post #1 of Old 10-01-2009, 07:39 PM Thread Starter
Troy5061
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1998 ZJ 
 
Join Date: Sep 2009
Location: Winterport, ME
Posts: 26
Code P0138

Im getting code P0138, bank 1 sensor 2. Theres only two sensors so its obviously the rear one. The CEL has been on since I got the Jeep so im not sure if its affecting my MPGs or not, its sucks gas like a chinese crack whore but its a 5.9 so im not sure if the sensor has much to do with that. Does the rear sensor affect gas milage at all on these?


1998 Jeep Grand Cherokee 5.9 Limited
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