Dicko&Vacant

iTrader: (3)

We have a 55 plate vectra sri cdti and over the last couple of days its been properly stinking inside the car, (that horrible diesel smoke on start up smell) and just noticed tonight its got a missfire upto 2k revs?

just wondered if any vauxhall technicians had an idea.

vaughant

iTrader: (1)

My merc cdi does the same and it's a leaking injector seat,common on mine.try putting the heating on recirculation to avoid the smell.

Open the bonnet with it running(engine cover removed) and check for leaks or a noise that sounds like Thomas the tank engine,a sure sign there's an injector fault somewhere.

Dicko&Vacant

iTrader: (3)

now you say that there is a ticking noise coming from engine which had only recently started.

ste_gt

Try the exhaust flexi downpipe, mine was split and stinking the car out when I stopped and pulled away (smoke gathering then getting forced up through the vents).

vaughant

iTrader: (1)

Sounds like then,mine also seems sluggish now pulling off but it's a big old girl so never going to beat much at the traffic lights grand prix!!should be easy to locate with the cover off,I think the injectors are pretty accessible on them.

What's posted above could also be correct,although I doubt you'd get the missfire then.

Dicko&Vacant

iTrader: (3)

yeah didnt think id get a missfire from a blown downpipe, ill have a look tomorrow then get it on a computer to make sure

vaughant

iTrader: (1)

Hope it all turns out ok fella.

chris cdti

The joys of the Z19DTH/DT

Does the misfire go when the engine is warm?

If the engine is running fine when out on the road have you noticed a lack of power below 2000RPM?

Also have or can you do an injector leak off test?

MJ_RST

Has it got starship miles??

There is a software update for these, small fuel quantity adjustment.

Plenty of pos causes, injectors, rail etc...

No EML on i take it??

Dicko&Vacant

iTrader: (3)

its only done 85k miles so not high and no EML on?

not really noticed lack of power and yeah it seems fine once driving, i dont have the tools to do an injector leak test.

chris cdti

What you could do is unclip the leak off pipes and clamp off the pipe that goes back to the fuel system and see what one lets more or less fuel out then the others.

Now if the misfire is only there when the engine is cold this may be "low voltage in the common rail" There is a VX field remedy for this but there is nothing you can do as it says "explain to the customer the situation and that its normal" No parts to be replaced.
I personally have only come across the above on "6" chassis cars as the later ones have a new common rail.

On the Astra H there is a way of getting the fault codes to come up on the dash by holding down the brake and throttle and turning on the ignition to pos 2. Where the miles are displayed if there is no DTC's the dials will say ECN00000 but if there is it will be for instance ECN04005a (common code for the DTH and means EGR valve insufficient flow)
Im not sure the Vectra will work the same but its worth a go.