Engine management light on & dashboard screen displays "Anti Pollution Fault"
Runs lumpy & feels hesitant particularly when cold.
Had it plugged in only fault found was Coolant Temp sensor reading -30 degrees C.
Fitted new (Peugeot) sensor.....no difference!
Coolant sensor still reading -30 & Air temp sensor now reads -18 degrees as well!

There's only 1 coolant temp sensor for everything - dash gauge & rad fan operate normally.

I don't have access to wiring diag.s or Pin data, but am told the air & coolant sensors are on different circuits.

Any thoughts?
Thanks, Mike.