Need advice on my friend's 96 Sebring, 6 cyl. She replaced the fuel pump, distributor, spark plugs and wires, and a sensor which is unknown to her (until she finds the receipt). Car dies out at random times. She says she can be driving at 30-40mph and it dies, pulling away from a stop light, driving on the expressway at 65mph, etc. I suggested she get her injectors cleaned and a new O2 sensor (or does this car have two O2 sensors?). Now she also says the check engine light came on and it was a code for the EGR valve. Her mechanic says a bad egr valve shouldn't make the car die out. Any ideas? Ignition related? Thanks!