02 Ranger 2.3 weird problems
2002 Ranger 2.3, standard trans, runs really rough when cold. Sets codes po352, and cylinder 2 and 3 misfire codes. Takes 20 min to warm up. When fully warm temp sensor is reading 240 and holds steady. When fully warm runs fine. When computer is in open loop runs rough then switches to closed loop it runs fine. I really need help with this one.