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

P00A8 Intake Air Temperature Sensor 2 Circuit High Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Intake air temperature sensor 2 for bank 2 is the second air temperature sensor in the intake path of the second cylinder bank, for example in the intake manifold behind the charge air cooler on engines with two intake paths. For P00A8, the sensor signal is above its valid range. With the usual voltage-type NTC sensor this means an open circuit or a short to the reference voltage, and the control module reads an extremely low temperature; with sensors that have a frequency output, a high signal corresponds to an extremely high temperature. No manufacturer description naming this exact code was found. Bank 2 codes occur only on engines with two separate intake or charge-air paths, one per cylinder bank.

Likely causes

Connector loose or corroded, or wire interrupted
Sensor open internally
Sensor ground interrupted
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 2 bank2intake air temperature sensor wiring

Related codes

P00A5P00A6P00A7P00A9P0098

References: law.cornell.edu, newtonnet.co.uk, en.wikipedia.org.