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What you’re describing sounds like a bad injector. Index 12 also go bad. A way to check would be to let the car sit overnight and then pull the spark plugs. The cylinder with bad injector will have a spark plug wet with fuel or will be covered in soot because of bad spray pattern. To rule out other fuelling issues you could check the rail pressure. Any obd scanner app would show you but it’s best to get MHD. About 700 psi at idle and 2000-2800 psi at WOT. LPFP should be around 70psi (this might not be accessible without MHD or INPA). Heard good things about dinan coils.
I assume you’re in the uk because of the number plate? How did you get index 12s on recall? As far as I’m aware the recall wasn’t here.
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