Checked for Tech bullitens today, news isnt good if this is your problem! Check valve heights!
Superceded Bulletin(s): 03-038, Date of Issue: December 19, 2003 Related Ref Number(s): 03-038 ARTICLE BEGINNING SYMPTOM The engine idles roughly, is hard to start, performs poorly, or has the MIL on with DTC P0301, P0302, P0303, P0304 (cylinder misfire), or P0172 (fuel system too rich). PROBABLE CAUSE One or more exhaust valves have receded into the cylinder head. CORRECTIVE ACTION Inspect the valve clearance and, if necessary, replace the cylinder head. PARTS INFORMATION Gasket Kit: P/N 06110-PHK-A00, H/C 6079479 Cylinder Head: P/N 10003-PJS-A01, H/C 7590821 NOTE: (Supersedes 03-038, dated December 19, 2003)
I sent the rest of the bulliten to your email.
Friday, January 8th, 2010 AT 6:18 PM