Quote:
Originally Posted by Castillo1
Hello I have a 2004 bmw x5 3.0, I already change the valve the hose and the Air Flow Sensor, I erased all the codes and after a couple of days the check engine light came up again with the same code, does anybody nows what else can be wrong with this, how can I fix it, please help.
Thank You
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Did you check both air flow sensors? The one mentioned by ATLViking is the main air flow sensor and the one I circled on the left side of the picture above is the secondary air flow sensor. Also, check all your hoses. Is your air pump coming on and stay on for about 30-45 second or does it stop after 5-10 second?