3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Terrible mpg and low power... o2 sensor?

Thread Tools
 
Search this Thread
 
Old 12-13-13, 07:01 PM
  #1  
Senior Member

Thread Starter
 
Androidmj's Avatar
 
Join Date: Oct 2003
Location: Rochester, NY
Posts: 313
Likes: 0
Received 1 Like on 1 Post
Terrible mpg and low power... o2 sensor?

Over the past month my fuel economy has plummeted to around 7 mpg. If I hit the gas halfway, the car won't really accelerate. If I hit it 3/4 throttle, it will accelerate.

Sometimes after the car is warmed up and I've been driving for around 20 minutes, the car will drive perfectly fine.

o2 sensor??
Old 12-13-13, 07:21 PM
  #2  
Rotary Enthusiast

iTrader: (25)
 
Peruvianrx7's Avatar
 
Join Date: Sep 2003
Location: Melbourne, FL
Posts: 1,440
Likes: 0
Received 0 Likes on 0 Posts
Do ur normal fuel efficiency check list.
1. Tire pressure
2.spark plugs
3. Wires
4. Fuel filter
5. O2 sensor
6. Oil change
7. Air filter

If nothing works...
You might need to get your injectors serviced and or check for leaks as well as check your fuel pump.
Old 12-13-13, 08:42 PM
  #3  
Senior Member

Thread Starter
 
Androidmj's Avatar
 
Join Date: Oct 2003
Location: Rochester, NY
Posts: 313
Likes: 0
Received 1 Like on 1 Post
Thanks. I'm installing the o2 sensor and fuel filter this weekend. I replaced the fuel filter 25k miles ago or so. I've never replaced the o2 sensor and I've put around 70k on the car since 2003...
Old 12-13-13, 08:53 PM
  #4  
Big Bird's Here!!!


iTrader: (26)
 
ondabirdhouse's Avatar
 
Join Date: Feb 2010
Location: Jacksonville, FL
Posts: 721
Received 2 Likes on 2 Posts
you could also check for proper operation/voltage of the TPS.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
radiantRX-7
3rd Generation Specific (1993-2002)
18
09-15-15 07:04 AM
mulcryant
2nd Generation Specific (1986-1992)
10
09-09-15 05:24 PM



Quick Reply: Terrible mpg and low power... o2 sensor?



All times are GMT -5. The time now is 02:05 AM.