[FONT=Arial, Helvetica]Symptoms of a Faulty Top Dead Centre Sensor
The Top Dead Centre (TDC) sensor tells the Engine Control Unit (ECU) where top dead centre is on the engine.
Symptoms
1) Engine cranks but won’t start
2) Engine begins to idle roughly
3) Engine won't kick over when it is cranked
4) Engine fails to start after a hot run, i.e. won’t start until cooler
Solution
The sensor is located on the top of the bell housing. It is a small black cylinder with a little metal point on the end and has a banana shaped metal bracket with the sensor attached. (Basically directly below the airbox and throttle body)
Remove sensor and wipe with some contact cleaner to see if this rectifies the fault. If not a replacement is required (approximately £17).[/FONT]