My S4S has recently been stalling after idling. It can also stall while driving (both at high speed and city traffic). After a stall, it takes about 30 seconds to a minute and then i a able to restart by turning the ignition. However, immediately after the stall the ignition will crank but not start. I have replaced the fuel pump but that has not rectified the issue. I have not run a scan yet. I am hopeful that someone might have some insight. Thanks.