So, cruisin home last night a strange yellow light invaded my gauge cluster... I can describe the feeling as a mix of a cop pulling behind me after I know i was speeding and having to put my first dog down. After pulling the code it came up as P0174; Fuel Trim Bank Two Condition... Now the Autozone Master Counter Tech who I'm sure is BS certified said the 02 sensors are the most likely cause... There was a noticible bucking under light load between 1500-3k that started last night so I thought the code would point toward my coils. Would a faulty 02 sensor cause something like that?
Aww.... my first SES session
- Thread starter ABQGT
- Start date
fast97gt
Active Member
to answer your question yes, but only the front ones. you can also check your mas air flow meter but not likely you trouble thogh. i would take it to ford for about $65 and have them pin point it, because the autozone hand held scanners are genaric code readers
To be able to tell if it's a 02 sensor your going to have to look at some live data.
You want to look at your MAF voltage and baro readings, also look at your long term fuel trims for both banks
p0174 is a lean code for bank 2 ( drivers side) If you notice the long term fuel trim is high on bank 2 but near normal for bank one then the cause is most likely a bad 02 or a misfire on bank 2.
Has the battery been recently disconnected? Because if it has the PCM will not be able to give you misfire codes, when the battery is disconnected KAM is lost and with it goes the misfire monitor untill it is relearned.
You want to look at your MAF voltage and baro readings, also look at your long term fuel trims for both banks
p0174 is a lean code for bank 2 ( drivers side) If you notice the long term fuel trim is high on bank 2 but near normal for bank one then the cause is most likely a bad 02 or a misfire on bank 2.
Has the battery been recently disconnected? Because if it has the PCM will not be able to give you misfire codes, when the battery is disconnected KAM is lost and with it goes the misfire monitor untill it is relearned.
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