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Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
I scanned my codes and am getting p0138, p0141 and p0442. The from my torue scan it looks like the precat sensor does rapidly change voltage as expected but the post cat is stuck at 1 volt with no movement. I briefly looked over the wiring to the sensor and it looks good. It's important to note the post cat sensor was changed 3 years ago and has maybe 15,000 miles on it and is a good brand (ntk).. Any suggestions?
09-28-2018, 11:54 AM
cherokee xj codes p0138, p0141 and p0442
