In my haynes manual it gives details of how to test the air temperature sensor. I've done the tests today and my air temperature sensor is faulty - The valve is stuck in the open position meaning that the flap from the exhaust manifold in the air horn is always fully open.
The book goes on to say that if the air temperature sensor is found to be defective then it should be replaced with a new one.
Any ideas as to where I can get one? I think the company that made them was called KNECHT and the part number is TB895/4. Got one from the scrappy but it's knackered too - valve stuck in the closed position.
Cheers.
New Air Temperature Sensor
to be honest the temp thing is a nice idea, but it doesnt work properly as you still suck in cold air in winter when you put your foot down so that can cause carb icing.
so on my mk2 I've blocked up the vacuum pipe (just before the air flap) as this disables the flap.
In summer (I havnt changed it yet) I just leave it like that so it draws in "cold" air.
In winter I've removed the snout on the end and then supplied the warm air feed to there, so its permanently warm.
![Image](http://www.optima21.pwp.blueyonder.co.uk/images/warm_trunking.jpg)
so on my mk2 I've blocked up the vacuum pipe (just before the air flap) as this disables the flap.
In summer (I havnt changed it yet) I just leave it like that so it draws in "cold" air.
In winter I've removed the snout on the end and then supplied the warm air feed to there, so its permanently warm.
![Image](http://www.optima21.pwp.blueyonder.co.uk/images/warm_trunking.jpg)
Interesting......
So your setup is a bit like the old escort my Dad used to have where he'd have to adjust the air horn in Winter so it drew in warm air to de-ice the carb and in Summer he'd move it away so it drew in cold air only? ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
RE: Your signature.....
Am just looking at your signature and are they two different cars you have or the same car before and after? If it's the later then very impressive.
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it does appear to be a decidedly borderline aqua in your sig....
peoples eyes do seem to react ever so slightly differently to subtle shades and all (personally i have one "red biased" and one "blue biased" eye - bizzare), and its a matter of how you got conditioned to green/blue crossover growing up
peoples eyes do seem to react ever so slightly differently to subtle shades and all (personally i have one "red biased" and one "blue biased" eye - bizzare), and its a matter of how you got conditioned to green/blue crossover growing up