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Hi Guys,

A little late in the update but my wife has been ill.

I put a scanner on the car and Codes P0300 (generic misfire) P0302(Cylinder 2 misfire-invalid signal) and P0306(Cylinder 6 misfire) showed.

I'm thinking that the reason the smell came so late in the ride was due to unspent fuel entering the catalytic converter from cylinders 2 and 6, and igniting, and therefore the reason for the smell. So I'll try rplacing the plugs in those cylinders (or swapping them with another cylinders' plugs (as a start) and put the scanner back on.)
Ignition coil swap is worth it as well.

C
 
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