new o2 sensor!! reset the pcm??

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Apr 27, 2011 | 10:09 PM

87xj Pioneer

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Joined: Mar 2011

Posts: 253

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From: Shawnee, Oklahoma

Year: 1987

Model: Cherokee

Engine: 4.2 .020 over

new o2 sensor!! reset the pcm??

I just installed a new o2 sensor and I'm wondering if I should reset the pcm or not??

Apr 27, 2011 | 10:20 PM

99 Purple XJ

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Joined: Oct 2010

Posts: 1,889

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From: Long Island N.Y.

Year: 1999

Model: Cherokee

Engine: I6 4.0

Disconnect both battery terminals and touch them together for about 15 seconds and it will take about 50 warm up cycles to relearn the system

Apr 27, 2011 | 10:40 PM

87xj Pioneer

Thread Starter

Seasoned Member

Joined: Mar 2011

Posts: 253

Likes: 1

From: Shawnee, Oklahoma

Year: 1987

Model: Cherokee

Engine: 4.2 .020 over

I know how to do it... I'm asking if I should!!

Apr 27, 2011 | 11:57 PM

89Laredo

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Joined: May 2009

Posts: 10,417

Likes: 58

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0

Yes

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