97 TJ 2.5 standard. So frustrated!!! when I hit a bump engine looses power then recovers quickly. When backing up losses power, when i push the clutch back in it recovers. When I hit a bump the fuel gauge goes down....next bump gauge comes back. Also "check engine" light does the same.
Cleaned battery terminals, checked all grounds I could see, shook and pulled on all wiring to recreate issue, replaced cam shaft position sensor, went to Auto Zone for a scan....scan says po138 which they say is an O2 sensor. Don't think that is the problem. Is it the problem?...two sensors are involved upstream and downstream...which one? Help!!!