2001 Chrysler PT Cruiser no start

2001 p.T. Cruiser 2.4l non-turbo with 81000 mi. Had just had oil change & tire rotation about 15 miles prior to malfunction. Noticed oil light on, checked & level fine. Proceeded, then a few minutes later it stalled while going down highway (xmas eve). Openned hood & could smell oil but none seen & level still fine. Let it set 10 minutes or so & it restarted but strange engine noise prompted me to shut it off & have towed to nearest shop open, which happened to be a chevy dealer. Tech started & drove short distance, it died again & failed to re-start again. Tech advised battery tested weak, crank position sensor tested bad, oil pressure send unit bad, & sparkplugs fouled. Replaced theses items but no start. Also tried a new coil, but no luck. Fuel pressure & injector function check ok & no codes show.