For some reason I can't figure out my check engine light comes on at highway speeds around 65mph. It comes on for a couple of minutes then goes off. Then it will come back on after a few mintes and then go off again. This only occurs at highway speed not driving around town. The motor is a 22re with the a stock turbo. I've searched the forum but can't find anything. I'm not to worried about it just wondering if anybody else has had this problem or any ideas of what might be causing this.

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