11. Idle speed too high Table 1-61 80 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 if the cable connected the the accelerator pedal is locked or tightened. Yes Adjust or replace No Next step 3 Check the canister control valve, fuel pressure regulator, crankcase compulsory ventilation vacuum pipe, and the vacuum booster tube of the brake system for reliable installation or damage. Yes Adjust or replace No Next step 4 Run the engine at an idle speed, keep neutral position, step on the brake pedal, and check if the idle speed is too high.
Yes Next step No 6 5 Clamp the vacuum booster tube. Check if the idle speed beome normal. Yes Repair or replace vacuum booster No Next step 6 Replace the PVC valve. Clamp the crankcase compulsory ventilation vacuum tube. Check if the idle speed become normal. Yes Replace PVC valve No Next step 7 Clamp the canister control valve tube. Check if the idle speed become normal. Yes Replace canister control valve No Next step 8 Check if the idle speed actuator is blocked or locked. Yes Repair or replace No Next step 9 Repair or replace. Check the other parts of the intake air pipe for leakage. Yes Repair or replace No Next step 10 Check the fuel injector seal ring for damage.
Yes Next step No Replace seal ring 11 Check the intake air manifold absolute pressure and intake air temperature sensor for damage. Yes Replace ECU No Replace sensor