Vladster

Thanks John for your updates....I'm hoping to get the mechanic to see if the cat is blocked. Just out of interest where did you purchase your CAT and how much did it cost?

John I look forward to hearing what you discover and I'm impressed with your tenacity.

John did you ever manage to solve this problem....I'm having similar issues.

this is getting irritating. I have a 2005 3.0V6 with 62k on the clock. Car has developed a slight misfire and engine management light eventually comes on. Garage have diagnosed that there is a misfire on bank 1 across all 3 cylinders. Car has had new spark plugs and coil packs and leads have been swapped from bank 2 to 1 and misfire remains on bank 1 Fuelling appears to be all over the show. Vacuum lines have been smoke tested...no leaks found. Out of desperation I've also got the garage to fit 2 new DENSO lambda sensors as I've had problems with Lambda sensors on previous Jags with the V6 petrols. Thoughts...if it was failing MAF, surely the faults would occur across both banks as there isn't a MAF for each bank. So what's causing the fuelling to be all over the place???....any thoughts would be gladly received. Thoughts now...potentially a blocked CAT Quote