I have a 02 Disco 2 with 110,000 miles that is running rich and while stopped for traffic lights it will begin to idle really rough and produce a strong smell from the exhaust. I have changed MAFS, plugs, wires, air filter, and fuel filter. Only codes that has showed is P0327 and P0308. No coolant loss but have noticed that while idling a small puddle will form at the tailpipe. Please help I going crazy and broke.

 

There is a 15A fuse in the fuse box under the hood, I'm thinking is like the F2 fuse but I may be wrong. Just check all the 15A fuses under there. Had the same issue on my 99. Let us know if that's it.

 

327 is a bad knock sensor, drivers side, 308 is a misfire, when was it last tuned along with new 8 mm plug wires?

 

I will have to check those fuses. The wires are 8mm. I was wondering if it could be a vacuum leak but I have checked everywhere I can possibly think of.

 

I have a 2003 discovery II with 127,000 miles. Last week it started having the same symptoms you describe with yours. I also have changed plugs, wires, O2 sensors. Please let me know if you found a solution.