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Help.. unknown diag codes '95

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Old Dec 25, 2003 | 02:33 PM
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marragtop
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Help.. unknown diag codes '95

OD and CEL lights on my 95 xlt 4.0 4x4 started blinking. Pulled the codes and got 2 codes that my book doesn't reference. They are: 133 and 647. Disconnected battery and 647 went away and OD light is not blinking. 133 code is still there and the CEL light is on. Any help would be appreciated.

thanks,
Mike
 
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Old Dec 25, 2003 | 02:53 PM
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After doing some searching, I found a site that said that 647 code was: Improper gear ratio in 3rd gear. I'm assuming this is related to the fact that the OD light was blinking. Is this correct? Also, still haven't found anything on code 133. Any help is appreciated.

thanks,
Mike
 
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Old Dec 25, 2003 | 07:49 PM
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Mike, I don't think Ford uses a 133 code for OBDI......could it possibly be a code 33? That code is EGR related.
 
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Old May 15, 2006 | 02:52 PM
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PO133 is upstream heated O2 sensor circuit slow response (Bank 1)
 
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