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In the absence of any other problems (such as lean running condition, worn or non-iridium spark plugs, or damp weather) expect an EGR valve stuck open or a faulty MAP sensor.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoVacuum leak, defective spark plug or plug wire, burnt valve, gasket leak, or if it is coil on plug, a weak coil.
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