I knew it!
Pop it back on mate, should be fine. If it happens again try a stronger clamp/clip. You wont 'need' the faults cleared (i'm not 100% sure it will even log a fault for this), car will run as normal. Engine management light will go off after a few days, mine did anyway 
If it still pops off with stronger clamps then as Mike suggested, you will need a silicone reducer from Forge.
If it still pops off with stronger clamps then as Mike suggested, you will need a silicone reducer from Forge.
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