P0301 = miss fire on Cylinder #1
2001 SOHC with a P0301 ---> Bad intake manifold gasket. Spray brake cleaner around the intake manifold gasket during idle. Listen for any changes in the idle. If so, you've found your problem. SOHC in the 3rd gen s-series are notorious for this. rockauto.com has new gaskets for 15 bucks. See saturnspot.com for a how-to
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means: Cylinder #1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means:Cylinder no.1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0301 means: Cylinder 1 Misfire Detected
Trouble code P0301 means: Cylinder 1 Misfire Detected
Trouble code P0301 means:Cylinder 1 misfire detected