Fuelpressure

[paul61]

hi everyone

Has anyone got an idea what the fuel pressure shoud be when turning it over to start 2.2 diesel, i have a lexia 3 and could check this, the car will not start or takes a long time of turning over, have ordered a crank sensor as they are cheap???

                                                     many thanks

                                                                  paul

[Johndouglas]

Coastline will be along shortly and no doubt he'll be able to tell you.   But is your starter motor turning briskly.   My C5 suffered a bout of difficult starting and eventually it was found the motor wasn't turning fast enough to build up starting fuel pressure.

[coastline taxis]

 for non starters the codes arnt much help at all. use your lexia and go to live data and what your looking for when cranking it over is

 

rpm needle should be at 250 ish  if not then check battery voltage/supply and starter

fuel pressure should be 260ish when cranking.  if not then start checling  the fuel components

cam and crank syncronisation If not then check sensors and wiring/fuses etc etc

immobilisor/key/ecu syncronisation. if nor then start checking key fob/fuses/wiring

 

Any of the above will stop the fuel flowing. When your in live data switch to graphs and youl be able to see if the crank is working before you order a new one