Powertrain, generic · Fuel and air metering, auxiliary emission controls

P0097 Intake Air Temperature Sensor 2 Circuit Low Bank 1

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Intake air temperature sensor 2 is the second air temperature sensor in the intake path; on many turbocharged engines it sits in the intake manifold, often combined with the manifold pressure sensor, and is used to calculate cylinder filling and ignition timing. For P0097, the sensor signal is below its valid range. With the usual voltage-type NTC sensor this means a short to ground, and the control module reads an extremely high temperature; some manufacturers use sensors with a frequency output, where a low signal instead corresponds to an extremely low temperature (open circuit or short to ground).

Likely causes

Sensor shorted internally or signal wire shorted to ground
Connector damp or corroded
On frequency-output sensors: open circuit
Engine control module faulty

Symptoms

  • Check engine light on
  • Usually no noticeable symptoms
  • Slightly changed power or knock control with an implausible reading

Repair estimate

DifficultyEasyDIY possible
Parts and labour€40–250
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

intake air temperature sensor 2intake air temperature sensor wiringmanifold absolute pressure sensor

Related codes

P0095P0096P0098P0099

References: law.cornell.edu, newtonnet.co.uk, fordservicecontent.com, gsi.ext.gm.com.