Eml light

[Ghs]

We had the eml light come on apx a week ago , car ran fine & did a 300+ mile journey with no issues , today the eml light has now gone out . I was thinking this could be related to apx 6 months ago we had a eml light come on & was diagnosed as faulty catalytic converter , the warranty people asked for more tests but in the meantime the eml light went out so garage said see how you go ,if it reappears bring it back , which we did .
The car is a Ford focus 1.0 if it helps , I’m assuming even though eml light has gone out , the issue would still be recorded ?

[Mr E]

Read the codes (or get someone to do it for you)

[Ghs]

Mr E said:

Read the codes (or get someone to do it for you)

Thankyou , I’ll pop it in the garage

[mikeyr]

A bluetooth code reader (and the free Torque app) is quite cheap off amazon and can be useful for the high level stuff.

I had a similar engine which had a faulty cat sensor which brought on an EML that disappeared when a garage unplugged it. But think they said later cars that unplugging would display an EML whereas on the version I had it didn't display an EML but did show a fault code on a reader. So I'd expect it to show up on that as a historic/present fault even if it's not sufficient enough to trigger an EML on the dash.

[paulmakin]

some cars have certain EMLs which recycle themselves off if the fault doesn't re-emerge - but a code will usually be stored

[vw_99]

Common for this to happen on 1.0 focus.
A lambda spacer on 2nd sensor and run every 3 or 4th tank on super unleaded.

[E-bmw]

vw_99 said:

Common for this to happen on 1.0 focus.
A lambda spacer on 2nd sensor and run every 3 or 4th tank on super unleaded.

But only if the code is for the emissions obviously.

[vw_99]

E-bmw said:

vw_99 said:

Common for this to happen on 1.0 focus.
A lambda spacer on 2nd sensor and run every 3 or 4th tank on super unleaded.

But only if the code is for the emissions obviously.

Yea. Didnt read it all properly.

But the 1.0 ecoboosts dont like e10 fuel (or there belts)

[Doesitdrive]

vw_99 said:

E-bmw said:

vw_99 said:

Common for this to happen on 1.0 focus.
A lambda spacer on 2nd sensor and run every 3 or 4th tank on super unleaded.

But only if the code is for the emissions obviously.

Yea. Didnt read it all properly.

But the 1.0 ecoboosts dont like e10 fuel (or there belts)

How does fuel affect the belts?

Seen loads with 130 plus k, and I doubt they were on E5.

Loads with lower miles well over 10 years old still running about too.

Oil grade does though, very quickly if you put in the wrong stuff.
We just bought a 21 plate courier with the old belt engine, 80k, oil lighting and top end rattling, the clue was the litre can of wrong oil , empty in the van. Its enough to fk it.