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About mjt

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    Too much time on the boards

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    Mk3 Tit Estate 1.0 SCTi Ecoboost 125ps
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    0 to 5000

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  1. I didn't think there was a separate fan for recirculation. I thought this was just done by moving flaps in the heater. I note in your first post you said 'if the aircon is on LO'. Do you mean that it only does it at that setting?
  2. Sorry if I caused the confusion. I haven't had the undertray off a recent model. The last one I looked at was on our old Mk1.5 Ghia and I'm sure that had a thin layer of foam, as did the one on our old Rover 75. I made the assumption they still had it on the more recent cars so my apologies if that's wrong. Anyway I think even without foam an undertray will still help to contain the engine bay noise and make the car quieter for bystanders.
  3. Are you saying that engaging reverse causes the fan to speed up? If you take it out of reverse does the fan then slow down again? If so it sounds as if the signal from the reverse light switch is having some strange effect in the BCU. Maybe it would be worth disconnecting the battery for half an hour to reset the ECUs.
  4. That's the one I'm referring to. Note I said engine noise reflected off the road.
  5. They also have the function of reducing the amount of engine noise reflected off the road. That's why they are lined with foam.
  6. Yeah, they've started charging for this service so I've deleted all my albums and cancelled my account with them. Anyway, don't need them on this forum since it accepts image files.
  7. That sounds to me more like a Heated Oxygen Sensor (H-O2-S), i.e. Lambda sensor in the exhaust. That's just a guess though.
  8. I think the relays may be on the underside. The bad news is they aren't plug-in types, they're soldered onto the fuseboard. On the Mk1/1.5 Focus they were plug-in and as they were identical they could be tested by swapping them. On the later models Ford, in their infinite wisdom - NOT - have them soldered in so not only can you not test by swapping but to replace one faulty one effectively means buying a new fuseboard although personally, as a retired electronics engineer, I'd have a damn good go at replacing one if I could get the correct part. Incidentally the wiring diagram and relay identification in the Haynes manual for our Mk2.5 appear to conflict (no surprise there).
  9. I trust you really mean that it will help someone with this issue one day . . . . .
  10. As you can see, Wilco is registered as 'Other/NonUK' so that must be an option.
  11. There is a school of thought that doing this compensates for the reduction in suphur in modern diesel. I don't think anyone has done any definitive studies on it though. If you want to try it you should use a good low-ash two-stroke oil at a ratio of about 1 part in 200.
  12. Stop being such a wussy and learn how to do hill starts with the handbrake like proper drivers do.
  13. Actually it's the current that needs to be controlled. LED's are diodes and their curve of forward voltage vs current is almost constant for a wide current range. This is most simply done by adding a resistor in series, then the current can be varied either by varying the value of the resistor, as I think you mentioned earlier, or by keeping the resistor constant and varying the voltage. Is this what you meant?