After 110k Miles I tried cleaning mine to no avail so I replaced it with Ford item (£80 ~$130). WOW Somebody turned my engine way up laugh

Definately the most critical sensor performace wise on the whole car, keep it clean or replace it

Mad Mole
Visit Mad Moles Mondeo Madness
2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
192 BHP, Faster than a speeding Duratec!