It is running too rich (too much fuel and not enough air) Check for blockages at intake. Also, has the check engine light come on? Does the engine have its normal power other than the idle problem? You may also need to check the fuel pressure. The regulator may be bad. Have you checked for vacuum leaks? Also, make sure the EGR isn't plugged.
Let me know what you find.
Sunday, December 13th, 2009 AT 12:33 AM