Notices

2.3 Mileage

Thread Tools
 
Search this Thread
 
Old Jun 7, 2006 | 09:54 AM
  #1  
Powerkleen's Avatar
Powerkleen
Thread Starter
|
Senior User
Joined: Oct 2003
Posts: 205
Likes: 0
2.3 Mileage

I have a 95 Mazda B2300 with a 5 speed manual tranny. I am currently getting about 25 MPG due to 95% of my driving is hwy. Both of my 02 sensors need replacing. Is this actually going to take my mileage higher?

Thanks for any input.

Anthony
 
Reply
Old Jun 8, 2006 | 10:24 AM
  #2  
jimdandy's Avatar
jimdandy
Posting Guru
Joined: Feb 2006
Posts: 1,448
Likes: 1
Possibly, if they aren't working properly. But, you would think you would have other symptoms if this were the case. Why do they need changing? jim d
 
Reply
Old Jun 8, 2006 | 12:51 PM
  #3  
Powerkleen's Avatar
Powerkleen
Thread Starter
|
Senior User
Joined: Oct 2003
Posts: 205
Likes: 0
I have had the truck for a little over a year. The check engine light finally burnt out after about 7 months. I check the codes and clear them using a superchips programmer about once a month and everytime I do this the codes for the upstream and downstream 02 sensors are listed.
 
Reply
Old Jun 10, 2006 | 05:11 AM
  #4  
tula771's Avatar
tula771
Junior User
Joined: Nov 2005
Posts: 87
Likes: 0
I owned a 96 ranger with the 2.5, it got 20mpg city and 25mpg highway. If you have the 4.1 rear end, thats the mpg you will get....period. Great truck, great hauler as I often had a 800-1000 load on mine and hauled the maple 460 miles.
 
Reply
Old Jun 10, 2006 | 08:58 PM
  #5  
AlfredB1979's Avatar
AlfredB1979
Posting Guru
Joined: Jul 2003
Posts: 1,978
Likes: 1
From: Alvin, Texas.
What are the specific codes you get? They may NOT necessarily be indicative of bad O2 sensors...as evidenced by you still having rather great MPGs to this point.
 
Reply
Old Jun 11, 2006 | 12:22 AM
  #6  
rangerfan's Avatar
rangerfan
Posting Guru
Joined: Jul 2005
Posts: 1,958
Likes: 0
From: Southeastern Indiana
25 mph is pretty good. I'd bet its something else.
 
Reply
Old Jun 11, 2006 | 06:56 AM
  #7  
tula771's Avatar
tula771
Junior User
Joined: Nov 2005
Posts: 87
Likes: 0
I did not think 25mpg was very good. Most of the time city/highway it got 20mpg. I was pretty hard on the truck. I overloaded it twice,(2100 pound load) the drivetrain worked fine, but I hurt the suspension. $$$ Last year Ford offered me $$$ on a trade in and the F150 cost 500 dollars less than my Ranger did new back in 99. Would you say they are giving F150s away. I got the 4.2, and the MPG is bad--17mpg city/highway.
 
Reply
Old Jun 12, 2006 | 08:18 AM
  #8  
Powerkleen's Avatar
Powerkleen
Thread Starter
|
Senior User
Joined: Oct 2003
Posts: 205
Likes: 0
The codes are P0135 and P0141. Both are listed as sensor heater circuit fault for each 02 sensor. I crawled under the truck (hard to do) and found that the upstream sensor was unplugged but had the connector partial melted from laying on the exhaust. The previous owner put a clutch in it right before I bought it, must have left it disconnected.

The 25 miles to the gallon, I am satisfied. I travel 150 miles round trip to work and I bought the truck for $500 and have put 40K miles on it in just over a year.

I was just wondering if it would increase my mileage the 10% like all the shops tell you about with bad 02 sensors. If not, then I can deal with the codes being there, cause as I previously stated the check engine light no longer works.

Thanks for all of your info.

Anthony
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Jul 22, 2006 | 08:14 AM
  #9  
I_Thnk_Ford's Avatar
I_Thnk_Ford
Elder User
Joined: Jan 2002
Posts: 525
Likes: 2
From: Mansfield, Texas
I did not think 25mpg was very good. Most of the time city/highway it got 20mpg. I was pretty hard on the truck. I overloaded it twice,(2100 pound load) the drivetrain worked fine, but I hurt the suspension. $$$ Last year Ford offered me $$$ on a trade in and the F150 cost 500 dollars less than my Ranger did new back in 99. Would you say they are giving F150s away. I got the 4.2, and the MPG is bad--17mpg city/highway.
Thats why they are giving them away.

Robert P.
 
Reply
Old Jul 22, 2006 | 09:45 PM
  #10  
tula771's Avatar
tula771
Junior User
Joined: Nov 2005
Posts: 87
Likes: 0
Mph

well, I just made a 500 mile trip and got 22-23mpg........thats not bad for a 150, its even better than many minivans, and cars with the preformance 6 cylinders.
 
Reply
Old Jul 23, 2006 | 11:13 AM
  #11  
tomw's Avatar
tomw
Logistics Pro
20 Year Member
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
The O2 sensor will allow the engine to go into closed loop mode, where it gets its best mileage. You can take apart the melted connector, and just connect the wires directly to the pigtail on the O2, or you can boneyard it and clip one from a similar truck.
It should have an effect on mpg. Do that before tackling the other O2 code, as the ECM compares readings.. or it may not, 'knowing' that the upstream O2 is not functional.
tom
 
Reply
Old Aug 11, 2006 | 07:34 AM
  #12  
Powerkleen's Avatar
Powerkleen
Thread Starter
|
Senior User
Joined: Oct 2003
Posts: 205
Likes: 0
Sorry.....went over to Germany and England for a couple of weeks....Just got back. I will try the connection of the wires the hard way. I also just found that it seems the fan clutch is locked up. I started the truck after sitting all night with the air temps at 72F and the fan is running right off the bat.

Thanks for the info on connecting the sensor first to see if it will bring the other one back online so to speak.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Anthony Koertner
1967 - 1972 F-100 & Larger F-Series Trucks
3
Oct 18, 2012 03:41 PM
shorebird
General NON-Automotive Conversation
13
Jul 11, 2011 05:29 PM
Anthony Rouse
Electrical Systems/Wiring
2
Jun 20, 2005 01:24 PM
FE75XLT
1973 - 1979 F-100 & Larger F-Series Trucks
8
Jul 27, 2002 06:52 PM
bigf150
1973 - 1979 F-100 & Larger F-Series Trucks
10
Mar 13, 2002 08:32 AM




All times are GMT -5. The time now is 12:39 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE