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Engine runs badly

Posted: May 4th, 2021, 5:54 am
by GuyB
Hello and thank you for accepting the forum.
I have a jeep wrangler tj rubicon that I have had for 2 years. The stroke (4.7) was made by the previous owner.
I have a problem because the engine runs badly at low revs. I changed the throttle body probes, the lambda probes, the catalyst, the pmh sensor, the spark plugs and the coil.
The Throttle body is the original one.
Can it come from there?
thank you

Sorry but this is a google translation .. =)