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08-01-2006, 10:11 PM
#1
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FAO Stu and experts
Hi,
I had strange problem yestarday and everything back to normal later so I post a question.
Yeserday mornig I was driving for some practise driving in snow. Going out early from garage -8 degrees outside. Warmed up... and the car is barly quicker then WRX Impreza. Checked the boost gauge - only 1 bar. The situations tayed like that for whole trip and during whole day on the track (well I don't really know too much ice to get proper stable boost). Throughout the day it was below -6 degrees. Then when driving out of the track I floored it and everything backt o normal - just below 1.4 bar. Stayed like that for 200km's. Put the car back to garage. What could be that??? Checked all the lines under the boonet, they look normal.
My first idea was that maybe the car is mapped in such a way that it's down on bosot in very low temperatures (e.g. low ACT's) but it isn't as it boosted as normal in the evening even at high speeds. Schould I check something?
In the garage it stays in positive temperatures overnight.
I had strange problem yestarday and everything back to normal later so I post a question.
Yeserday mornig I was driving for some practise driving in snow. Going out early from garage -8 degrees outside. Warmed up... and the car is barly quicker then WRX Impreza. Checked the boost gauge - only 1 bar. The situations tayed like that for whole trip and during whole day on the track (well I don't really know too much ice to get proper stable boost). Throughout the day it was below -6 degrees. Then when driving out of the track I floored it and everything backt o normal - just below 1.4 bar. Stayed like that for 200km's. Put the car back to garage. What could be that??? Checked all the lines under the boonet, they look normal.
My first idea was that maybe the car is mapped in such a way that it's down on bosot in very low temperatures (e.g. low ACT's) but it isn't as it boosted as normal in the evening even at high speeds. Schould I check something?
In the garage it stays in positive temperatures overnight.
10-01-2006, 04:54 PM
#3
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Well actuator wasn't anywhere cold after 2h drive to the track 
Maybe just frosen boost solenoid.... :-/ Dunno. Maybe Stu will notice he knows his software
Maybe just frosen boost solenoid.... :-/ Dunno. Maybe Stu will notice he knows his software
10-01-2006, 05:06 PM
#4
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IIRC standard eec-iv boost is mapped to give max boost around 40 degrees C inlet air temperature and this drops off either side. Obviously only Stu can say what he's mapped yours to.
10-01-2006, 05:14 PM
#5
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Originally Posted by sailorbob
IIRC standard eec-iv boost is mapped to give max boost around 40 degrees C inlet air temperature and this drops off either side. Obviously only Stu can say what he's mapped yours to.
Well it was still -8 in the evening and today it's about -10 and boost is just OK as usuall. So this was only temporary failure of some kind I think, which suggests it's rather mechanical then software problem as I originally thought.
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12-01-2006, 12:18 PM
#9
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Originally Posted by Stu @ M Developments
What grade do you use?
Motul 300V Competition 15W50
You can feel flowery, perfume like smell of it all the time while driving, especially when stationary with warm engine.
12-01-2006, 08:51 PM
#11
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Originally Posted by Stu @ M Developments
Have to start suspecting turbo and or crankshaft front and rear seals as a rule pal.
It won't boost once more :-( 1 bar, no peak. Check boost solenoid connections - everything fine, I think it just failed :-(
12-01-2006, 09:21 PM
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Originally Posted by Stu @ M Developments
Unplug it, see if you get any effect, if not, your on the right lines.
12-01-2006, 09:31 PM
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Originally Posted by Stu @ M Developments
Id personally buy new mate, but its not that common in all fairness.
OK, I'll check with Ford avalibility and price. Couldn't get the plug off though. Will have to try when engine is cool.
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