CAR OBD CODES
OBD/DTC Search, e.g.P0174
CAR OBD CODES P0174
P0174 OBD Code Definition:
P0174 Fuel Trim System Lean Bank 2
P0174 OBD Code Description:
OBD2 Code P0174 Definition:
Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn’t have cylinder #1. Note: This DTC is very similar to P0171, and in fact your vehicle may show both codes at the same time.
Symptoms
Possible sumptoms of P0174
You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.
Possible Causes
Possible causes of P0174
A code P0174 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of “oiled” air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor.
Possible Solutions
Possible solutions include: In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it’s location if you need help. I find it’s best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it’s dry before reinstalling Inspect all vacuum and PCV hoses, replace if necessary Check for a dirty fuel filter and proper fuel pressure
Note: The information on the P0174 error code is purely informative, if you need more useful information, please consult your technician.
B201A B1A92 B1D79 B1803 B1380 B2652 P0B11 B11AA B1146 B1D22 B125E B1713 B228A B1872 B2966 OBDII Chassis Codes
C110B C1740 C1232 C0638 C1A07 C1258 C1482 C2302 C1926 C1852 C101F C2007 C1115 C1896 C1824 OBDII Network Codes
U017C U0025 U0147 U2525 U2104 U0062 U1753 U010C U2613 U1120 U0450 U2153 U1163 U0023 U0033 OBDII Powertrain Codes
P0C57 P0101 P26A2 P172D P0352 P1797 P0313 P0P49 P1415 P1921 P0ACA P1684 P1536 P22A6 P053A