Fuel and air

P0095 — Intake Air Temperature Sensor 2 Circuit Malfunction (Bank 1)

Severity: low Safe to drive

What P0095 means

The engine control module has detected an electrical problem in the circuit of intake air temperature (IAT) sensor 2 on bank 1. The sensor changes its resistance as the air warms or cools, and the module uses that signal to adjust fueling and ignition timing. When the signal is out of range, the module loses reliable air temperature data.

Symptoms

  • Check Engine Light on
  • Rough idle or hesitation
  • Poor fuel economy
  • Reduced engine power
  • Hard starting, especially when cold

Possible causes

  1. Failed intake air temperature sensor 2
  2. Damaged or corroded wiring or connector terminals in the sensor circuit
  3. Poor connection at the sensor plug or ground
  4. Open circuit or short to ground or power in the harness
  5. Rarely, a faulty engine control module

How to diagnose

  1. Read the codes and freeze frame data, note them, then clear the code to see if it returns
  2. Inspect the sensor connector and harness for corrosion, chafing and damaged insulation
  3. With a scan tool, compare the IAT 2 reading with ambient temperature on a cold engine
  4. Unplug the sensor and check for reference voltage and a good ground using the wiring diagram
  5. Measure the sensor resistance and compare it with the manufacturer's spec at a known temperature
  6. Test the wires between the sensor and the module for opens and shorts
  7. Only if the wiring and sensor are good, consider testing the module

Common fixes

  • Replace intake air temperature sensor 2
  • Repair or replace the damaged wiring or connector
  • Clean the terminals and secure the connector, using dielectric grease where appropriate
  • Reprogram or replace the engine control module if it is confirmed faulty

P0095 on different brands

Ford · manuals
Ford may report the extended form P0095:16, meaning IAT sensor 2 circuit low (bank 1) with voltage below the threshold; it identifies the monitor condition detected, not a confirmed failed part.

Questions and answers

Can I drive with code P0095?

Usually yes, as long as the engine runs smoothly and starts normally. Fuel economy and performance may suffer, so don't put off the check.

What most often causes P0095?

Most often it's the air temperature sensor itself, or a corroded connector or damaged wire. A bad engine control module is rare.

Can I just clear P0095?

You can, but if the cause is still there the code will return. Check the sensor, connector and wiring first.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.