Exhaust gases indicator light, Vauxhall Vectra 1.8l 2008

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15 Jul 2017
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Hey guys, so ive been having an anoying issue with my car. The exhaust Gas indicator light came on suddenly on my drive home from work. The car was juddering a bit before when I accelerated but I thought nothing of it as there were no other issues.
The light did go away for a few days after but came back on. So I tried replacing the Mass airflow meter as I know that can cause juddering, and the original one had never been replaced.
This didn't do crap.
I tried the pedal test and got the following codes: 0301, 0014, 0110, 0100.
I know the 0301 is a cylinder 1 misfire, so I replaced the spark plug and coil pack. Yet the light is still on.
Car seems to struggle at a low rev in first gear, apart from that it still drives so im not sure whats up with it.
There is a slight intermittent rattle while its idle, but its really nothing major.
 
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