This is topic Three codes - what to make of them in forum Tech Talk at Northern California Ford Owners  .


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Posted by Greenandsilver (Member # 1371) on :
 
Ah so I ran the scanner, and pulled three codes, if anyone has any ideas on what to check, fix and what not, let me know. Note that O2 sensors are brand new...
KOEO...
542 Fuel pump secondary circuit failure control module to ground
KOER...
314 Air system inoperative during KOER bank 2
543 Fuel pump secondary circuit failure battery to control module
 

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Posted by st5150 (Member # 51) on :
 
The first and last codes mean nothing, the EEC randomly throws those codes. The middle code could mean one of your O2 sensor isn't switching fast enough (old?), you have long tubes on, or you have some sort of problem with the smog pump system.
 

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Posted by Greenandsilver (Member # 1371) on :
 
Interesting. Ok well there is one thing that I've touched on my exhaust system and that is the smog tube, which is disconnected and is free-flowing because I had too much trouble attatching it too my off-road H pipe and was told that with an off road pipe, it was not necessary to be attatched to it.
 

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Posted by st5150 (Member # 51) on :
 
Well thats why you have that code then You're right, you don't need it with an off road pipe, but connecting that tube will keep your computer from giving an error code.
 

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Posted by Greenandsilver (Member # 1371) on :
 

quote:

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Originally posted by st5150:
Well thats why you have that code then You're right, you don't need it with an off road pipe, but connecting that tube will keep your computer from giving an error code.

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