Quote:
Originally Posted by laxman21
Was getting code daily, so i changed the MAP sensor and the code stopped for a while. I has came back but not as often, only on the highway when cruising to or from work. Where do I go from here on testing?
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Can we assume that this is on your 99 Blazer? Anyway, check the grounding points for good contact. FireWall to engine block and the ECM to the chasis.