Fudgey

iTrader: (4)

Afternoon all, woman at work has a 206 quicksilver which about 6 weeks ago developed a misfire.
its been in a garage ever since and they have not fixed it, supposed to taking the car back later unrepaired.

all i know is it started to mis, last time was the coil pack, this time its not.
garage has supposedly had the ecu tested and that is ok, and there is some other module by the the ecu which is also ok...

does anyone have any ideas about them? i changed a droplink on it once for her, and that was a pain in the ass!

edit, just had this off her "It came up on the dash board catalytic convertor fault, anti pollution fault. He checked injectors and changed 1 I believe, then he said he checked the coil pack, then said it was the ecu board? As much as I know and understand."


cheers

oldford

First of all: what's the modelyear and the engine code (positiion 6 tru 8 of the vin).

Is the exhaust emission been checked with a gas analyzer? If yes, what are the values?
Have the fault codes been read? And if so what were they? Preferably with numbers.
Misfires can also be cause by a mixture problem - usually to lean.
That may be caused by defective sensor(s), air leaks, low fuel pressure etc.

Fudgey

iTrader: (4)

cheers for the reply mate, ill ask and report back

nicksaph

i have had problems with no 1 injector on 206s. the washer jet is just above no. 1 inj and drips into the multi plug and causes problems.

Fudgey

iTrader: (4)

She never got back to me with the reg or vin number, but someone else has been out snd had a look. Run diagnostics and its saying injector 3, she thinks the garage changed injector 2...

Ill pass on about the injector 1 issue. The that went out has taken a wiring loom away to test, i can only guess for the injectors?

RichieST

iTrader: (2)

The injectors might relate to firing order and not 1-4 cylinder order if you get what I mean, which is why he might have changed 2 instead of 3?

Fudgey

iTrader: (4)

Would be semi sequential on something of that age surely? Its a 2003 i thnk.

So 1 and 3 would fire and 2 and 4 at the same time.

RichieST

iTrader: (2)

That would be the case of the spark plugs, but not injectors?

oldford

No, it's a full sequential injection. As a rule of thumb semi-sequential injection hasn't been used since the mid 80's. If it was a semi-sequential injection you would not get a fault on cylinder 3, only on group 1 and 2.
To make life a bit more complicated the French manufacturers start counting at the gearbox side, not the distribution side of the engine. And the fault codes may be in firing order. So a fault on the 3rd cylinder in the firing order (1,3,4,2) would be cylinder 4.
And yes, washer fluid may drip on the injector of cylinder 4.

There have also been reports of chaffing of the wiring loom on top of the engine.

Fudgey

iTrader: (4)

OK, update a month on...

its still has a permanent misfire on cylinder 3...

its been at 2 garages now, the latter being peugeot and she has had enough/doesnt want to spend any more more money on it.

its had a compression test
its had injector 2 and 3 replaced first garaged changed no2, not no3..
its had a new injector loom fitted
its had the ecu tested (twice i believe)
its had the latest software put on the ecu
its had a new coil
the inlet has been taken off and cleaned

some faults have cleared but one or two still remain and its in limp home mode.
guy at work has an obd2 reader - will this give the codes of the faults if used, or is it specialist pug stuff that needs to be used?
ill ask if she can get the fault codes.

the car is in limp home mode, still misfires and wont rev over a certain rpm

and finally, she has said i can buy it for £150....
not sure if its worth a punt or not...

Fudgey

iTrader: (4)

to add:

"After purchasing a new injector and putting it into Injector3 it cleared 2 faults.

I’m sure the permanent fault is ME744 ?? Only 1 fault left which he cant clear"

a quick google found this:

P0117
For ME7.4.4 as fitted to TU5jp4; Check for the additional, 118 degree, heat switch failure. It shorts out the coolant thermistor circuit. (Parallel wired).
For MM6LP, I have had occassions of the temperature sensor reading excessively high temperatures, around 140 °C. With this sort of temperature, look out for other faults relating to long term temperture control. Such as long term fuel trim etc..

so im wondering if its just the temp sensors that have gone faulty.. they are £35ish from euro car parts. but i would have thought it would cause a general misfire, not just on cyl 3?

hmm

gcfcos

Agree with no4 injector, changed one yesterday that washer fluid had dripped into and rotted it out, although the fault code did lead me to injector. Engine reads differant way round then other engines, no4 is cambelt end and no1 gearbox end

Fudgey

iTrader: (4)

yeah, its had 2 and 3 replaced, and loom..

still no worky...

Bailes1992

French cars have a habit of the injectors being in firing order rather than cylinder number. Pull the injectors one at a time and read the error code to work out which one is which!
Also if it isn't in firing order then the french count their cylinder from the gearbox end. So the cylinder closest to the gearbox is cylinder 1.

Cossie Sean

why are poeple just throwing parts at it for no reason?

surely its been diagnosed with an Osilloscope at the injector and the ECU plug to determine said faulty injectors, then the faulty loom

or are they just doing it because the fault codes say so?

Fudgey

iTrader: (4)

From what i gather, because the fault codes read as injector 3 fault.

Anyway, she has now said she wont sell it to me for £150 as she cant afford to buy a new car so will pay me to fix it...

We have scopes at work, but the car is sorned, has a loose exhaust clamp and she wont drive it to our work and leave in the carpark..

Im getting fed up of offering to have a look really so i was gonna buy, hopefully fix it then make a decent profit on it... So thats not gonna happen now lol

Loose clamp is on the middle section, so not sure if that will cause any problems. She doesnt think the exhaust is leaking.

The pug tech that looked at it says the next step is to change the tappets...

Im not so sure!

richard youll

For clarification on your injectors - I'm confused no one knows this on here,

Generally cars engine are number 1 to 4 from the pulleys

Peugeots 1 to 4 are from the flywheel hence why the garage changed the correct injector to the code in the ecu

I personally change all 4 on these tu's as they block up too

richard youll

By the way be carefull that someone hasn't put the faulty injector back in thinking it was ok,

On these leave the injectors in the rail pull the rail out and get a mate to crank it over you will see a nice misting coming from each injector if they are all ok I'm sure you might find the faulty one is still in there I had this happen when I got a car in from another garage that had been injector swapping because they didn't know the French no. System

Fudgey

iTrader: (4)

She did show a pic of the injecor rail out that the pug tech took, clearly showing inj2 was a new one so he replaced inj 3 as well.

Ive offered many times to have a look but i dont get much time and she is not prepared to drive it a few miles to where we work where we have scopes etc so i doubt ill look at it...

Just funny that it was in peugeot for a few weeks with 3 techs looking at it in their lunch times, and they cant fix it.

Oranoco

Not really, they're bloody useless. The Peugeot Parter van I had last week had a shocking brake pedal and had loads of travel for little braking effort. Dealer had the van for 3 days before ringing to say they can't find a fault and the brakes are fine. I won't be driving that bloody van again

vroooom ptssssh

Tell her to jogg on

I've changed injectors and coil packs on those engines a few times, tried swapping injectors around to see if cyl 3 fault shifts to another cyl? or switch injector plugs 3 for 4 etc, infact i dont think you can on those looms as the plugs are in a solid plasic casing??
Anybody flung a new set of spark plugs in it....or swapped them around?

Fudgey

iTrader: (4)

Sounds like when ats in swindon fitted new discs and pads to my old citroen dispatch, drove off the forecourt 1/4 to a roundabout and very nearly rear ended someone as my foot went to the floor. Luckily they adjusted the handbrake and i wasnt going fast. Went back and threw the keys at the pricks. They had the van 2 months and couldnt fix it. It went to citroen and they fitted gen discs and pads and low and behold it was ok! Cost my old company £3500 in total tho

Fudgey

iTrader: (4)

Thats what i would do if i looked at it, try to move the fault. Not sure if its had plugs. Cant be bothered any more!!

GVK.

We will soon know that French cars have the cylinders 1-4 arse about piss to 'normal' cars

Fudgey

iTrader: (4)

I dont think its been mentioned...

Cossie Sean

Start from the beginning with the basics, compression, spark, fuel.

the tappets shouldnt need changing, its adjustable setup as its an 8v! lol

PM me if you look at it yourself, i will talk you through what to check and how mythodicaly.

Sean.

GVK.

In a world of fault codes and diagnostic machines a lot of basics get forgotten.

Stevie RS Boy

i am suprised no one has got to the bottom of this yet, its a simple 8v TU engine, i bet its something simple like a blow head gasket betwen 2 cylinders

botters

iTrader: (2)

make sure its had the correct make of injectors replaced also there are at least 3 varients on these some low impedance and some not and they are not interchangable

Fudgey

iTrader: (4)

Cheers fellas.

Well im going on holiday on friday so i doubt ill get to have a look at it. If she had taken my offer 2 months ago then it may have been a different story.

Yes i could just go round her house, but as said im bored of offering...
Fact is she has fuck all money, just spent £400 and it still doesnt run. She changes her mind daily what she is going to do, so i am probably better off leaving it as no doubt if something else went wrong that would be my fault and she would expect me to fix it...

Id still give her £150 to buy the thing tho lol