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PaulieT31TDi
X-TRAIL NEWBIE
Date Registered: 08-2008
Location: Brisbane
TOTAL POSTS: 54
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Diesel - Engine fault light and a fault code that does not exist??
Have a problem with the engine fault light coming on and recording a fault that the dealer claims is not a fault for my model.
When it originally came on there were no problems running the car and I had it to the dealer the next morning. They checked it out, said the fault code generated was not relevant to my model car. They reset the fault register and said see what happens in the future (no I didn't get the code off the service guy....dumb).
The fault has come on again, but this time with symptoms. When driving the other day (with the light on) I adjusted the temp on the auto air con and the car momentarily stalled but then continued on, then today while driving low throttle opening in a small suburban street at about 30 - 40km/h it did the cut out thing a couple of times again.
Anyhow I have the car booked in for first thing Thursday morning. Hope they can actually put some effort into it this time. I am going away up to Double Island thursday week with the family and some friends from OS so am not keen to experience problems when on a holiday.
Possibly throttle position sensor , crank angle sensor or some such rubbish. I havent had the particulate filter burn sequence occur since the car had about 800km on the clock (now has 8500km) so maybe it is that?
I am already over it, I stopped playing with modified cars for a reason, and my last two new cars didn't give me a seconds greif, now this from a near new car. I am moving from calm and reasonable to very pissed very quickly.
Anyone got any ideas that I could put to the service guys?
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2008 TL 6 Speed Manual, Precision Grey. Tint, Rubber Mats, Towbar, Roofracks, 2 x Thule Bike Carriers
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3/Feb/2009, 10:00 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Diesel - Engine fault light and a fault code that does not exist??
Paul,
Maybe if they can give you a good we can have a better idea rather than guessing something that may be completely irrelevant to your car.
Get them to give you the code they're getting even though they claim it's not for your model, which is highly unlikely and very weird for them to say that anyway.
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4/Feb/2009, 10:28 am
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Diesel - Engine fault light and a fault code that does not exist??
I don't mean to sound pessimistic about this, but hearing about a blocked EGR valve that remains in a closed position forces me to remember the turbo failures of the previous diesel xtrail model (2.2LT diesel) which had exactly the same fault.
I bet Nissan are in panic mode at the moment if it is the case, as one of the major selling points of the new diesel engine was the promise that they have addressed the EGR blockage which led to blown turbos of the previous T30 diesel models.
Here is an extract describing the effects of a faulty EGR valve and its impact on your diesel:
quote:
The EGR valve should open to allow carbon dioxide (which acts as a cooling gas) into the combustion chambers when the engine is under load (>30% boost). This allows the combustion chamber temperature to drop and thus the temperature of the exhaust gases. If it sticks in the closed position the exhaust gas temperature will rise causing a) the turbo bearings to fail and b) engine oil into the induction system. This can cause the engine to run on its crankcase oil until it is either stalled or goes bang. Problems with EGR valves are often the cause of rough running when the valve is stuck in the open position as well. In several cases turbos have blown but the EGR valve has not been replaced. Inevitably the new turbo unit will not last long.
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8/Feb/2009, 6:07 am
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