My 2001 Chrysler Neon (they were badged Chrysler in Australia) misfires when moving,stalls when idling and tacho bounces up as the engine misfires at about the same distance from departure - about 5km. after about 8km when fully warmed up it runs fine as it does when first started. Shows no fault codes and chk engine light does not come on. Any suggestions as to what this can be?

 

Check for coolant temp sensor, and EGR system.