Hi,

For some time now, at random my Fabia 1.4 BBZ displays lights on the dash and when scanned reveals fault code P1142.

Last month, we did 540 miles over a weekend, largely in the motorway and no codes at all.

It seems to pop up more when in local traffic, on and off the throttle but difficult to be precise.

Normally, it might appear once a month but more recently once a week.

The car drives perfectly fine and once I clear the error code it does not come back straight away.

I know this has been discussed in the past but with the passage of time has a definite solution been found to banish the code for ever.

P1142 I think is MAF or vaccum leak. Worth cleaning contacts and check hoses etc. I did read somewhere on a similar code but it was a bad EGR and dirty throttle body?

Alasdair

Thank you for your thoughts Alasdair.

This is the trouble with this code, there are a number of options, listed as you said. The one guarantee is that it isn’t the MAF as it has not got one!!

No issues from a visual inspection🤔

I would get the EGR valve checked to see if its sticking. As it tends to do it in traffic it may well be the problem. If I remember EGR works at lower revs etc. MY old Seat altea had similar problems but it was the valve on the EGR cooler that was sticking.

Alasdair

Had a quick google and a few posts came up with dirty/failed throttle body plus throttle position sensor/pedal sensor. Might be worth checking and cleaning throttle body as well.

Alasdair

3 minutes ago, Alasdair1 said:

Had a quick google and a few posts came up with dirty/failed throttle body plus throttle position sensor/pedal sensor. Might be worth checking and cleaning throttle body as well.

Alasdair

Yes,

I think that is the next plan as it is to do with low or no throttle openings when it seems to get confused and pop the code up.