Code 25 95 4Runner
#1
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Location: Leadville Colorado
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Code 25 95 4Runner
Well, i got a code 25 a few weeks ago so I replaced my o2 sensor because I had been getting 13.5 mpg around town. I've got 160k miles on my truck so I thought a new o2 would help mileage. It didn't do anything at all that I can tell. What else could a code 25 be? The check engine light only came on once and it came up with a code 25, I then disconnected the battery and it went away. What else could a code 25 be? Would a tired EGR valve affect gas mileage?
#2
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Code 25:
AIR/FUEL RATIO LEAN INDICATOR--LEAN SIGNAL SENT TO ECU FROM O2 SENSOR
--INJECTOR FAULT(S)
--FUEL PRESSURE
--OXYGEN SENSOR
--AIRFLOW METER OR MAP SENSOR
--IGNITION
--ECU
Happy hunting...
AIR/FUEL RATIO LEAN INDICATOR--LEAN SIGNAL SENT TO ECU FROM O2 SENSOR
--INJECTOR FAULT(S)
--FUEL PRESSURE
--OXYGEN SENSOR
--AIRFLOW METER OR MAP SENSOR
--IGNITION
--ECU
Happy hunting...
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#13
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Location: Burlington, ky
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Mine is also only giving a code 25....
And i am getting horriable fuel millage....
I have replaced my fuel injectors with a set from flamethrower, replaced my fuel filter, replaced my afm ( p.o. was inside it and dinnt make anything, was getting a 25 and 26 code till i did that)
Egr valve and pair valve delete so i can see the #5 plug now!!!
And the idle is sub par.....
I do not understand what is going on here im only getting a code 25 but like 7 miles to the gallon!!!!!
The only thing i have not checked is my fuel pressure, ignition, ecu, aand o2 sensor....
She only has 127k on her and has had a new heads put on in 05 at 105k....
And i am getting horriable fuel millage....
I have replaced my fuel injectors with a set from flamethrower, replaced my fuel filter, replaced my afm ( p.o. was inside it and dinnt make anything, was getting a 25 and 26 code till i did that)
Egr valve and pair valve delete so i can see the #5 plug now!!!
And the idle is sub par.....
I do not understand what is going on here im only getting a code 25 but like 7 miles to the gallon!!!!!
The only thing i have not checked is my fuel pressure, ignition, ecu, aand o2 sensor....
She only has 127k on her and has had a new heads put on in 05 at 105k....
Last edited by Jason Holdeman; 08-25-2016 at 03:52 AM.
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