Hi All, BSI sleep mode, causes no sleep for 6 weeks.

[RocketRonMorris]

Hi Capncol, The timing belt was checked this morning, We were able to locate the cam bolt and flywheel bolt at the same time, We then decided to look at the fuel lines, when the primer bubble was compressed every two or three pumps a small amount of bubbles appeared in the clear fuel line, so replaced the two main fuel pipes that run across the engine to the fuel filter with clear pipes, when priming the fuel you could see the odd air bubble coming from the filter but not going to the filter, the fuel filter was new, but thought the air leak was being caused by the filter so eliminate the fault I bypassed the filter and the fuel lines became clear of any air, Tried starting the engine but still not starting, once again check the injectors for a power supply when turning the engine over but still no power, Something is telling the ECU not to supply the injectors, So now I've had a forth engineer go home with his tail between his legs as he was sure the fuel problem was going to be the reason for the engine not starting. and I've not got a clue what to do next. The car is in very good condition with 65,000 on the clock and as a street value of about £1750 if it was a runner, but it's now taken up 7 weeks of my life, I don't think it's worth spending any more time on it.

[RocketRonMorris]

Hi Capncol, I'm having second thoughts about my partners 206cc I can't believe I'm giving up so easily.
Can you help by telling me please what parts of the engine if they're faulty would tell the ECU to tell the injectors not to start, ie if the fuel pressure does not reach 120 psi it will not tell the injectors to operate,
The car as once more been diagnosed and a fault P1351 (Preheating relay circuit relay supplied and plugs never supplied.) shows up. I'm thinking that the only electrical part I disconnected when doing the injector reseal was the large plug on the top of the engine which supplies the Heater plugs, the injectors and I think the feul pressure censor. I would very much appreciate your help ............. Thanks Ron.

[gazza82]

Have you googled P1351 and seen what comes back?

I did and peugeotforums have a couple ... one suggests change all the glowplugs and the other the key (ie immobiliser is on)!

http://www.peugeotforums.com/forums/307 ... try-31689/

(You might need to subscribe to view it .... )


Once you get to P1*** codes they start to get muddled ... not all manufacturers use the same description ...

http://www.berlingoforum.co.uk/showthread.php?tid=4725 ... suggests P1351 IDM input circuit Malfunction/Ignition coil control circuit High voltage

Whatever than means!

[Capncol]

I will try to put this as simply as possible so if I sound like the grandma sucky eggs thing then I'm sorry.

A diesel engine is a compression ignition engine. It works by compressing the air in the cylinder which heats it up above the flash point of diesel so that when diesel is injected into the hot air at the correct time it will spontaneously ignite and drive the piston down thus turning the engine.
So there you have it.
All a diesel needs to run is air, compression and diesel (at the right time)
Take any 1 out of the equation and it either won't run, or won't run properly.

It's unlikely to not have any air as that would mean a complete blockage of the inlet so we can rule that out as even with a bit of rag sucked in, you will still get some air through and it would run albeit roughly.

No diesel?
Yes, if the injectors aren't doing their bit, it will stop the engine running, but we have sort of proved that by bypassing them with easystart. Even if the injectors weren't firing, the easy start would have fired- unless..........The engine has no or low compression!

If the easystart won't ignite, you haven't got enough compression to heat the air hot enough to promote ignition.
Even without the injectors, the easystart should have caused a combustion (The horrible rattling pre-ignition sound you get from easy start)
So because you didn't get this, and you are certain easy start was going into engine and not the other direction, it really only leaves one conclusion- lack of compression= lack of heat= lack of combustion!

You may have injector or immobiliser probs as well, but you have to sort the compression first.

It may simply be that your hydraulic tappets have collapsed down and the valves aren't opening properly given the length of time it has stood, it could also be timing belt slip (already checked) or if your engine is the 16V with chain driven inlet cam, then the chain drive may of failed in some way.
It could be the engine isn't cranking fast enough to generate enough heat.
You need to first ascertain why the compression is low, then look at the injectors. A compression test would help. Another dodge you could try first, is squirt some easystart in then immediately attempt a tow start. If it runs even briefly on the easy start then you have a starting point. If you do try this, let us know what happens and I can give you some pointers.