Table 1-62 (Continued) 13. Slow acceleration Table 1-63 82 S/N Operation Test Results Actions 12 Turn on the fuel gauge valve, and block the fuel return pipe. Check if the fuel pressure is quickly produced. Yes Replace fuel pressure regulator No Repair or replace fuel injector or fuel pipe 13 Check the fuel intake pipe for leakage or blockage. Yes Repair or replace fuel intake pipe No Replace fuel pump 14 Check if the fuel return pipe is blocked or bent. Yes Repair or replace fuel return pipe No Replace fuel pressure regulator 15 Turn the ignition switch to ON. Connect an adapter between the ECU and the harness.
Check the voltage of the pin J1-24 (signal output end of the throttle position sensor), J1-05 (grounding end), J1-20 (as the power supply for 4.5-5V sensor). Is it OK? Yes Next step No Repair or replace harness 16 Check the ignition coil, distributor, high voltage wire, and spark plug for normal operation. Yes Replace ECU No Repair or replace relevant parts 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 Run the engine at an idle speed. Check if the rotation speed is normal.
Yes Next step No Check and repair as per idle speed trouble items 4 Run the engine at an idle speed. Check if the intake air pressure is between 35kPa and 65kPa. Yes Next step No Check and repair