replace ECU S/N Operation Test Results Actions 1 Turn the ignition switch to ON. Check if there is trouble information records with a diagnostic instrument.
Yes Remove the trouble No Next step 2 Check the air filter for smoothness. Yes Next step No Replace 3 After successful start, check if the intake air manifold pressure is between 35 kPa and 65kPa at idle speed. Yes Next step No Remove leakage for the air intake system 4 Gently step on the throttle, and check if the vehicle can be started easily. Yes Check and replace throttle and idle speed passage