Question about 1992 Pontiac Bonneville
Your mass air flow meter is bad, change it and replace air filter at the same time...or it's the idle-air control valve.
Posted on Jul 13, 2009
Could be a problem with the smog pump, assuming it has one. Chek the PCV valve, if it is stuvk open or worn out it will affectivly be a vac leak. Good Luck
Posted on Jul 12, 2009
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Posted on Jan 02, 2017
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