Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Oh_mega_man]

Hi folks. I hope that some of you technical Geniuses can help me put some life back into my old miggy.
I am proud but disheartened owner of a silver 2001 2.2 DTi Executive.
About 2 weeks ago on my way to work i overtook a couple of vehicles in 3rd gear at about 75mph and 30 secs down the road the orange management light lit and the car immediately lost power and pulled itself to almost a halt. It filled the road with billows of smoke and from there onwards would only rev to approx 1200 rpm. It has remained that way since. I cannot get a straight answer from the local dealer as to its cause but am told it is vacuum related. If any of you have came across this problem or can point me in the proper direction to look i would be most greatful indeed.
I was told to check every one of the vacuum pipes for cracks or damage but when spraying an aerosol injector cleaner around the engine bay no sign of air leaks are showing up by a pickup in idle or anything thus leading me to think there are no air/vacuum leaks.
I leave it for the moment in your capable minds. Thank you for taking the time to read this and i hope i can return the favour some day.

[tunnie]

humm i have no experiance with the 2.2 DTi, sounds like it could be a throttle body issue?

When i started my 2.2 petrol once, the idle was very lumpy and hovered around 1,200 RPM

Press the pedal, nothing happend. Put this down to a glitch, its never happened since. The 2.2 petrol is coil per plug, not sure how the DTi works.... however it could be a glow plug issue??

Sorry can't be much help, a diesel expert will be along soon.

However i think you must drive a 2.2 DTi Elite? No such thing as an Omega Executive  

[JamesV6CDX]

Tunnie - I also know little about the diesels, but it won't have a throttle body setup in the same way as on petrol models. I'm only used to working on older diesels, (Eg pug 406 1.9).. the throttle cable on those doesn't open an air flap, it opens up the diesel pump to let more diesel in. Although, I'm not sure how it works on later diesels, as I guess it would be on the DBW principle?

It also won't be a glow plug issue, because the glow plugs do beggar all once the thing is started - they simply provide heat in the chamber to aid cold starting.

Diesels work on compression only, so don't require a spark, or in fact any input, from a plug in the chamber.

Can you give an indicator of the colour of the smoke?

I guess it could be turbo related. Maybe turbo seals. Has your engine oil level dropped?

[ians]

I also know little about diesels (never had one), but haven't there been some posts recently about fuel pump failure?

If the eml is on, sounds like the codes need reading.    That will need at least a cheapo Tech2 as I don't think the paperclip works on facelift.

[stevief]

Only once had symtoms anywhere close to yours and it was due to the hose at the bottom of the turbo, the outlet, comming loose due to not being put back correctly following the dealers changing the fuel filter. In the case mentioned the hose was just sitting against the turbo hosing and whenever boost built up it was pushing the hose back  just enough to release the pressure but looked as though it was still connected.

I guess the same would apply to the other end as the hose routing holds it pretty much in place against the inlet manifold so may be worth checking all the hoses on the inlet system.

The only other thing I can think off just now would be the wastegate being stuck open and not allowing enough air through the inlet to allow correct combustion and therefore the lack of revs.

As IanS states the diesel requires Tech 2 for emissions codes as the OBD2 scanner I have does not read the emmision system at all.

Sorry I can't be more helpfull.

Steve

[Marks DTM Calib]

I was told to check every one of the vacuum pipes for cracks or damage but when spraying an aerosol injector cleaner around the engine bay no sign of air leaks are showing up by a pickup in idle or anything thus leading me to think there are no air/vacuum leaks.

That will show nothing on a diesel engine anyway as the vac is generated by a pump and not inlet vaccum (thre is no throttle on a diesel so vac is minimal hence they have an external pump) so is there is a leak it only goes into the vac pump and not the engine!.

First thoughts are.....a vac leak as sudgested. I use a vac gauge for this job and close inspection of the vac pipes is the only way. Remember to check the brake servo pipe etc to.

For the lack of revs, my first thought is a main pipe off the turbo or similar, this would result in a low air reading and consequently little fuel being injected so check the main air inlet trunking including the turbo, air filter and intercooler connections.

[omegaman2]

nothing to do with glow pluga  they are only for cold starts ...at 75mph you must have been on the line i wonder if engine management has shut you down to safe mode to avoid blowing engie/turbo :question

[Marks DTM Calib]

I think a turbo pipe has blown off......or split.

[davlad22]

Somebody had a completely failed turbo recently. But, tis no good clutching at straws. Hope you get it sorted  

[Marks DTM Calib]

A failed turbo wont result in a rev limit.....it will still rev but be sluggish as buggery.

[davlad22]

That's normal behavior for a diesel   How would you tell!?!