20 Most Recent 2005 Toyota Yaris 1.3 Questions & Answers

It's random misfire

The idle is generally higher along w the fuel consumption when cold. Poss coolant sensor,, all sensors work together to adjust idle & adjust air/fuel mixture. A bad thermos would give u other symptoms too, {bad heating/ AC) Good luck scan it 1st & have all the SENSORS READING READ & ck for codes.

the Toyotas have on the flexy hose connecting the throttle body and the air filter the hot wire air flow meter. Just remove the connecting plug, unscrew the two screws and pull it off. On turning it you should see deeper the hot wire element which when is dirty cuts out the power of the engine on acceleration and causing it to like a donkey. The only thing you have to do is just remove the "O" ring on the outer side and by using a carburator cleaner spray on the hot wire well to wash it and let it dry on its own. Fit the "O" ring and screw it back on the flex hose and drive it.

toyota vios

Check the: 1 Cylinder compression/ valve clearance. 2. Ignition system. 3. Spark plugs. 4. Fuel pump pressure. 5. Injectors.

If it is without Oxygen sensors, then it must be having Idle Mixture Adjustment near the air filter box. It is a variable with hole like adjustment and printed L (lean) and R (rich) on it.

Do the following: 1. Clean the throttle body from inside. 2. Adjust the spark plugs gap to 1.00 mm. 3. Check fuel pump pressure. (44 Psi - 49 psi) 4. Remove the negative battery terminal for 5 minutes. 5. Connect the battery terminal. 6. Check the engine oil level and coolant level. NOTE: Before starting the engine shut off all lights and loads for example room light, blower, radio, parking light etc. 7. Start the engine and hold the throttle at 3000 rpm till radiator fan comes on. 8. After the fan comes on release the throttle pedal and let it idle for 10 minutes.

No initial combustion (engine does not start) 1. ECM power source circuit 2. Crankshaft position sensor 3. Camshaft position sensor 4. Ignition system 5. Fuel pump control circuit 6. ECM 7. Voltage output circuit Engine cranks normally but difficult to start 1. Fuel pump control circuit 2. Compression

There could be number of abnormal engine noises and their remedies. To start with just get the alternator bearing, idle pulley bearing, compressor bearing and the water pump assembly be checked.

Disconnect the battery negative terminal. 1. Wait at least 90 seconds after the ignition switch is turned off and the negative (-) terminal cable is disconnected from the battery before starting the operation. (The SRS is equipped with a back-up power source, so if work is started within 90 seconds of disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed). 2. Do not directly expose the steering pad, front passenger airbag assembly, center airbag sensor assembly, front airbag sensor, front seat inner belt assembly, seat position sensor, occupant classification ECU, front seat side airbag assembly, side airbag sensor, curtain shield airbag assembly, rear airbag sensor or front seat outer belt assembly to hot air or flames.