2002-2006 Mini Cooper S (R53)
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Misfire at a loss (help)

Old 06-29-2017, 05:54 PM
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Join Date: Jun 2017
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Default Misfire at a loss (help)

Hey all,
My names Ryan and I'm new to Mini and have had a R53 (06) for about 7 months now. So let's start off with the codes.
P0301 cylinder number 1 misfire detected
P2096 post catalyst fuel trim system too lean bank 1
P0313 misfire detected with low fuel
**note the P2096 was thrown about a week before the car started to misfire but saw no mechanical / running issues.

What I've done so far is change the coil pack, changed the spark plug wires and spark plugs. The old plugs smelled rich to me which is strange with the codes I'm getting. It is a constant misfire as soon as the car is started sounds like a Subaru and smells rich also.
Anyone have any ideas what this could be. I was leaning towards doing a compression test next along with fuel pressure I'm assuming there is a test port on the fuel rail but I'm not sure because everything is under the supercharger intercooler. But wanted to get the opinion of the forum to see if there were common issues around this problem. I appreciate your help.

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