Any recommendations on any shops in Orange County area that can troubleshoot/diagnose my CEL issue. I have a cylinder 2 misfire P0302. Happened after I installed RS Ignition Coil Pack/Spark Plugs from ECS and ECS OE performance induction pkg. I already swapped the coil pack and spark plug from cylinder 2 with the old unit. Only thing I can think of is a vacuum leak.