406oc.co.uk

This is a problem on a friends 90 estate with 130,000 miles

The car starts up and will either die within 10 seconds, or it will start running and then quit before a minute is over.

The fuel filter has been changed, before i changed it inside was the yuckiest ould creamy shite I've ever seen, it took quite a bit of blowing at the filter housing to get it clean, it appears the car has ran on some of the fine dodgy diesel available here.

PP2000 says the following:

- air flow meter signal short circuit to earth. flow too low
- fuel pressure regulator. switching off of the engine requested but regulator still active
- fuel high pressure monitoring. pressure lower than the minimum pressure
- fuel high pressure monitoring. diesel high pressure regulator jammed.
- permanent fault. fuel high pressure monitoring. lack of pressure (leak)
- intermittent fault. coded anti-start operation. function faulty.
- intermittent fault. clutch switch signal. consistency with vehicle speed

after running the car for a bit and resetting the codes this was the only code that came back:
permanent fault. fuel pressure regulator. switching off of the engine requested but regulator still active.

The engine has a leaking injector, identified by a pisht sound from the 3rd injector and a feeling of air getting past it.

However i think that if the fuel pressure regulator was changed it would get the car going, is the pressure regulator the red plugged sensor to the right of the fuel rail, or in the tank pump?

The pressure regulator was the problem with the HPi estate that I got from Dai, the symptoms were the same, engine would run but die after a few seconds.

On the HDi I think the pressure regulator is on the back of the high pressure pump under the bonnet.


http://www.ebay.co.uk/itm/PEUGEOT-EXPER ... 232703e664

Ah one of these then:
http://www.ebay.co.uk/itm/PEUGEOT-406-E ... 336d3ead80

£175 is a lot for a sensor, can they be cleaned to get them going? I have the spare engine in my garage but am holding onto parts like this just in case i ever need it for my car.

The one for the HPi cost about the same.

When I took it off there is a solanoid in the sensor you should be able to shake it and hear the pin rattling, if not then it's probably stuck.
The new one I bought rattled and the pin was nice and free, the old one was stuck solid.

As an experiment I boiled the metal part in boiling water then bashed it against a hard surface a few times (after I had soaked it in WD40 for a while)...it did actually free off! I now have a spare, though I haven't bothered to fit it on the car to see if it works....I think it will!

Might be worth soaking it overnight in WD40 or a good penetrating oil to see if it will free off.

Ill give it a go in wd40, thanks jasper.

I suppose with the HPi parts are a bit rarer, with a HDi you could nearly get the full working engine with pump etc for the price of one of these sensors

BTW have you still got Dai's old HPi, is it running well?

Yes, the HPi is doing well, I went through it from top to bottom and replaced every faulty/worn part I could find.
The car is in A1 condition except for a minor annoyance with a slight jerkiness when cold, I'll have a look at it when I can be bothered as it's only minor....maybe the TPS as there were TPS codes the last time I ran PP2000 on it.
It's really good on fuel, slightly better than my 110 HDi Expert van.

I went down to the breakers yard, and got a fuel pump from a 206 hdi 90, they wouldn't sell the regulator on its own and only charged £70 for the pump. I planned initially just to swap the regulators, but the regulator on the new pump had rusted screws and wouldn't come off, so i changed the whole pump which took a bit of time. End result though was after turning the key to the ignition on position 10 times to put fuel up to the pump the car turned over for about 5 seconds and started up without a hiccup, and ran for 5 mins without an issue.

I turned it off, put the wheel arch liner back on, wheel on and it was taken for a drive up the road and its going quite well, its a HDi 90 but it apparently has had the cat removed so it doesn't feel too sluggish.

There is still the issue of the leaking number 3 injector, the area around it is all black soot, what is the best way to deal with this, an injector from another car, or a new seal for the existing one?

black soot around the injector just means it will need a new copper seal.

You need to have a google.
There is currently an issue with diesel which they believe to be down to bio content which causes this yucky goey mess your on about!
http://www.talkford.com/index.php?/topi ... ith-diesel?

Hmm. re link, interestings thread,
note comment about tanker driver,.

ialways had that thinking too, iwonder if they..' do actualy piss in the tanks, not that it says that but
mention of adative by truck driver, (they couid be putting anything in, )

im staying with petrol power frig it,,

That is quite interesting to read about, i wonder will the oil companies admit to making a mistake and offer free filter changes to affected customers.

Diesel here in Northern ireland is quite bad, especially near the border there is a lot of fuel washing going on with red and green diesel getting washed into clear using various chemicals which cause problems, if you read the news here they are constantly finding and closing down illicit fuel plants.
unless you go to the main brand fuel stations its hard to know exactly whats going into the tank.

There used to be nowt wrong with abit of cherry derv (years ago)

the police are on it like Wallace &grommet these days aint worth the risk,

there was aplant up north washing it a few year back but it seems the fleece can still tell if its cherry or not,

lozz wrote:There used to be nowt wrong with abit of cherry derv (years ago)

the police are on it like Wallace &grommet these days aint worth the risk,

there was aplant up north washing it a few year back but it seems the fleece can still tell if its cherry or not,

not worth the risk now, i got a caught a few years ago and haven't used it since , was good while it lasted

I got a call from my neighbour saying the cars playing up again, it drives for a while then if turned off it can take ages to start again.

Would this be the injectors leaking back?

Bailes1992 wrote:You need to have a google.
There is currently an issue with diesel which they believe to be down to bio content which causes this yucky goey mess your on about!
http://www.talkford.com/index.php?/topi ... ith-diesel?

Lots of years ago, as a 21 year old in 1973/74 I drove buses for Glasgow Corporation Transport.
In one of the winters, the night-time temps were down to -17 degrees.

To combat the waxing, the depots just left the engines running all night.
For me, it was lovely .... arriving about 5.30am on the early shift, climbing
up into a cosy warm cabin.