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Hello again. I have an issue with the high speed radiator fan when the engine is cold at first start up. The fan comes on within 30 seconds at start up and runs until car is shut off. My ac is not blowing cold either.Is this normal for the high speed fan to run with a cold engine? Thanks you.
 

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when the ecu seeing a some fault and stores a live code it will by default switch on radiator fan, will even even do it when no eml on and only when scan it throws a fan, need to know what is stored and start the process
 

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hi mike
I understand that mate, I just cant get any info as to how why and how to fix...
The ecu as gone into emergency mode and thinks something is wrong....
no lights no messages nothing ,Runs like gazelle being chased by a lion.
The car as had a following.
1x new fan correct to match for vehicle from a pretty decent parts specialist
1x thermostat housing Genuine with sensors
air con pressure sensor
flushed and re gassed not that it needed it.
coolant system filled and bled correctly
Ive had 4 x diagnostics on it and nothing....
I even managed to get my hands on a fuse board for my car with matching numbers and still the same problem.?
re fitted original and still the same.
Ive disconnected the air con compressor and put 12 volts through it and compressor clutch works
somebody some where must have had this problem?
Thank you

sorry for the rant ,its been two weeks and a lot of money sunk in it.
im getting to the petrol can part:mad:
 

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what i do to find these faults is use autocom cdp plus diagnostics tool this allows me to switch the cooling fan on and off via the software so can run the circuit when i want to run it so can probe for voltages,, you can also just pull the temp sensor plug off the fan should fire up when you do this with ignition on, link below for software
dont be put off by the asian site its like ebay that software for money is well worth it covers all cars on road to 2018 ish
 
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