high emissions

[neanderthal]

thanks thassos i will clean the obd2 pins and check again thanks wgl2020 i managed to get the egr pipe off but found it too difficult to try and get the egr valve off.(i will have to give it a go if thats the first thing i need to check after trying the code reading again)i have had a full service done to the car recently.can anyone confirm for me by the pics,whether i have a dpf or not thanks...i have put wynns fuel injector cleaner in the tank 2 days ago.looking at the dipstick should i remove some oil....i rang volvo and they said they would need the car for a minimum of 2 hours and if i have a dpf at fault then we are talking 4 figuresto sum up could it be dpf needs removing and cleaning(too many short runs)egr valve(sooted up)maf sensor or map sensor faulty,faulty injectors,(leaking)too much oil in engine.now where shall i start lol...i just dont know how to use this snap on to its full potential.its just too good to scrap and after the money thats gone into it with a full service and discs and pads all round.car will be off the road soon with no m.o.t....can someone tell me how to remove the big plastic cover on top of the engine that the big pipe is attached to as i want to give it a good clean out as i could not get all the gunk out(see this video at 17 seconds in where he is pointing to it)....https://www.youtube.com/watch?v=G0cX...fIrHeqoL7rIV1x

[eagle58]

Originally Posted by Wgl2020

That's just repeating what has been tried already (and hasn't worked)

You say that but if the car isn't driven far enough at sufficient speed so it gets to work then it won't work. Plus perhaps a different cleaner will help.

A lot cheaper alternative than buggering about with the DPF.

[neanderthal]

removed some oil from the sump...trying to get the egr valve off but cant get this bolt off can someone tell me the size of the allan key.

[neanderthal]

worked out its a size 5 allan key from working blind(you cant see it from above) the trick is to slightly angle the key downwards to get it on took me hourswill be replacing it so i can put a ring spanner on pics coming soon...here is a guide...https://www.youtube.com/watch?v=7yd9ZuQqXf8

[neanderthal]

cleaned the egr valve out and the other thingy that joins it.the egr valve was slightly open.the other part wasn't too bad to clean.found a bolt(to fit an 8mm spanner) which replaces the hidden bolt from underneath the egr valve which needed a no 5 allan key i used thinners,petrol and wd 40....now getting blue/white smoke instead of the black smoke....is it a drying/burning process taking place

[Familyman 90]

Its a diesel, so its a simple smoke opacity trst The EGR makes little or no contribution that that, being there as it is to lower nitrous oxide emissions which aren't tested.

You may have an EGR problem, but its unlikely to be the root cause of your MOT failure.

[x DTR x]

If you go down that route in blanking the egr, make sure to unplug the grey plug as it will throw your eml light. My 2.0l D 199960k has had its egr blanked for 8yrs and flys through the emissions every year!

[Wgl2020]

Originally Posted by neanderthal

cleaned the egr valve out and the other thingy that joins it.the egr valve was slightly open.the other part wasn't too bad to clean.found a bolt(to fit an 8mm spanner) which replaces the hidden bolt from underneath the egr valve which needed a no 5 allan key i used thinners,petrol and wd 40....now getting blue/white smoke instead of the black smoke....is it a drying/burning process taking place

Blue/ white smoke usually means oil is being burnt which isn't great.

Personally I would give the car a good run and see if it clears (in case it is some residue from cleaning the egr), if it doesn't then more diagnosis needed. There are quite a few possibilities including turbo, valves, piston rings to name just some.......

[neanderthal]

Originally Posted by Wgl2020

Blue/ white smoke usually means oil is being burnt which isn't great.

Personally I would give the car a good run and see if it clears (in case it is some residue from cleaning the egr), if it doesn't then more diagnosis needed. There are quite a few possibilities including turbo, valves, piston rings to name just some.......

guess whati took it for a good run and now its still emitting lots of blue smoke.and definately a burning smell..when i got back home i noticed a small amount of blue smoke coming from the turbo

[cheshired5]

Originally Posted by Familyman 90

Its a diesel, so its a simple smoke opacity trst The EGR makes little or no contribution that

Of course it can make a difference.
EGR position affects MAF which in turn affects fuelling and fuelling affects smoke output.