My Escort Cosworth is either misfiring, overfuelling or a combination of the two. It is getting an even spark to all cylinders, but runs very lumpily and fouls the plugs very quickly.

What would be the symptoms if the phase sensor and speed sensor were not working?

Also, if the coolant temperature sensor had gone, would it cause the car to overfuel from cold?

Any help would be greatly appreciated.

 

if it was the water temp sensor the injectors whould not fire evenly and whould not run about the other 2 i cant help

 

Coolant temp sensor would cause it to over fuel...

The phase and crank sensor would cause it to cut out, struggle to start or run for a brief moment then die...

 

Map sensor would cause it to over fuel too.

Better getting a pectel monitor on it,this reads all the sensors and it wil tell you which ones faulty.


Dave.