Fuel temperature sensor and egr codes

[Pete the painter]

Hello folks. Recently had overheating issues I came here got advised turns out it was faulty thermostat and that sorted that issue...but...I'm back again seeking yet more advice if possible.

It's a 1.6 hdi Berlingo van and I've got 8 error codes detected on scanner. 3 of the codes are aimed at the egr. Insufficient flow, control circuit and recirculation low

3 codes are aimed at the fuel temperature sensor, circuit A high..

Can anyone advise where the fuel temperature sensor is located and what it looks like. I have an idea where the egr is found back right side under fuel filter.?

As a complete amateur when it comes to engines any other advice what steps I could take to diagnose and where to start would be gratefully appreciated.

[RichardW]

Is the engine management light on? If you clear the codes do they come back?