Mechanics

CHECK ENGINE LIGHT

1994 Toyota Tercel

Computer problem
1994 Toyota Tercel All Wheel Drive Automatic 142610 miles

After getting a 25 & 26 code, I changed the O2 sensor and now I'm only getting a 26 code. If by changing the O2 sensor it cleared the code 25, the air-fuel ratio lean, but not the code 26, the air-fuel ratio rich. What is the most possible reason for the code 26 to remain showing? Could you guide me as what would be my next step to clear up this code as well.
Thank you in advance for your advice and help.

Tom
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TomTFlores
April 13, 2010.




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