Hi Max,
My Series 4 Aero 8 has Morgan Racing SuperSports exhaust fitted. Just ahead of lengthy European tour this year had orange glow spring to life. I can sympathise with that sinking feeling/tension. Reading was Code 001 2c85 Oxygen Sensor at fault probably post near side catalytic converter not pre(there are 2).
Mobile tune up just reset the system and so emabarked on 3000 mile trek. In Croatia it sprang into life again for 500 miles or so. Poor fuel? I eventually tanked up twice with some really decent fuel and it disappeared! A clue there?
Car ran smoothly throughout and since (last May). Relax, have another Tinnie and watch the cricket!
