I have a red warning light on the car when I've driven it for the first time to the MOT station. It is above the hicas light and to the right. Looks a bit like a horinzontal rectangle with 4 vertical lines coming from it above and below?

 

Any ideas? Only came on under slight load then when out.

Cat Over Heat Light

cat overheat light by sound of it

cat overheat light by sound of it

seconds :tongue:

i was getting my trainers on :duffer: :)

Cat Over Heat Light

 

Should I worry as it goes out quite quickly?

Cat Over Heat Light

apparantly could be one or many of many things overfuelling ....coil pack connector. indection kit got wet...misfire mine used to do it sometimes

apparantly could be one or many of many things overfuelling ....coil pack connector. indection kit got wet...misfire mine used to do it sometimes

 

Defo one of the above causing as the car has a misfire at the moment, about to post another question about that!

Defo one of the above causing as the car has a misfire at the moment, about to post another question about that!

if its misfiring then unburnt fuel is entering the exhaust system and ignited by the cats causing the light to come on then.

if its misfiring then unburnt fuel is entering the exhaust system and ignited by the cats causing the light to come on then.

 

Great, I'll ignore that then and fix the misfire then.

Missfire caused by lack of spark. Check PTU connections and also coilpack connectors