Re: Engine warning light (EOBD) (temperature sender / thermostat)
I have managed to deduce the following that may be useful to others:
The fan comes on when there is no signal coming from the temperature sender unit - obviously to protect the engine. This can be demonstrated by unplugging the sender (on top of the thermostat) and switching on the ignition (fan will spin to speed 1, then speed 2)
This also causes the engine warning light to illuminate. It is not cleared until the fourth time the engine is started.
So it seems I have a duff connection to the sender unit causing the EOBD to register an error and keeping the light on for the next 4 restarts.
I have given it the WD40 treatment in the hope it will fix it.
Unfortunately, now my temperature guage is working properly it seems my thermostat is actually stuck open and needs replacing. I will do a DIY job on it next weekend.
Thanks for the tip about the Ebay manual. I have bought one!
P.S. I hope this cold running may be why I had such poor MPG