engine computer

Recently had car fixed for ignition switch. Two days later check engine light came on. Most time it would start, but I drove to work two days ago, and got off work it will not start. Also before I went to work took it to autozone, he did not get any codes only multiple misfires showed up.

Need to see if you have an RPM signal and/or cam signal. If yes check for spark, and check to see if you can hear the fuel pump running, and/or fuel pressure at intake. Can do more checks, but try these first. There is a recall to reprogram the ECM for bad crank/cam sensor problems.