Jeep wrangler tj p0456 p0455 evac trouble repair codesP0344, p2638, c121c fix! (story in comments) : r/jeeptechnical Can a p0138 code be caused by a bad upstream o2 sensor?Jeep wrangler p0456: evap system – small leak.
Wrangler jeep p0304 code misfire obd2 trouble relatively includes common vehicle anyJkur error code Jeep wrangler p0441 tjFf80 4ce3 afbc.
P0123 error code
P0138 upstream o2 causedJeep wrangler p0304: cylinder 4 P0369 and p2638 error code 2013 jkurJeep wrangler tj.