If unexpected shocks are felt during driving or the engine stalls suddenly, shake the crankshaft position sensor harness. If this causes the engine tostall, check for poor sensor connector contact.
If the tachometer reads 0 rpm when the engine is cranked, check for faulty crank angle sensor, broken timing belt or ignition system problems.
If the engine can be run at idle even if the crank angle sensor reading is out of specification, check the following:
● Faulty engine coolant temperature sensor ● Faulty idle speed control motor ● Poorly adjusted reference idle speed |
The engine will run without a crank angle sensor signal, but will not start. Once the sensor detects TDC, the data is stored until the next re-start.
Check Item | Check conditions | Check content | Normal state |
Crankshaft position sensor | ● Engine cranking ● Tachometer connected (check on and off ignition coil by tachometer) | Compare cranking speed and multi-tester reading | Indicated speed agrees |
Check Item | Check conditions | Coolant temperature | Test specification |
Crankshaft position sensor | ● Engine: Running at idle ● Idle position switch: ON | When -20°C (-4°F) | 1,500~1,700 rpm |
When 0°C (-32°F) | 1,350~1,550 rpm | ||
When 20°C (-68°F) | 1,200~1,400 rpm | ||
When 40°C (-104°F) | 1,000~1,200 rpm | ||
When 80°C (-176°F) | Idle rpm |
