amyspud
Member
Registered: 6th Nov 05
Location: Hertfordshire
User status: Offline
|
What causes the Engine management light to come on which is related to the engine temperature. I've been unable to do the papaerclip test due to a bust diagnostic connector and have been going thro a process of elimination to suss out the fault.
The engine management light comes on when the engine gets hot and on b4 the electric fan kicks in, once the engine has cooled either through driving after fan been on and driving to cool engine OR switch engine off and let it cool - the engine mngt light goes off.
Definately related to the engine temperature. Fan works fine, the temp. guage works fine - basically the light goes out when the engine cools.
WHICH SENSOR sends engine temperature info. - is it the Coolant Temperature Sensor. Does the output from this sensor also effect the tickover as when the light comes on, the tickover is quite lumpy compared to when the engine is cold.
When the car is stared from cold the light is off, drives nicely and the tickover is smooth.
|
vaux-tech
Member
Registered: 28th May 06
Location: Preston, Lancs. Drives: Astra SRI turbo.
User status: Offline
|
engine?
|
PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
|
what engine??
|
amyspud
Member
Registered: 6th Nov 05
Location: Hertfordshire
User status: Offline
|
For the smart prats that spotted the 'engine' word - 10/10 your bright - ECU
|
PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
|
quote:
Originally posted by amyspud
For the smart prats that spotted the 'engine' word - 10/10 your bright - ECU
no what we want to know is what engine is it
ie
1.2 8v, 1.4 8v, 1.4 16v, and so-on...
the CTS is in a different position on the engines, plus it could be an array of things.
saying the EML just comes on when it gets hot doesnt help us unless we know what engine it actually is.
|
amyspud
Member
Registered: 6th Nov 05
Location: Hertfordshire
User status: Offline
|
Apologies !!!!!!!!!!!!!!
1 Litre 3 cylinder R reg 46K
|
vaux-tech
Member
Registered: 28th May 06
Location: Preston, Lancs. Drives: Astra SRI turbo.
User status: Offline
|
sounds like a knackered sensor to me, put a new one on, check for leaks around the radiator/fan switch, shud b ok after that hopefully.
|
amyspud
Member
Registered: 6th Nov 05
Location: Hertfordshire
User status: Offline
|
Vaux tech
Which sensor the thermostatic sensor in/on the rad to 'kick-in' the electric fan or the coolant temperature sensor?
The fan does work - unless you mean it's not starting early enough - which I don;t think is the case as the temp. guage is not that far across (mor than half way) b4 it does start. OR do yo mean the coolant temperature sensor ?
|
