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Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - jonny10buds

At under 2500 revs my X-Trail lacks power and blows out black smoke, above 2500 revs when the turbo kicks in it drives normally. When reving the engine whilst stationary the turbo seems to be spinning all the time, even from low revs, but while moving it doesn't seem to get any turbo boost until 2500 revs. I have to change down into a low gear before the car will gather speed, a friend in the motor trade drove the car today and said I'm expecting too much from it, small engine, big car etc but in a modern vehicle surely I shouldn't have to drive around it's shortcomings?

Has anyone experienced a similar problem or am I expecting too much from the car?

Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - Peter.N.

I don't know the car but you certainly shouldn't get black smoke from a modern diesel. Black smoke is a sign of to much fuel or not enough air so I would check the air filter first and also the MAF sensor to seeif it isn't giving false information to the ECU.

The turbo will spin practically all the time it takes very little gas flow to make it do that but it needs a lot to make it spin fast enough to give any boost.

Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - mickeybo

First port of call remove egr valve for cleaning very common fault on these renault engines 2.2 diesel check it out Hth Regards mickeybo

Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - xtrailman

As max torque is at 2000 rpm, i cant see how the turbo is kicking in at 2.5?

On cars before 2004, smoking exhausts was commonly due to injector problems.

I would get it in for a health check, to a tuning specialist.

In normal driving you rarely need to run over 2k revs, going through the gears.

Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - mjparmy

I have the excact problem that you describe and the garage don't seem to be able to fix it. Can you tell me, did you find a solution and if so, what was it? I have had my X-Trail from new and I know for sure how well it should perform and that there is a problem, you are not expecting too much.

Nissan X-Trail 2.2 Di Sport - Black smoke and lack of power at low revs - carr

As already stated the first thing to look at is the EGR valve. I had exactly the same problem and fixed it cleaning the EGR valve as explained on this website

http://www.x-trail-uk.co.uk/viewtopic.php?f=50&t=4816&start=0

The job takes about 30 minutes, needs a short screwdriver to unscrew the screws to take the top off the valve housing and some solvent, like engine cleaner, and WD40 to get the valve sliding again. Website says to replace the gasket seal but I just reused the old one.

Edited by carr on 16/09/2012 at 21:54

 

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