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

P00E9 Intake Air Temperature Sensor 3 Circuit Range/Performance Bank 1

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Intake air temperature sensor 3 is a third air temperature sensor in the intake path. On documented turbocharged engines with a humidity sensor it is the manifold temperature sensor behind the charge air cooler, an NTC thermistor read directly by the engine control module and used for cylinder filling and ignition timing. The numbering of intake air temperature sensors differs between manufacturers. P00E9: This is a plausibility check once per ignition cycle after a long standstill (eight hours in a documented case): if the other intake temperature sensors agree and this sensor deviates, or no two agree and this one deviates most, the code is set.

Likely causes

Sensor drifting or stuck
Contact resistance at the connector
A reference sensor reading wrong
Sensor mounted wrongly or exposed to external heat

Symptoms

  • Check engine light on
  • Usually no noticeable symptoms; substitute value used
  • Slightly reduced power through knock protection possible

Repair estimate

DifficultyEasyDIY possible
Parts and labour€60–300
Time0.3–2 h

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

Parts involved

intake air temperature sensor 3intake air temperature sensor wiring

Related codes

P00E8P00EAP00EBP00ECP00EEP00CE

References: law.cornell.edu, gsi.ext.gm.com, gsi.ext.gm.com.