Hi all,
Engine light came on a week after installing a Borla header on my 97 4.0 I6 TJ - 59,700 miles auto trans. It is the header that is bolt on replacement (no fab to cross pipe can't remember the part #). Error code says O2 sensor. I disconnected the battery cable to clear the error, but it came back on in 2 days of driving. I thought I would get the O2 sensor error while my old header was cracked. The stock header weld was entirely broke at one of the 2 to 1 welds with a couple other cracks. It was bad. I have a couple questions.
- How can ya tell which sensor it is?
- Could the new header be the culprit somehow?
- Would error feedback anything to computer to make engine run a little more sluggish? (almost stalled out today)
- Could the sensor be telling me that my cat is getting clogged?
- How can ya tell if cat "is" getting clogged?
- Any ceramic in the sensor like a spark plug? (So I know how hard I muscle it out without breaking)
- Do these things go out often or is it telling me something else is going bad?
Thanks !!
Kevin
97 TJ