How to reset Engine Malfunction Light

[StokesBoys1234]

Evening all, could some please advise how I reset the Engine Malfunction light on my 2009 focus 1.6 tdci.

I’ve carried out the repairs but the light remains?

any help would be appreciated 🙂

[TomsFocus]

What was the light on for?  In most cases it'll reset itself once the problem has been rectified.

[StokesBoys1234]

It was the catalyst temp sensor and dpf, I’ve purchased both parts new, just wondered once fitted will the Eng Malf light disappear?

[TomsFocus]

Ok, the light should reset itself.  If not, there is a diagnostic procedure to go through after fitting a new DPF, so the ECU knows it's now got a clean, empty DPF to work with.  This can be done using FORScan but I guess the top end diagnostic machines (Snap ON etc) at an indy garage will be able to do the same procedure.