308 hdi 90 cut out, could be P0192 caused it ?

[tmead]

0Leaving for work this morning and the car cut out a mile up the road. orange EML light, but I dont recall a beep or a message. Not even a cough when I turned the key - it wound over OK though.
Towed it home and had to try to use the starter and 1st gear to haul it onto the drive, and it coughed and fired up. Antipollution message on the display, but seemingly running fine.
Started again this evening just fine.
Codes logged:
P1351 - the inevitable glow plug fault that has been there pretty much for ever
P0121 - throttle error
P0401 - egr insufficient flow
P192 - high pressure sensor contact

I havent got lexia up and running on my replacement laptop yet, just code read using a simple reader. I havent dug into timing of the codes. Not sure if the simple reader will tell me that - I'll need to take a look. Hopefully readings from lexia later in the week or next w/e.

Strikes me that the rail sensor / connector is the most likely candidate ?

I see that there are mentions of connector/loom issues on the hdi rail sensor. Maybe this should be my next step ?

[PaulC5]

Before you delete the codes look at the freeze frame data to see what was happening when the last code was stored. If P0192 was the last one then it may show a low fuel pressure in the data.

[Huskyxantia]

Id say the fuel pump in the tank sounds like its on its way out. Or could there be water in the fuel ? What happend to me about 8 yr back driving my 2.0hdi 110 xantia driving along as normal then the engine just stopped. I was miles away from home but knew the area well and walked to a small independent garage about half a mile back down the road , I told them my problem, they drove me back to my car , threw a jump pack on the battery , cranked the car but no start, he checked the filter , water, cleaned it all, popped everything back as it should be cranked the engine , it fired up into life, he asked if id used there morrisons service station, guilty as charged i said, he then took 2 cans out the rear of his truck , syphoned my fuel iut of my tank , which the water was clearly visible , he then went back to a garage just past his place of work ,came back 2 new cans of diesel , topped the car up , ran the car ,it ran ok , a bit rough at first then settled down, he came with me to the morrisons garage we got my money back for the fuel, I paid him what was owed and went about my day , car ran fine after all that,

Not saying yours could have the same issue but ive seen this come up on other forums and half the time it was water in the fuel, another car I owned used to let water in via fuel cap whenever it rained really hard, I changed the rubber washer to the fuel cap and that stopped that happening again.

If it is the pump in the tank , I dont think the car would start again , it would just crank and nothing else, if the egr is stuck closed , is that something that could stall the engine?

[tmead]

Thanks Husky, theres a sensor for water I think ? Definitely a sensor of some kind that scews into the bottom of the filter. I know becasue I embarassed myself by trying to take one back which appeared to have the threaded sensor hole closed in the moulding, and the person at the shop pointed out the instruction to wind the sensor in and break the moulded part open if it was needed. i think i have a spare filter, so could swap it, tipping the filter contents into a jam jar to see how much crap is in there.

I had a tank fuel pump failure in a 306 hdi years ago, and it did just stop with no warning. I'd forgotten that! The tow truck driver did try banging the bottom of the tank with a lump of wood, but it didnt restart. He wasnt all that surprised, but it was worth a shot ! Not quite sure how to diagnose this if its intermittent, and I dont want to end up stranded somewhere awkward.

I think the EGR blank may have been swapped across to this engine from the original 50K ago, so the EGR message isnt entirely surprising. Never popped up a light or antipollution message for that before though. Original engine ran for around 100K with the blank before the cat heatshield wore through the oil cooler and dumped the water onto the road at 185K miles, so I'm pretty confident the blank isnt an issue on this hdi 90 engine. (no emissions stuff, no dpf etc).

[tmead]

Actually, thinking on it, does the Hdi 90 have an in-tank pump ? I think its just a sender unit in there ?

[tmead]

Just had a chance to look at freeze frame, and it shows 102150KPa, 14815psi.
That's quite a bit, and up in normal range I think ? Looks like the sensor was reporting diesel was pumping OK?

No diagbox yet. Replacement laptop has refused the virtual machine copy and I'm starting afresh!

[PaulC5]

Possibly 1021 bar fuel pressure is too low at 1975 rpm but I have no reference values. In this topic a similar fault was fixed by replacing the pressure regulator on the fuel pump. PF Jones sell pressure regulators, reconditioned ones as well as new one and could be cheaper than a Peugeot dealer. If you can check the high pressure fuel pump it may have a label on it with its part number which will help getting the correct part. viewtopic.php?t=80521

[tmead]

Check the label ? That's a good one. The hp pump is about the least accessible thing on this engine, and that's saying something !

I have a 'spare' hp pump, but it's been sat in the garage for 2 years. Mind you, the reg should be clean.

[PaulC5]

To see the label on our C5 pump I had to use a mirror and torch but to read it then took a photo of the mirror image so it could be enlarged, all not easy but I managed it. Then to replace the pressure regulator on it needed thin long torx bits with poor access and in the end I never replaced it. I did consider removing the pump but that was also a lot of work.

[myglaren]

A borescope attachment for a mobile phone perhaps?
Any amount for not much money.

This sort of thing:-