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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

what does this code for mycheck engine light mean?

Old Jun 22, 2011 | 05:00 PM
  #1  
olympic42's Avatar
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what does this code for mycheck engine light mean?

I have been having an extremly rough idle in my 95 4runner and the check engine light coming on and off. So i pulled the codes and the sequence of the check engine light flashing was 2 pause 5 pause 5 pause 2. Does anyone know where i can go to figure out what this means, thank you
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Old Jun 22, 2011 | 05:35 PM
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From: middle of no where Alaska
You have two codes there:

25- O2 sensor reading a lean mixture

52- knock sensor

http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf

Just assuming you have the 3vze, but either way, its the same for a 22re or 3vze.
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