I haven't been driving my GTR a whole lot lately, so it has been sitting a lot in my hot garage. This has happend to me twice now and I was wondering if this could be heatsoak or something else. I start it after it has been sitting for a long time and it sounds like it is misfiring, so I shut if off and pull the code and it pulls a P0301 code. I let it sit for a few minutes and start it back up and it runs fine. Then the rest of the day drivng it I have no issues at all. Just wondering if anybody else has seen this before. Usually in the summer I do drive it more, but working from home I haven't driven it has much. I replaced the plugs last year and the tune is ECUTEK currenltly running E85 just to provide some other details. Thanks!