New O2 sensor, fuel mileage worse
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Newbie
Joined: Aug 2014
Posts: 7
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Model: Cherokee
New O2 sensor, fuel mileage worse
Tried to put my XJ against a Camaro ZL1. Dropped the driveshaft, and in the process of repairing it, the shop replaced an O2 sensor that was ripped out a while back, and now my fuel mileage has gone from bad to worse. I was getting 14 on the highway, now I'm getting about 10. Help?????
Senior Member
Joined: Apr 2015
Posts: 734
Likes: 2
From: Connecticut
Year: 1995
Model: Cherokee
Engine: 4.0
Tried to put my XJ against a Camaro ZL1. Dropped the driveshaft, and in the process of repairing it, the shop replaced an O2 sensor that was ripped out a while back, and now my fuel mileage has gone from bad to worse. I was getting 14 on the highway, now I'm getting about 10. Help?????
::CF Administrator::
Joined: Feb 2011
Posts: 14,479
Likes: 805
From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
Engine: 4.6 stroker
Different vehicles were designed for different uses. Funny thing is, you don't see camaros trying to kill it offroad...
Stop trying to be fast n furious. You want to race? Go to the track. With an appropriate ride. You got what you deserved.
Sorry if that's harsh, but grow up man.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Tried to put my XJ against a Camaro ZL1. Dropped the driveshaft, and in the process of repairing it, the shop replaced an O2 sensor that was ripped out a while back, and now my fuel mileage has gone from bad to worse. I was getting 14 on the highway, now I'm getting about 10. Help?????
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
Tried to put my XJ against a Camaro ZL1. Dropped the driveshaft, and in the process of repairing it, the shop replaced an O2 sensor that was ripped out a while back, and now my fuel mileage has gone from bad to worse. I was getting 14 on the highway, now I'm getting about 10. Help?????Is this for your 1994 XJ, 4.0 Liter?
If so, you need an NTK 23023 O2S.
If a Bosch O2S was installed, yard it out and install an NTK O2S (above part number).
If this isn't for a 1994, you need to specify what year you have.
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