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95 gt o2 codes sayin lean and rich??? and another question

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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

95 gt o2 codes sayin lean and rich??? and another question

Old 05-20-2012, 11:33 AM
  #1  
mxbadboy03
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Default 95 gt o2 codes sayin lean and rich??? and another question

i pulled the codes and it says 172 173 176 177 right side lean code and right side rich code and also the same on the left does this mean the o2's r bad ??? also got a 327 DPFE or EVP circuit below minimum voltage of 0.2 volts what is this?
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Old 05-20-2012, 02:53 PM
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mjr46
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check and make sure the ground for the o2's is hooked up, also was koer run with engine up to operating temp??
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Old 05-20-2012, 03:55 PM
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mxbadboy03
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yea i replaced both those codes r gone now i have a code 51 which is Engine Coolant Temperature Circuit Open (CM,O so how do i fix that and i also have a 332 which is EGR valve opening not detected but i have a egr delete sensor so why am i getting this
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Old 05-21-2012, 12:18 AM
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TrimDrip
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With the 51, did you wait until the car was at operating temp before you ran the codes? If so, maybe it is time to put in another sensor.
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Old 07-31-2012, 07:14 PM
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Originally Posted by mxbadboy03 View Post
i pulled the codes and it says 172 173 176 177 right side lean code and right side rich code and also the same on the left does this mean the o2's r bad ??? also got a 327 DPFE or EVP circuit below minimum voltage of 0.2 volts what is this?
hey whats going on? I have a 95 also and just got a 327 code for EVP or DPFE circuit below minimum voltage. What is that and what did you do to fix yours?
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