Discussion
After a hard drive, the car stalls, as if it is starved of fuel. I suspect the heat vapourises the fuel in the line and air locks get into the line. Anyone else suffer this?
Also, smoke is now blowing from the left hand exhaust pipe, (nearside)when I accelerate from low speed or when I blip the throttle . I know both banks terminate into the same silencer box, but it does not look right. Any ideas?
Also, smoke is now blowing from the left hand exhaust pipe, (nearside)when I accelerate from low speed or when I blip the throttle . I know both banks terminate into the same silencer box, but it does not look right. Any ideas?
Ash M400 said:
After a hard drive, the car stalls, as if it is starved of fuel. I suspect the heat vapourises the fuel in the line and air locks get into the line. Anyone else suffer this?
Also, smoke is now blowing from the left hand exhaust pipe, (nearside)when I accelerate from low speed or when I blip the throttle . I know both banks terminate into the same silencer box, but it does not look right. Any ideas?
Ash, that's really strange because I got this at the weekend too. In fact my car always idle's lower when the outside temp is higher. It stalled frequently at the weekend just sitting in traffic. And as you have said I was getting white smoke out of the exhaust too.
My fans are definately coming on.
Ash M400 said:
After a hard drive, the car stalls, as if it is starved of fuel. I suspect the heat vapourises the fuel in the line and air locks get into the line. Anyone else suffer this?
Does it stall when you are at idle, like when you pull up at traffic lights or something ?
Also, smoke is now blowing from the left hand exhaust pipe, (nearside)when I accelerate from low speed or when I blip the throttle . I know both banks terminate into the same silencer box, but it does not look right. Any ideas?[/quote]
It it def. coming from the inside of the pipe? could it be something dripping onto it, making it look like smoke blowing out ?
The smoke is from the exhaust pipe, nothing near to drip onto it.
I suspect that although the pipes connect to the same silencer, the pipes inside still follow through to the rear.
The stalling is even when slowing down, lower gears, say 2nd, to 1st. Clutch in, go to change down, engine stalls, while moving!
I suspect that although the pipes connect to the same silencer, the pipes inside still follow through to the rear.
The stalling is even when slowing down, lower gears, say 2nd, to 1st. Clutch in, go to change down, engine stalls, while moving!
Ash - not sure about the stalling - could be a dodgy lamda sensor on the way out???
As for the smoke, I had the opposite yesterday. Pulled up, filled up the car with petrol, and then when reversing it into a space noticed whisps of black smoke from the rear right.
I got a friend to check the car all the way up for the next 100+ miles and it was fine (despite us "pressing on" on the French roads). I'm presuming it was the sheer heat thin-ing the oil and allowing it to get through the turbos when it was standing around. My Ur Quattro is very similar.
J
As for the smoke, I had the opposite yesterday. Pulled up, filled up the car with petrol, and then when reversing it into a space noticed whisps of black smoke from the rear right.
I got a friend to check the car all the way up for the next 100+ miles and it was fine (despite us "pressing on" on the French roads). I'm presuming it was the sheer heat thin-ing the oil and allowing it to get through the turbos when it was standing around. My Ur Quattro is very similar.
J
J
That does make sense. It was white exhaust, I think that is burning oil residue?.
The stalling I think is another problem, which may be something to do with not being able to get top speed out of her.
More on that later, I await the factory to get back to me.
Anyway, I still love her, it's like a marriage, sometimes you have to work hard and accept each others faults. My wife accepts all of mine, She does not have any
. (she reads this board every now and then).
>> Edited by Ash M400 on Monday 20th June 15:10
>> Edited by Ash M400 on Monday 20th June 15:56
That does make sense. It was white exhaust, I think that is burning oil residue?.
The stalling I think is another problem, which may be something to do with not being able to get top speed out of her.
More on that later, I await the factory to get back to me.
Anyway, I still love her, it's like a marriage, sometimes you have to work hard and accept each others faults. My wife accepts all of mine, She does not have any
. (she reads this board every now and then). >> Edited by Ash M400 on Monday 20th June 15:10
>> Edited by Ash M400 on Monday 20th June 15:56
I've given up worrying about smoke coming from the exhaust. I became really concerned about the great clouds of black smoke that lasted for several minutes on start up - it turned out to be a questionable cold start fuel map - easily fixed on the last service. The problem reappeared for a few weeks not so long ago, but has since vanished again!
As for the air-con stalling the car - I've not had this problem, though at one point when I was experiencing problems having the air-con engage was very akin to giving the brake pedal a good prod! The only gripe I have now is that when the compressor is running there is a very high pitched whine from it.
As for the strange grinding noise I had a couple of times over the weekend when changing gear - I can only put this down to the hot weather! Clocked up 20k miles this weekend - and use the car every day - I am sure it is getting better with age!
Even the tyres are lasting longer - I scraped 9k on the first set - and the current ones are still more than hanging in there! Hmmm maybe I driving slower in my old age!
As for the air-con stalling the car - I've not had this problem, though at one point when I was experiencing problems having the air-con engage was very akin to giving the brake pedal a good prod! The only gripe I have now is that when the compressor is running there is a very high pitched whine from it.
As for the strange grinding noise I had a couple of times over the weekend when changing gear - I can only put this down to the hot weather! Clocked up 20k miles this weekend - and use the car every day - I am sure it is getting better with age!
Even the tyres are lasting longer - I scraped 9k on the first set - and the current ones are still more than hanging in there! Hmmm maybe I driving slower in my old age!
the stalling is down to the total lack of idle compensation caused by a lack of i/o in the MBE ecu, in other words noble did it on the cheap, they could have sorted this for about a tenner on the price tag.
As soon as the warranty runs out mine is going in the bin,i'll be fitting an ecu that matches the rest of the car with a map that can cope with a bit of traffic and a hot day.
Adrian
As soon as the warranty runs out mine is going in the bin,i'll be fitting an ecu that matches the rest of the car with a map that can cope with a bit of traffic and a hot day.
Adrian
adrian w said:
the stalling is down to the total lack of idle compensation caused by a lack of i/o in the MBE ecu, in other words noble did it on the cheap, they could have sorted this for about a tenner on the price tag.
As soon as the warranty runs out mine is going in the bin,i'll be fitting an ecu that matches the rest of the car with a map that can cope with a bit of traffic and a hot day.
Adrian
Wouldn't you need an IACV to compensate?
Binning the MBE seems a bit drastic as the maps are on the whole good.
Add another one to the list! My M400 kept stalling on me in heavy traffic coming into London today. Outside temp must have been close to 30 degrees and the oil temp in the car was at 90-100 degrees all the time. Sounds like the same problem... crawl up to lights in 1st or 2nd, depress the clutch and move right foot to brake, engine stops! Ver annoying and something to take up with the factory me thinks!
Dom.
Dom.
adrian w said:MBEs are in the £1k mark - I wouldn't call that cheap - but then perhaps you're talking about something even more expensive????
the stalling is down to the total lack of idle compensation caused by a lack of i/o in the MBE ecu, in other words noble did it on the cheap, they could have sorted this for about a tenner on the price tag.
As soon as the warranty runs out mine is going in the bin,i'll be fitting an ecu that matches the rest of the car with a map that can cope with a bit of traffic and a hot day.
Adrian
However, Owen's had a different one fitted though, so you can do it.
J
On the old MM system, stalling when depressing the clutch when approaching junctions etc was a sure symptom of ECU failure. As the MBE is so totally different I don't think it can fail in the same way though.
As Joust said, I've got an Omex ECU in mine. It's run very nicely since it was put in too! Got through a searing almost 40 deg heat traffic jam while lost on the peripherique on sunday so it's
from me !!
Owen.
As Joust said, I've got an Omex ECU in mine. It's run very nicely since it was put in too! Got through a searing almost 40 deg heat traffic jam while lost on the peripherique on sunday so it's
from me !! Owen.
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