P0095
Intake Air Temperature Sensor 2 Circuit
Powertrain Fuel and Air Metering Intake Air Temperature 🟡 Moderate — Fix within a week
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What This Actually Means
In plain language — no jargon

Your engine has a second intake air temperature sensor that's sending a bad signal to the computer, like a thermometer giving wildly incorrect readings. The ECU can't trust the data and triggers this fault code.

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Symptoms You May Notice
3 known symptoms for this code
Check Engine Light illuminated
Poor fuel economy or rough idle
Engine may run rich or lean
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ECU monitors voltage from the intake air temperature sensor 2 (typically located in the intake manifold or air intake tube). It expects a voltage signal that correlates to air temperature, usually between 0.2V–4.8V corresponding to -40°C to 125°C. If the signal is out of range, stuck, or shows an implausible rate of change, the code sets.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Sensor Voltage 0.2V–4.8V (varies with temp) <0.1V or >4.9V (open/short circuit)
Temperature Range -40°C to 125°C Implausible value or no change
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Intake Air Temperature Sensor 2
Locate sensor in intake manifold or air duct, unplug connector, unscrew and replace with OEM part, then clear code.
2
Sensor wiring harness and connector
Inspect wires for corrosion, breaks, or loose pins; clean or reseat connector and test for continuity.
3
Engine Control Module (ECM) software update
Check manufacturer for available calibration updates that may address sensor reading issues.