Quote:
Originally Posted by nskeates
Getting P0402 code. EGR valve stuck open.
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So that code has reappeared since deleting it?
You might have to take the EGR off again to see if the flap inside it moves as it should (sounds like it isn’t). You might be able to free it up with some lubrication. If its stuck solid even after cleaning, then you’ll need a new EGR valve.
If its stuck open, it will affect your performance.
Check what I’ve mentioned above though too (hoses, intercooler). Any splits in them can cause boost problems.