Am I right in saying that it is a well know problem that the Engine coolant Temperature sensor goes faulty & sends the wrong reading to the ECU ?
Is there an error code stored in the ECU (as I want to prove to the warranty company thats what it is) if not what other way can you confirm that this where the fault lies ?
The symptoms are intermitant but are :
i) The Glow plugs lights stay on for 45-60 seconds (indicating to me that the ECU thinks the engine is VERY cold), then when you start the engine if Revs hard straight away then settles to a tick over of 1100-1200 RPM (should be 900RPM) which indicates to me that it could be Over fueling due to the ECU thinks the temperature is very low.
ii) Then on other occasions when car has been left out all night & is extremely cold the Glow plugs hardly come on at all & then when I start it "just about" stays running or when I move away will loose power until I let foot off the gases to allow it to settle & then its OK……this COULD be accompanied by a lot of white smoke.
I've got round this problem by continually turning ignition key off & on so that I get a short burst of Glow plug each time then after I've done this a number of times (ie I feel that the cylinders have been heated up) I then turn the key to start & its OK.
Paul
Is there an error code stored in the ECU (as I want to prove to the warranty company thats what it is) if not what other way can you confirm that this where the fault lies ?
The symptoms are intermitant but are :
i) The Glow plugs lights stay on for 45-60 seconds (indicating to me that the ECU thinks the engine is VERY cold), then when you start the engine if Revs hard straight away then settles to a tick over of 1100-1200 RPM (should be 900RPM) which indicates to me that it could be Over fueling due to the ECU thinks the temperature is very low.
ii) Then on other occasions when car has been left out all night & is extremely cold the Glow plugs hardly come on at all & then when I start it "just about" stays running or when I move away will loose power until I let foot off the gases to allow it to settle & then its OK……this COULD be accompanied by a lot of white smoke.
I've got round this problem by continually turning ignition key off & on so that I get a short burst of Glow plug each time then after I've done this a number of times (ie I feel that the cylinders have been heated up) I then turn the key to start & its OK.
Paul