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Discussion Starter #1 (Edited)
Hello all,

I recently introduced myself and my 2006 307 2.0 Hdi SW, Monte, in the intro thread. I mentioned that I was having a few issues with the car, although nothing for a few weeks, until recently. I've had the car for 8 months, and it's been trouble-free motoring for the past 7 months until the car became really sluggish when taking off, which then manifested into the car cranking over, idling for a few seconds then stalling, finishing with a puff of grey smoke, and a 'Warning - low oil pressure' alert popping up on the centre screen, and an 'economy mode active' warning.

Plugged the car in for diagnosis (on generic, non-Planet software), no errors. Replaced battery, took car on a 350 kilometre drive, no issues. A few days later, the car stalled on a highway without warning - it felt like it had run out of diesel, but I had half a tank. Again, 'Warning - low oil pressure' appeared on the centre screen. I was unable to start the car at this point - it cranked over and idled roughly for a few seconds before stalling and letting out another puff of smoke. This happened several times. I then called roadside assist for a tow truck, and when they arrived the car started and drove without issue! Took the car to another mechanic; no error codes!

The most recent problem happened this week, when again, I was driving on a busy highway and the car hesitated and stalled - again, it felt like it had ran out of fuel. Again, 'Danger - low oil pressure' appeared on the centre screen. Cranked it over, and managed to get it off the road, but the car had lost power and just limped for a few metres before dying. I managed to get the car started again, albeit limping, and managed to limp 500 metres back home before it died, and then refused to start for several days, again, idling roughly, then stalling, with the same 'low oil pressure' warning. I started the car several times per day, with the same result occurring. Finally, I booked into a Peugeot garage, and organised a tow, and the car started, albeit roughly and after several attempts, and spewed out smoke for the short trip to the dealer. I got a call from the Peugeot workshop yesterday, who had run the Planet software, but no error codes had shown up. I suggested they keep the car until it refuses to start, so they get a better idea of the problem.

FYI, oil is at capacity, and all injectors functional. The 'Economy mode active' warning is no longer apparent.

I apologise for the manifesto. Has anyone on this forum had a similar issue, or can you point me in the right direction for potential diagnosis and rectification? This particular problem is both intriguing and frustrating!

Thanks in advance,

Josh.
 

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Economy mode is not an error warning - it is informational telling you that the BSI has disabled all non essential electrical systems to preserve the battery because the charge level is low. ECO mode will go away once the engine is running.

I'd suspect the battery needs replacing and a good chance that the alternator as well as it doesn't seem to be providing sufficient charge to charge the failing battery and power the electrical systems sufficiently. If the battery level drops below a certain level it can cause all sorts of weird electrical problems as there isn't sufficient voltage and current for various ECU's to function.

You also would be wise to get it hooked up to Peugeot Planet or Diagbox diagnostics as many generic code readers either cannot correctly read Peugeot systems or worse still - return false results.

http://www.peugeotforums.com/forums/introductions-28/brief-faq-guide-new-members-83170/

http://www.peugeotforums.com/forums/general-discussion-2/how-contact-member-peugeot-planet-diagnostic-28190/
 

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Get them to check oil pressure switch, some models shut down engine as well as put on stop light if oil pressure drops.

Also worth checking fuel rail pressure sensor wiring
 

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Discussion Starter #5 (Edited)
Thank you for your responses - I'll call the dealer tomorrow and pass on these suggestions. Storeman, I replaced the battery six weeks ago, but I'll have a look at the alternator. Oil Pressure switch is worth a look too.

Kind regards,

Josh.
 

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Discussion Starter #6
Problem solved!

Hi all,

I'm happy to announce that the problem as been solved. Monte has been in at a mechanic specialising in French cars for several months, and now is as good as new (as long as you ignore 300,000 kilometres worth of battle scars).

It goes like this:

Mechanic thought it could have been oil pressure. Mechanic initially kept the car for several weeks; Monte was as good as gold, starting and driving as per normal. Then one day Monte died, and just wouldn't start again.

Thought it was the BSI; mechanic ordered a new one. Replaced BSI. It wasn't the BSI; Monte still wouldn't start.

Thought it was the ECU, as no fault codes appeared with the ECU installed in the car. mechanic ordered second hand ECU, installed it, plugged in fault finder; identified faulty EGR valve. EGR valve replaced, car runs as good as new (almost).

Fingers crossed Monte and I will complete our journey to the middle of Australia now.

Also, for those interested, here's a photo of my 1958 Holden Special track car.

Regards,

Josh.
 

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