peugeot 306 , 2.0L hdi v reg limp mode . » Peugeot 307 forum » Peugeot Central

Posted: Thu 11 Feb, 2010 7:03 am

hi ,a customer asked me to look at his 306 hdi [ 2.0 L V REG ] seems to be in limp mode ,the management light is not working but the engine wont rev more than 2500 rpm .ive scanned with my code reader it says low fuel pressure , can you advise ,is it the high pressure pump or could it be the turbo [ the ecu looks as though it might have been change ] thanks ray. Embarassed

Posted: Thu 11 Feb, 2010 9:13 am

Hi

Low fuel pressure will relate to what it says and be the most likely cause for limp mode activation!

I would start by checking the fuel system i e filter for debris ( metal fillings) I have also had issues with connector to pressure switch , yellow 3 pin and even pressure switch itself!!

Live data reading would be advised before you condem the HP pump and i dont think turbo will be causing that fault code

crow

Posted: Thu 11 Feb, 2010 4:29 pm

hi crow ,the filter housing has metal filings in it also when i restarted the engine i tried to rev over 2000 rpm and the engine stopped ,i switched off and restarted it , is that the low presure pump , ray. Rolling Eyes

Posted: Thu 11 Feb, 2010 6:00 pm

Hi

Could be the pump in the tank if its a bosch system, not if its siemens , its not un common to get those fillings in the filter housing , just depends how much is in there ? i would certainly strip and clean the fuel system and replace filter to start with!! Then Live data to check pressure readings! should be 250 to 300 bar at tick over , you can take voltage readings from the pressure switch but from memory i cant recall those readings , if you have access to autodata you should find them there!!

Crow