Trouble Codes: P0171, P0174, P0325, P1447
#1
Trouble Codes: P0171, P0174, P0325, P1447
My check engine light recently went on in my 96 Nissan Maxima. All of my fluids are topped off. I checked for oil leaks a couple of weeks ago and didn't have any (although there is no guarantee that this hasn't change...I will check again). I have the following diagnostic trouble codes (DTCs):
P0171: System too lean (bank 1)
P0174: System too lean (bank 2)
P0325: Knock sensor 1 Circuit Malfunction Bank 1 or 1 Sensor
P1447: EVAP Emission Control System Purge Flow Monitoring
I have the service manual which talks about what could be wrong for each DTC. Does anyone know what could be wrong that would cause all four DTCs? Which DTC diagnostic procedure is most likely to reveal the root cause?
Thanks so much!
P0171: System too lean (bank 1)
P0174: System too lean (bank 2)
P0325: Knock sensor 1 Circuit Malfunction Bank 1 or 1 Sensor
P1447: EVAP Emission Control System Purge Flow Monitoring
I have the service manual which talks about what could be wrong for each DTC. Does anyone know what could be wrong that would cause all four DTCs? Which DTC diagnostic procedure is most likely to reveal the root cause?
Thanks so much!
#2
#6
#7
have you replaced you spark plugs lately? jw buddies 96 max done this told him to change plugs first and BAM fixed it was saying the same thing just didnt know why it didnt throw a misfire code instead but hasent had the codes pop up since and thats been 4 months but might help ya out everyone knows our maxima's have a mind of there own
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bryants95max
4th Generation Maxima (1995-1999)
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10-02-2015 12:52 PM