I have a 2002 TJ Sport that I've had for about 5,000 miles and it’s been running rougher since I got it. Odometer currently reads 133,000. I have a misfire in cylinder one only and at times it’s rougher than other times. From what I read, the flashing cel indicates that raw fuel is being burnt in the cat and I do believe for sure that’s what is happening as I ran my Jeep for approx 15 minutes and crawled underneath to find the bottom part of cat glowing from so much heat.
The glow spot was approx 3-4 inches in diameter. My number one cylinder must have more fuel that what it can burn I assume? Seems logical to me since the fuel is heating up the cat and sometimes had string smells. For how long has yours been running good and what was your final conclusion of the cure? I’ve read these forum links until my brain can explode and have learned a much better insight to how things work. @Jerry Bransford has posted numerous times on this issue and definitely seems to be a very knowledgeable person, I just wish I knew of a more clear cut solution. If anybody could reply I’d be most grateful.
The glow spot was approx 3-4 inches in diameter. My number one cylinder must have more fuel that what it can burn I assume? Seems logical to me since the fuel is heating up the cat and sometimes had string smells. For how long has yours been running good and what was your final conclusion of the cure? I’ve read these forum links until my brain can explode and have learned a much better insight to how things work. @Jerry Bransford has posted numerous times on this issue and definitely seems to be a very knowledgeable person, I just wish I knew of a more clear cut solution. If anybody could reply I’d be most grateful.