How to repair code p1077
DTC Definition: Intake Manifold Tuning Valve - Short Stuck
May 4, 2014 at 7:04 PM
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HMAC300
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apply vacuum like pic if it holds vacuum then check sensor wire betweent terminals 2 &3 if it has 9,5 ohms if the ecm hasn't been updated get it done if not replace the pcm. if valve doesn't hold vacuum replace it.