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8th December 2018, 09:37 | #41 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Sorry to be persistent about this but I think it's important to be absolutely clear. Simon
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8th December 2018, 18:37 | #42 |
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Plugged in the spare ECU today and the gauges moved, so not a wiring problem.
Put my main ECU back in, gauges dead again. Parked the car in a warm place for 1 hour and the gauges started to work. VIDEO VIDEO - HRW works fine when the gauges work. When I took the car outside again, the gauges started to work intermittent and after 10-15 minutes they went dead. VIDEO - Intermittent work. VIDEO - HRW no longer works. |
8th December 2018, 19:19 | #43 |
This is my second home
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Seems like you have a sensor that fails when it gets cold.
( Bit like me really. Lol. )--- |
8th December 2018, 20:21 | #44 | |
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Quote:
Brian |
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9th December 2018, 07:44 | #45 |
I really should get out more.......
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That is the bimetallic temperature switch which is hardwired into the FBH circuit, its only purpose is to switch on the FBH when the engine is running and the switch is closed at approx 5C air temp.
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9th December 2018, 08:57 | #46 | |
This is my second home
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Quote:
That is correct as far as it goes, but don't some of the later diesels have an extra air temperature sensor in the turbo air duct?
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Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money. |
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9th December 2018, 09:10 | #47 |
I really should get out more.......
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9th December 2018, 09:14 | #48 | |||
Give to Learn
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Quote:
Originally Posted by marinabrian and the additional ambient temperature sensor as used only on diesel models, mounted on the PAS cooler pipework. Quote:
All interesting stuff and great reading for the other members & owners so they know which sensors are being talked about couple of photo's below. ambient temperature sensor. 1 Place it should reside on the front bumper. 2 The bimetallic temperature switch, connected to the (FBH) fuel burning heater. 3 Close up of the sensor bolted to the PAS pipes by an 8mm bolt 4
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Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " Last edited by Arctic; 9th December 2018 at 14:12.. Reason: photo edit |
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9th December 2018, 09:17 | #49 |
I really should get out more.......
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And to answer the question why the HRW stops working when the can-bus controller dies.
No RPM signal = engine not running = HRW cant be switched on. |
9th December 2018, 09:39 | #50 | |
I really should get out more.......
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Quote:
So yes the BCU does receive it, however the ATC is NOT on the K-bus network it has its own datalink directly to/from the BCU. |
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