MANUFACTURER REFERENCE

Generic OBD-II code references — Page 11.

Read the source definition and confirm the exact vehicle, reporting module and diagnostic procedure.

Generic OBD-II

P014E

These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

O2 Sensor Slow Response - Rich to Lean Bank 2 Sensor 1

O2 Sensor Slow Response - Lean to Rich Bank 2 Sensor 1

Bank 2 oxygen circuit diagnosis needs the modern circuit identity

bank-2 upstream sensor wire short-to-ground monitoring

bank-2 upstream oxygen interface short-to-battery check

bank-2 upstream oxygen response uses several timing tests

Bank 2 no-activity evidence and the later pump-current monitor

bank-2 upstream heater temperature performance

Bank 2 rear sensor activity requires a completed functional check

bank-2 downstream low signal and load-pulse evidence

bank-2 downstream high signal with readiness checks

interpreting a slow rear oxygen sensor on Titan bank 2

Upstream wide-range sensor delay during a rich-to-lean change

Upstream wide-range sensor delay when enrichment starts

Bank 2 upstream oxygen sensor delayed rich-to-lean response

Bank 2 upstream oxygen sensor delayed lean-to-rich response

Excessive Time to Enter Closed Loop Fuel Timing Control

Excessive Time to Enter Closed Loop Cylinder Balance Control

Rear oxygen-sensor inactivity can involve loading and resistance checks

downstream bank-2 heater performance inferred from resistance

O2 Sensor Circuit Bank 2 Sensor 3

O2 Sensor Circuit Low Voltage Bank 2 Sensor 3

O2 Sensor Circuit High Voltage Bank 2 Sensor 3

O2 Sensor Circuit Slow Response Bank 2 Sensor 3

O2 Sensor Circuit No Activity Detected Bank 2 Sensor 3

Bank 2 sensor 3 heater circuit monitoring is separate from resistance testing

Fuel Temperature Too High

Jeep flex-fuel composition faults and water contamination

Excessive Time To Enter Closed Loop Air/Fuel Ratio Control

Closed Loop Air/Fuel Ratio Control At Limit - System Too Rich

Elantra lean-control limits after very cold starts

Fuel-pressure adaptation times out before a new factor is learned

Closed Loop Fuel Pressure Control At Limit - Pressure Too High

Closed Loop Fuel Pressure Control At Limit - Pressure Too Low

A diesel fuel-trim fault uses a filtered global fueling error

Lean fuel-trim evidence and the importance of purge correction

Rich fuel trim before and after purge is enabled

Bank 2 fuel correction reaches the monitor limit

bank-2 lean result from lambda-controller correction

bank-2 rich result at the lower correction limit

Ford flexible-fuel input falls outside its calibrated range

fuel-quality signal plausibility on VAG systems

Low flex-fuel sensor frequency received through the tank module

High ethanol-sensor frequency and the separate conductivity boundary

Cylinder Head Temperature Sensor A Circuit

engine-metal warm-up falls short of the energy model

the cylinder-head metal-temperature input is electrically low

head-temperature high-circuit interpretation needs source correction

head-temperature signal makes implausible step changes

EVAP System Leak Detection Pump Module Air Filter Restricted

Maxima compares fuel temperature with other thermal inputs

fuel-filter temperature drifts away from its reference

Low digital fuel-temperature data on the first SENT channel

High raw data from fuel-rail temperature sensor 1

fuel-temperature sensor A changes implausibly quickly

the G248 low-input interpretation needs the full fault text

fuel-rail temperature disagrees with manifold temperature

Second fuel-temperature channel low, with a source-label conflict

Second fuel-temperature channel high and the raw-value naming issue

intermittent fuel-temperature feedback from G248

Fuel Pressure Sensor B Circuit

A pressure sensor that stays plausible but fails to respond

Fuel-pressure Sensor B circuit low in two wiring architectures

High fuel-pressure Sensor B output and message validity

Fuel Pressure Sensor B Circuit Intermittent/Erratic

Fuel System Over Pressure Relief Valve Frequent Activation

A fuel pressure sensor can fail while its reading remains in range

Comparing two digital fuel-rail pressure measurements

Low SENT data from fuel-rail pressure sensor 1

fuel-rail pressure signal exceeds its electrical upper limit

intermittent G247 fuel-rail pressure feedback

Engine Oil Temperature Sensor A Circuit

Oil-temperature plausibility depends on the cold-soak reference

oil-temperature sensor A has a low-resistance circuit result

oil-temperature sensor A exceeds the high-resistance boundary

oil-temperature sensor A accumulates excessive signal movement

O2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3

O2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 3

O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 3

O2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 3