Yesterday did my normal evening 50-mile run to clear the mind after work and parked for 10 minutes. Restarted but it was firing on a single cylinder with the service message/icon lit up. Checked for obvious plug disconnect and couldn’t find one. Rode away at half-speed so to speak for about 8 miles and the engine suddenly picked up on both cylinders. Rode OK for a couple of miles and it went back to 1 cylinder. Almost 3 miles from home went back to normal operation. Restarted in garage and everything was OK. Haven’t toggled through the diagnostic codes yet, but was curious if anyone has any obvious suspects to check. Thanks.