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I don't know what the code is, I was told it was an air obstruction.

Have a 2000 ls v6 with a check engine light on indicating egr valve. Replaced valve, sensor, had lines cleaned and made sure vacumn lines were properly connected and the light still returns after about 30 miles. Car runs fine. Any suggestions? This light is driving me crazy.

Hi, I'm Steven. I have a 2000 LS with the check engine light on. Had the light checked and was told that it was the egr valve. Simple enough. Replaced the valve and had the light turned off. In a couple of days the light comes back on so I go by the auto parts store for another check and he says...