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NVS 90 LX 08-10-2017 11:47 AM

EGR valve - 90' Mustang
After failing smog, I was pointed to the EGR valve. The only code the car has is 33.

Do I need to clean the valve?

I tested the EGR valve and the EGR did not hold any pressure (see video link below). Will cleaning the EGR valve help with this or does it need to be replaced?

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