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Old 04-09-15, 09:48 PM   #1
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Default Fuel rail pressure/depolution light

Hello All,
I have a 150 THP, 2008... love it to bits apart from running rough when cold, depolution light comes on. It's a long story...as many of you no.
Changed:
All coils
Plugs
Cam sensor
Crank sensor
ECU TESTED (ecu doctor) ok
Peugeot have said it may be an ech or wiring fault...they don't know!!!
Tryang to get to bottom of it. The car is fine once warm.
I have been watching Fuel rail pressure and the fault occurs when the FRP is at 800kpa on tick over. But once up to temp FRP comes up to 5000+kpa and fault goes.
Starting to think it is a high pressure pump issue.
Can anyone check there FRP please? Mine does not change even if I rev it, until warm anyway.
Thanks
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Old 06-09-15, 12:23 PM   #2
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Any fault code been read? Would suspect high pressure fuel pump.

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Old 06-09-15, 01:14 PM   #3
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Fault codes are all cylinder misfires,
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Old 07-09-15, 09:32 AM   #4
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https://www.peugeotforums.com/forums/...gnostic-28190/


https://www.peugeotforums.com/forums/...70/#post529130
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Old 07-09-15, 11:17 AM   #5
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yeh need get the HPFP measured, would imagine its past its allowed tolerance level now.
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