I am a new owner of a 54 reg silver StreetKa. I viewed and purchased the car on Friday 15th of May, On the drive home when it got dark I noticed the engine management light was on but it was very dim you could hardly see it, I called the sellers as soon as I got home and they said they had never noticed it.
Being slightly concerned I took it to a garage on Saturday and the mechanic took the dash off and pulled the cluster out to find a small piece of black tape had been placed over the light to hide it!
I again called the sellers who now are no longer answering my calls and have sent me an email saying it is no longer their problem and not to contact them again.
I am heartbroken that I have a bought my dream car from such dishonest devious people and have been advised its most likely the ECU needs replacing.
If it is the ECU is it expensive to fix?
Does anyone have a wiring diagram for a 4pin O2 sensor or know what voltage should be on the signal wire from the ECU? I have been told this is 5 volts is this true as I am getting 0.05.
Also can you replace the ECU with a second hand one or does this need to be programmed by ford.
Sorry for all the questions just a newbie seeking help
Appreciate any advice you can give me.