Im sure im missing something simple but i've not done a great deal with siemens and not sure if everything works the same way as a bosch setup.
The customer has told me the car was difficult to start for a couple of days and sluggish, when he went out to go to work the following day the car wouldnt start. first thing i noticed was a lack of fuel pump hum, investigated and found the pump motor completely dead. Easy fix i thought.... replaced the pump.. pump is now working but working constantly with ignition on??? tested the low pressure fuel line and its running at 5bar... as far as im concerned it should pressure to 2.5 bar and shut off.. I figure its trying to pressure a "leaking" system.. the pressure to the rail was minimal on cranking tested with scope at rail sensor and on live data.. next i replaced the fuel pressure regulator on the pump as i've had these fail in the open position and dump all the fuel back to the tank. i now have 4500psi at the rail (according to live data) on cranking but still no start.. i have cam and crank signal.. the car is in economy mode.. Will this stop it from starting? i've had a booster pack connected but have brought the battery back to charge over night.. Any ideas please? Thanks in advance
Re: Peugeot 307, Non Start
Posted by Darren Bamford on November 29, 2016, 8:31 pm, in reply to "Peugeot 307, Non Start"
Something not quite right here ????
RHY engine code could have Either Bosch EDC 15 c2 system or Siemens SID 801.
The Bosch system as a in-tank fuel pump positive pressure up to the Filter (blow)
The Siemens system , DOES NOT have a in-tank fuel pump. This systems transfers fuel from the tank to filter with negative pressure (suck)
do you not have any tech info on this car , wiring schematics , pin data , fuel system layout ???.
This is really old hat stuff now , and coming up to 14 years old.
On all PAS models ECO mode will never stop the car from starting. Its just the BSI trying to conserve electrical power once the battery state of charge drops below a certain limit.
I would say its SCRAP.
As your scan tool auto ID this system as Siemens. Maybe it is a Bosch system , so can you trust the DTC data. If you insist in trying to fix this then you have to be 100% sure what you are actually working on first?