Check back showing p1426 code

[Adywood]

Hi guys I’m new to this forum but have had my 08 is 220d 7 years with no issues now I’ve got check VSC coming up but driving no different , showing code P1426 on diagnostic tool 

any help would be great

thanks

ady

[BachelorDays]

There's a 2-min check that requires checking if the fuel cap is still tight.  If you clean around the opening and inside the cap and tighten it and the light goes out, that should be it.  Otherwise you're chasing the cleaning of EGR et al (something well covered in posts). 

The fact that the car is driving fine (at high speeds) hopefully indicates an easier fix.  What's your mileage?

Welcome aboard.