My engine management light came on about 4 weeks ago. it's been looked at by 3 local repair guys, the 1st said it's valvetronic controller however the other 2 said though that's what showing up along with a few other codes they are not too sure. I've switched over to Shell V-Power petrol and driven the car on numerous short 1-2 mile trips and a few 200 mile trips with no loss of power.
Occasionally, the light has not come on at start of a journey then comes on at start of next journey. The last time it didn't come on was after I fille dit with petrol, it stayed off all day then came on next day.
Any ideas folks?