1.6 fsi map sensor problem

rippling

Member
Ok guys my 1.6 has a fault code map sensor signal to high with engine management light on
I have changed the sensor but the light is still on after being cleared.
If it's not the sensor what else might it be?
I noticed the sensor is 4 connections. But the car only has 3 wires going to it?
How can I check the connector to see if the connection are ok?
Thanks also the brakes don't seem to be good. That's after. I am wondering if the small non return valve is leaking and if that related to the fault
 
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