Peugeot 307 (2001 - 2007) - 02 2.0HDi engine runs on when turned off

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Wed 9 Sep 2009 19:29
02 2.0HDi engine runs on when turned off - colin882
hi all our car runs on when we switch it off anyone got ant ideas? thanks to all

Edited by Dynamic Dave on 10/09/2009 at 01:40

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Wed 9 Sep 2009 23:06
02 2.0 car runs on when turned off - Peter.N.
Is this petrol or diesel?
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Thu 10 Sep 2009 01:05
02 2.0 car runs on when turned off - datostar
Wow, this is a blast from the past! Used to indicate a pressing need for a decoke. Carbon deposits in the combustion chambers would get red-hot, sufficient to ignite the fuel vapour with the ignition switched off. Most impressive was when you parked the car, walked away and heard the engine fire up again. As for the old diesels, sometimes there was no stopping them at all. I don't suppose I'm being very helpful here. Sorry.
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Thu 10 Sep 2009 01:41
02 2.0 car runs on when turned off - Dynamic Dave
Is this petrol or diesel?


A forum search shows that it's diesel. Edited header to reflect this info. DD
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Thu 10 Sep 2009 08:47
02 2.0 car runs on when turned off - colin882
hi all yeah sorry its a diesel
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Thu 10 Sep 2009 12:26
02 2.0HDi engine runs on when turned off - andrewuwe
Does it stop if you use the immobiliser?
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Thu 10 Sep 2009 12:35
02 2.0HDi engine runs on when turned off - Dave_TD
I understand the phrase "runs on" to mean "keeps running for a handful of seconds after the ignition key has been turned to the "off" position". Is this what you mean? Or do you mean when you attempt to turn the engine off it just keeps running and you have to stall it to kill it?

If it's the second one then it will be the stop solenoid on the fuel pump.
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Thu 10 Sep 2009 12:50
02 2.0HDi engine runs on when turned off - colin882
hi dave it just runs on for a few seconds after switching it to the off position. thanks
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Thu 10 Sep 2009 13:34
02 2.0HDi engine runs on when turned off - RichardW
No stop solenoid on an HDi, the ECU cuts the fuel injection when certain parameters are met - one of these is that the rail pressure is less than some figure (120bar IIRC). Running on is a sign that the rail pressure sensor may be going faulty. You need to get it on a decent diag tool that can read live data to see what the rail pressure is doing at shut down, and then take it from there.
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Fri 11 Sep 2009 22:58
02 2.0HDi engine runs on when turned off - colin882
ok all had the codes read and came up wiv fuel pressure regulator, think the bloke said the code was p1138 but dont hold me to that. could it be the regulator or the pump as think the regulator is on the pump on these any help v much appreciated. thanks
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Sat 12 Sep 2009 11:08
02 2.0HDi engine runs on when turned off - sarka1230
theres an electic pump in the fuel tank these can and do fail ,which will give low pressure, when did you last change fuel fillters? steve
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Sat 12 Sep 2009 16:33
02 2.0HDi engine runs on when turned off - colin882
filters were changed bout 3k ago, its got the bosch system on it has that got the pump in the tank? thanks
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Sat 12 Sep 2009 20:59
02 2.0HDi engine runs on when turned off - steve_earwig
Yes. Pressure regulator is part of the pump :(
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