engine warning light on..............then off?

[big shrek]

on my road trip holiday about 80 miles into the journey the engine electronic system light came on and stayed on through out my holiday for a week then on my way home it went off again? any ideas?

the car was running fine when it was on/off so unsure what to look for

[p fandango]

the fault code will still be stored even tho the lights gone off

[big shrek]

the fault code will still be stored even tho the lights gone off

the only slight issue i have is sometimes when coming to a junction/standstill is the revs will drop and flutter up and down for a few seconds,its done this for maybe 3-4 weeks now,it doesnt do it every time tho

[deathrider311271]

mine does exactly the same thing as yours but in addition to yours it seems to come on when the fuel is low too, i had my codes read with vct2000 and it told me it was throttle pedal and knock sensors, changed these but still does it, as already said u need to get codes read with volvo software as i will be getting mine read again soon.

[Knight Rider]

MIne did this, had the codes read. Needed a new coolant sensor & thermostat. 2 software updates one for engine and one for gearbox. Bu the main thing was boost solenoid was gone/ on its way out.
Get them codes read !!