I have a 98 GTP and about 5 sec. after i start the motor, it stalls. No matter if it's in gear or neutral, still stalls. I had a scanner and it told me the car has a 1646 (EVAP Boost sensor?) code. Anyone have this same problem or a stalling problem they may be able to shed light on? I've pulled the MAF sensor, Idle control valve, and EGR and I get the same problem. Thanks.