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O2 Sensors?

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Old Oct 29, 2008 | 10:09 AM
  #1  
bigugly82's Avatar
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Rock Crawling
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From: San Antonio TX
Default O2 Sensors?

Hey guys, it's been a while since I've been on here. After looking over the past days of posts it looks as though all is well.

Question: '03 Disco, almost 50K miles. I run 92 or 93 octane (prem, not sure #) and I'm only getting about 150 miles per tank. I've got NO MODS to weigh it down either. I'm thinking the O2 sensors maybe shot and I've running way rich. What do we think?

-Ug
 
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Old Oct 29, 2008 | 10:34 AM
  #2  
Spike555's Avatar
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Joined: Jun 2007
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From: Grand Rapids MI
Default RE: O2 Sensors?

Check your tire PSI and replace your airfilter.
Low tire PSI can cause as much as 20% reduction in MPG and a clogged airfilter another 25% or more if it is completly clogged.
After that I would replace the O2's if no change.
 
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Old Oct 29, 2008 | 10:35 AM
  #3  
Landzu's Avatar
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Joined: Apr 2005
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From: Dallas TX
Default RE: O2 Sensors?

Is you check engine light on????????
If not its not your 02 sensors or anything else with the motor.
You could have a stuck brake.
 
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Old Oct 29, 2008 | 02:02 PM
  #4  
bigugly82's Avatar
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Rock Crawling
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From: San Antonio TX
Default RE: O2 Sensors?

No, there are no engine lights on, etc. Would any codes pull in the CEL isn't on??


 
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Old Oct 29, 2008 | 02:11 PM
  #5  
Spike555's Avatar
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From: Grand Rapids MI
Default RE: O2 Sensors?

If the low MPG just started and you have only driven like one tank of gas then there may be some "soft" codes.
Check the tire PSI, the air filter and then take it to a brake shop for a free brake inspection, they will tell you if there is a hung up brake or not.
 
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Old Oct 29, 2008 | 04:08 PM
  #6  
Landzu's Avatar
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From: Dallas TX
Default RE: O2 Sensors?

I would look into a locking gas cap.
 
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