[Engine] 2.0hdi Starting issues

[polar]

Hi all some of us on this forum will know about the potential starting issues with the 2.0hdi engine and we know how important a good starter motor and battery are. I found these post on another forum and though they may be useful in giving people the heads up.


Many thanks given to Spider for this info, French Car Forum.


"The starting phase is entered as soon as the injection ECU is energised.
When starting, the injection ECU controls the following elements :
Booster pump (low pressure) (cuts out after 3 seconds, if the starter motor does not crank).
Preheater plugs (if necessary).
Fuel high pressure regulator (rise in pressure).

As soon as the starter motor is operated, the injection ECU sets the value of fuel high pressure from the coolant temperature.

At the beginning of starting, the high pressure regulator is controlled by the OCR worked out by the starting cartographic map.

In this operating phase, the high pressure fuel sensor is ignored.
The fuel high pressure is regulated by one of the parameters below :
Engine speed greater than 20 rpm with at least 4 revolutions completed.
Pressure in the high pressure fuel common injection rail greater than 150 bar.

The starting phase is finished when the engine speed exceeds a value." 

Also have a look atthis link 

http://frenchcarforum.co.uk/forum/viewto...11&t=43319

[Johny555]

So the long and short of this is fit a new starter motor,.job done...