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Old 05-30-2019, 09:45 PM
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Throttle Body Replacement

We just removed and replaced the throttle body 2012 JKU. Due to codes and behavior, figured it was better than taking it to a mechanic. Never smelled the exhaust before, now i do. Haven't driven it, just started it. Any ideas? Do i have to calibrate it??

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Old 05-30-2019, 11:27 PM   #2
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So much left unsaid here. The throttle body is so easy to replace that I would never recommend anyone have a shop do it. 1 screw, 4 bolts, 2 connections and 4 clips on the air filter. I would sooner Skype someone through the procedure.

What was the code?

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Old 05-31-2019, 07:07 AM
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P0221 and P2135
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Old 05-31-2019, 07:09 AM
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Sorry, the battery wasn't disconnected, someone said it should have been? Should it be driven to recalibrate itself? Or is there something worh the jey on and depressing the accelerator, (read that somewhere)
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Old 05-31-2019, 03:07 PM
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ok, ive unhooked the battery and replaced the cables. The codes were gone. I drove to town, when i stopped at a stoplight, they came back on and it started surging and stumbling. What else needs to be done when replacing the throttle body? Im at a loss. Im turning to the Jeep forum as i don't know any jeepers near me that can help.
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Old 05-31-2019, 03:28 PM   #6
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Changing TB is a simple procedure, i would check for vacuum leaks and TB and pedal wire harness and connectors.
Did you replaced TB gasket also?
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Old 06-03-2019, 03:38 PM   #7
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The smell, my guess is the hose that goes into the flex tube from the airbox is not connected. The codes are directly related to the TB. Either your replacement is also bad or there is an issue in the wiring. Do you have a multimeter?

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