egr valve
#1
egr valve
i have code 404 coming up and comes right back when i clear it , i'm getting crappy gas mileage could this be part of the problem , somebody told me it could cause bad gas mileage
#4
The EGR valve is a solenoid, pintle valve, and pintle position sensor all in one. Try cleaning the valve portion (search for how-to). If that doesn't work, get it checked out at a shop. I think an EGR valve is a little too expensive just to throw a new one on.
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