Check engine light after exhaust manifold replacement

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May 13, 2011 | 07:32 PM

#16

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Quote:

Originally Posted by AdvanZ33

Just tried the key on key off, if I'm reading it right it flashed:
1-2. 2-1. 5-5.

Does that sound right?

code 21 search it

May 13, 2011 | 07:33 PM

#17

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

prob o2 something

May 13, 2011 | 07:36 PM

#18

AdvanZ33

Member

Joined: Oct 2010

Posts: 145

Likes: 0

From: Eastern NC

Year: 1995

Model: Cherokee

Engine: 4.0

Perfect. Thanks!

May 14, 2011 | 10:01 AM

#19

dukie564

☠ CF Sheriff ☠

Joined: Nov 2009

Posts: 15,197

Likes: 18

From: Aberdeen, MD

Year: 1995

Model: Cherokee

Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts

Yup
21 Oxygen sensor signal out of range, possibly shorted

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