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Old October 18th, 2020, 05:04
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8Mud 8Mud is offline
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Join Date: Sep 2003
Location: Central Germany
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Re: 96 XJ Hesitation when hot & cant rev

Just a guess but it sounds like an O2 sensor. I wouldn.'t assume the wiring for the sensor is OK. The rear sensor wire can cook on the exhaust,many have trouble with the wire holder.
The front sensor, more likely, could be a problem. Look closely behind the power steering bracket. It can be hard to see there, you have to figure out a way to inspect all the wiring.
O2 sensors are notorious for not setting a CEL code until they are completely dead.
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