How to reset check engine light

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Nov 7, 2018 | 05:00 PM

Tex Dad

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JK Newbie

Joined: Nov 2018

Posts: 2

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From: San Antonio

How to reset check engine light

1998 jeep wrangler sarah. code p0121 throttle position sensor. I just replaced the part but the light is still on.

Nov 7, 2018 | 05:21 PM

JKZinger

JK Junkie

Joined: Sep 2010

Posts: 2,805

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From: Sahuarita, Arizona

Pull the negative battery cable for about 20 seconds.

Nov 7, 2018 | 06:00 PM

Tex Dad

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JK Newbie

Joined: Nov 2018

Posts: 2

Likes: 0

From: San Antonio

I tried that and even tried taking off the positive. Neither worked. I guess I'll have my daughter (her jeep) take it to the parts store and have them clear it. Thanks for the help!

Nov 7, 2018 | 06:40 PM

karls10jk

JK Jedi

Joined: Dec 2010

Posts: 5,642

Likes: 486

From: Knoxville

When I replaced the TPS on my 2000 TJ the light went out immediately and the vehicle idled and ran better. I'm surprised your light didn't go out. Did the idle improve?

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