record temp - Page 2

T-Cut · 4th January 2010, 15:58

The thick plottens!

TC

bl52krz · 4th January 2010, 21:07

Quote:

Originally Posted by sma

latest update checked this morning coolant level fine started ok but quick flash of engine management warning on message display then went back out so will book into garage tomorrow

electric does funny things when wet or cold. will be interested if any faults on t4 when tested.

pab · 4th January 2010, 21:12

did the ecu detect a missfire to ignite the mil?

the results would interest me too.

T-Cut · 4th January 2010, 23:36

Thoughts on possible effects of low temperature electric that could lead to erratic behaviour and bad starting.

Signal from temperature sensor transmitted in Fahrenheit when ECU expects Centigrade.
Sparks too cool to ignite fuel?
Current moving too slowly from cam sensor to ECU leading to timing errors?
Fuel pump turning too slowly to create enough pressure?
Electronic traffic backing up on the IBus lane?

If any of these prove out, we should expect to read of more fan and startup anomalies in the coming days. The weather is set to get even colder! Crikey!
TC

sma · 7th January 2010, 20:47

Car back today new thermostat fitted. Running fine temp rising every thing as normal felt for a while the stat had been iffy, car t4D nothing showing so thread ends on a bit of mystery 135 temp still unexplained spurious reading caused by cold

as ever goes without saying many thanks for insight given

T-Cut · 7th January 2010, 21:49

Good to hear it's all well.

Quote:

Originally Posted by sma

- - - so thread ends on a bit of mystery 135 temp still unexplained - - -

Certainly one for discussion in the Twilight Zone.

TC

7th January 2010, 20:47	#15
sma Avid contributor Rover 75 Saloon & Rover 75 Tourer Join Date: Dec 2007 Location: Glasgow Posts: 167 Thanks: 2 Thanked 13 Times in 3 Posts	Car back today new thermostat fitted. Running fine temp rising every thing as normal felt for a while the stat had been iffy, car t4D nothing showing so thread ends on a bit of mystery 135 temp still unexplained spurious reading caused by coldas ever goes without saying many thanks for insight given

4th January 2010, 15:58	#11
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,754 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	The thick plottens! TC

4th January 2010, 21:12	#13
pab Banned MG ZT V6 190+ Join Date: Sep 2008 Location: Leeds Posts: 33,223 Thanks: 41 Thanked 1,614 Times in 1,416 Posts	did the ecu detect a missfire to ignite the mil? the results would interest me too.

4th January 2010, 23:36	#14
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,754 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	Thoughts on possible effects of low temperature electric that could lead to erratic behaviour and bad starting. Signal from temperature sensor transmitted in Fahrenheit when ECU expects Centigrade. Sparks too cool to ignite fuel? Current moving too slowly from cam sensor to ECU leading to timing errors? Fuel pump turning too slowly to create enough pressure? Electronic traffic backing up on the IBus lane? If any of these prove out, we should expect to read of more fan and startup anomalies in the coming days. The weather is set to get even colder! Crikey! TC