LR Disco 2 sat for 2 weeks waiting on new reservoir to be shipped along with some other parts. We had unusual temps in NC and found a leak in the reservoir to throttle line. This has since been replaced. Replaced reservoir, bled coolant and took her for a test drive. After putting about 5 gal of premium gas in, the check engine light flashed on/off about 10 times before steady check engine. Usually a gas cap tighten fixes it. We tightened cap, and the light is still on. The above are the codes I am getting. Which should I start with (I ask because I understand some codes come in pairs and can be cleared together).

 

I would start with the misfire...#7 cylinder. Drivers side, closest to the firewall. Check wire/plug. When were plugs/wires changed last? I had a misfire that showed up due to a bad wire. If you have SAI getting to cylinder 7 is a little of a pain. Do your codes come back immediately after clearing them?