I get no black smoke or at least none i can see in the rear view mirror

I do have a blanked off EGR with a solid plate. Coincidence? dunno!

 

I get no black smoke or at least none i can see in the rear view mirror

snap !!

 

Clean EGR. Check for splits in turbo hoses (bottom & top).
Check vacuum pipes as well.

Simples.

 

+1. What I would have said, main culprit lies in split turbo hoses most probably.

 

I did get a lot of smoke... until I had a remap and EGR blanked off.

A lot less smoke now.

 

Cheers guys. Its not a problem really, I don't get that much that I can see it in the mirror, it's literally just the (well what i would consider) normal amount. BUT i just wondered if there was maybe a trick or something that could be done to reduce it further (ideally so there none but i know thats not possible). Im really just being picky!

For example; following another diesel car (any make), you know when they put their foot down (or when they're in the wrong gear!) because of the smoke and i just wondered if there was a way to reduce this?

Maybe EGR removal might help? I've been needing to get this done for sometime tbh, i have the classic motor control error which is definitely EGR valve. I've cleaned it several times, and took it to Peak Alfa and they're convinced its the EGR valve causing the error. He's even reset ECU and its fine until you put foot down and then "boop" management light is back! Doesn't actually cause any problem when driving though (or at least i don't think it does i.e. no lack o power or anything). Anyway, story over!

Any tricks or is EGR removal and blanker plate the way forward?

t3yls - have you noticed any improvements since having your EGR valve removed?

AND finally (sorry for the lengthy multi-topic thread); I assume i'll need to get a remap if i do decide to get it removed?

 

Any tricks or is EGR removal and blanker plate the way forward?

t3yls - have you noticed any improvements since having your EGR valve removed?

AND finally (sorry for the lengthy multi-topic thread); I assume i'll need to get a remap if i do decide to get it removed?

I stripped and cleaned the EGR and it was better. Then I blanked it off completely with a £2 metal plate off ebay and realised what a fool I was for not doing that sooner!!

no you don't need a remap to get it to stop working -although a remap can stop it from working and get rid of the engine management light (which I get because I have no remap).

I suggest you do the cheap ebay option first -if that makes a difference, then decide to go down remap route or not. if you can live with the engine light, like i can ...problem solved for £2.

you can also get a metal plate with some small holes in which will stop the engine light coming on as well. Use search function and read up.

 

Dude, Roger at Peak Alfa knows his stuff. Give him some monies and he'll remove the EGR and remap the car.

 

If you drive and diesel and dont want smoke you need a car with a DPF fitted and all the problems that come with them.

 

Hmmm ...GT doesn't have a DPF and I have no smoke

 

Turbopeen
When did you last change the oil and fuel filters?
I've only had my 1.9JTD for a few months, but when my 4x4 starts smokin on turbo boost then it's time for filter changes

 

The new MOT rules state any engine warning light thats on is now am automatic fail .

 

nope! ...last MOT was in january this year. I checked with the tester beforehand to ensure he was in agreement that it is not a fail.

 

Thought new rules came in march april this year

 

there are additional checks -none of which is the engine light

these new checks, if a fail, go down as an advisory i believe (may become a fail at some point in the future)

 

ok I stand corrected .just a further thought for the original poster if your diesels tossing out black smoke u have a problem man that needs sorting out .My gt diesel puts out no smoke white or black

 

yeh fair point, no harm in raising it.

I get a plume of blue smoke on a cold start due to my swirl flaps being stuck open. I guess rather out than in!

 

dont forget to clean the map sensor too.........to the left of egr held in with one torx.pull it out and clean with carb cleaner and pop it back in

 

Will do

 

Isn't black smoke quite 'normal' on remapped jtd's? Mine is remapped and smokes a lot.

 

your definition of normal is different to mine! but then how much is 'a lot'?

 

If your diesel is running sweet remaped or not it should not smoke at all in my opinion .Mine doesnt

 

Like I said its not really smoke and perhaps calling it black smoke was misleading

Its what I would class as the normal amount of diesel soot that every diesel engine car in the world kicks out.

You don't think yours has "smoke"? get a friend to fully rev her for you while your stood behind.... you'll see what I mean ....but like i said its not technically smoke i dont think.

 

mine smokes like a gud un, both before and after a GUS remap

all new hoses, all new turbo control hoses, egr clean, map clean , AFM clean... still no better for smoke, but runs well

Gus told me my injectors could be at fault, not sealling properly

 

Mine's a Gus map. Smokes slightly, but nowhere near as bad as beforehand.

Then again, it has a new turbo, too, so that could play a big part.

 

Yeah Roger at Peak Alfa says EGR removal and remap will sort it. Apparently my EGR valve is on its last legs... hello MCSF light, ah we meet again and probably not for the last time

Nb, Gaz love your footer "Poverty Spec in Dog Nob Red" made me laugh for some time! :lol: :thumbs:

 

clean air filter also helps reduce smoke , just changed mine too a K&N FILTER much cleaner now !

 

You both say it runs great but EGR nackered injectors suspect you just made my point lol it smokes its got a problem

 

Haha fair point, I concede! But I did start this before the return of the MCSF light to which NOW i know its the EGR valve... but you're still right

There will be one day, for what i can only imagine to be a brief moment when I get in my GT and think 'wow, there's not a single problem, nothing at all, no errors, everything's working, windows go up properly, there's no airbag fault, the mcsf light has gone away, the egr valve is fixed, straight through MOT (as always though to be fair) there's no condensation in my rear light and even if these were all still problems, at least there not a mark on the bodywork so it still looks awesome' ..... and at this point of a seemingly modest revelation, i'll get shunted by a chav in a 1.0 purple corsa with an untreated, grey plastic **** body kit that he tried to fit himself!

Got to love it though

 

My MCSF light stayed on for a week after cleaning my MAP sensor with carb cleaner. Unless the car feels sluggish, your EGR might not be the problem. That said, they are a lump of crap :/

Nick

 

Mine also has the same diesel smoke under acceleration. All obvious things have been ruled out or replaced so I'm guessing its going to be an injector(s) that's causing it if there is supposed to be absolutely zero diesel smoke.

I don't get though how there will be zero diesel smoke without dpf, I thought it was a natural characteristic of a Diesel engine hence the introduction of dpf?

 

I agree. As far as i know factory air/fuel ratios are well below the 'black smoke limit', beyond that ratio the 'extra' diesel does not combust fully and hense black smoke. But power does increase, albeit with with increased fuel consumption and black smoke due to the less efficient fuel burning.

That's why i was wondering if it isn't 'normal' for a remapped diesel to smoke more than normal. I would asume they run much closer to this limit, or possibly even beyond