Fault code lookup

PowertrainP0149

Caution

Severity: Caution - get it checked when you can

Fuel Timing Error

27 brands affected · Generic SAE J2012 description.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel, air and oxygen sensor range, which also includes coolant temperature faults.

2Common causes

  1. Dirty or faulty mass air flow sensor
  2. Vacuum or intake air leak
  3. Weak fuel pump or clogged fuel filter
  4. Faulty fuel injector
  5. Faulty oxygen sensor
  6. Wiring or connector fault

3Can I drive?

Caution · drive with care

Have it diagnosed if the engine runs badly or the code keeps returning. Because this range includes coolant temperature sensors, watch the temperature gauge: if it climbs into the red, or the engine overheats or stalls, stop safely and get professional help.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 27

BrandCodeDescriptionSystem
Ashok Leyland CVP0149Fuel Timing Error SAEPowertrain
BAIC MotorP0149Fuel Timing Error BrandPowertrain
BMWP0149Fuel Timing Error BrandPowertrain
BYDP0149Fuel Timing Error BrandPowertrain
CheryP0149Fuel Timing Error BrandPowertrain
DaewooP0149Fuel Timing Error BrandPowertrain
DFFSP0149Fuel Timing Error BrandPowertrain
DFFXP0149Fuel Timing Error BrandPowertrain
DFXKP0149Fuel Timing Error BrandPowertrain
EOBDP0149Fuel timing error BrandPowertrain
FordP0149Fuel Timing Error SAEPowertrain
GeelyP0149Fuel Timing Error BrandPowertrain
GMP0149Fuel Timing Error BrandPowertrain
Great WallP0149Fuel Timing Error BrandPowertrain
HafeiP0149Fuel Timing Error BrandPowertrain
HoldenP0149Fuel Timing Error SAEPowertrain
HondaP0149Fuel Timing Error SAEPowertrain
HyundaiP0149Fuel Timing Error SAEPowertrain
IsuzuP0149Fuel Timing Error SAEPowertrain
Land RoverP0149Fuel Timing Error SAEPowertrain
MazdaP0149Fuel Timing Error SAEPowertrain
PeugeotP0149Fuel Timing Error SAEPowertrain
SaabP0149Fuel Timing Error BrandPowertrain
MG (SAIC)P0149Fuel Timing Error BrandPowertrain
TataP0149Fuel Timing Error BrandPowertrain
ToyotaP0149Fuel timing error BrandPowertrain
VolkswagenP0149Fuel trim system (B1): discrepancy in injection times; Open circuit BrandPowertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Related codes

  • P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
  • P0141 O2 Sensor Heater Circuit (Bank 1 Sensor 2)
  • P0142 O2 Sensor Circuit (Bank 1 Sensor 3)
  • P0143 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
  • P0144 O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
  • P0145 O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
  • P0146 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
  • P0147 O2 Sensor Heater Circuit (Bank 1 Sensor 3)
  • P0148 Fuel Delivery Error
  • P014A O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 2
  • P014B O2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 2
  • P014C O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 1)

Browse Pxxx codes or P014xx codes.

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