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Old 11-19-2013, 06:53 PM   #1
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Help with throttle position sensor

The check engine light code was for the throttle position sensor. I unplugged a small piece that looked like a tiny spark plug, from the driver side of my engine block. I forgot and drove the jeep a 1/4 mile and then reconnected it. It was sucking in air. Now my jeep is running poorly. I tried disconnecting the battery to reset it but this did nothing. I think the parts are still good. What do I need to do to get the right intake ratio again?

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Old 11-20-2013, 08:52 AM   #2
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Any ideas?

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Old 11-21-2013, 12:24 AM   #3
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The TPS is on the throttle body

No idea what you unplugged. Take a picture
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Old 11-21-2013, 07:08 AM   #4
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Ok, I'll take one this afternoon
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Old 11-21-2013, 07:26 AM   #5
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Here's the location of the TPS in case you just weren't sure. From the view of this diagram, you would be standing on the driver side of the rig looking down at the throttle body.
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Old 11-21-2013, 09:07 AM   #6
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I replaced the tps, But it's still sputtering and choking out while driving.
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Old 11-21-2013, 09:54 AM   #7
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Where exactly was the "little spark plug looking" piece that you unplugged located?
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Old 11-21-2013, 04:50 PM   #8
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It's running a little smoother since I replaced the tps but not much and the check engine is still on
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Old 11-22-2013, 07:01 AM   #9
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It's a little better after it warms up
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Old 11-22-2013, 07:25 AM   #10
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Check for vacuum leaks, at the "Tee" and the hard plastic line connecting to it. Something might have cracked, loosened up, etc.
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Old 11-22-2013, 07:44 AM   #11
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What would be the best way to do that?
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Old 11-22-2013, 08:03 AM   #12
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That fitting is the vacuum line that activates the HVAC Controls. I was under my hop after changing spark plugs and could hear a hissing sound when it was running. That vacuum line an come disconnected for some reason. When I reconnected it, the Jeep ran really bad. Disconnected the battery overnight and it ran perfectly.
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Old 11-22-2013, 09:35 AM   #13
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I tried disconnecting the battery over night, after I changed the tps and it is still messing up

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