When your 2016 Honda HR-V triggers a P0113 code along with poor acceleration from stops, the engine management system is receiving incorrect data about intake air temperature. This information directly affects fuel mixture calculations, potentially causing the hesitation and sluggish response you're experiencing during acceleration.
What P0113 Means
P0113 specifically indicates that the Intake Air Temperature (IAT) sensor is reporting a voltage signal higher than expected—this translates to an unrealistically low temperature reading (often below -40°F). The PCM uses IAT data along with Mass Air Flow information to calculate proper fuel delivery. When the IAT signal is out of range, the PCM may use default values that don't match actual conditions, causing poor performance.
How IAT Affects Acceleration
Air density changes with temperature—cold air is denser and contains more oxygen per unit volume than warm air. The engine requires more fuel with cold air for proper combustion. If the IAT sensor falsely reports extremely cold air, the PCM may over-enrich the fuel mixture, causing sluggish acceleration and potentially fouled spark plugs. Conversely, some vehicles respond by entering a protective mode with reduced power output.
IAT Sensor Location and Testing
On the 2016 HR-V's 1.8-liter engine, the IAT sensor is integrated into the Mass Air Flow (MAF) sensor assembly located in the intake duct between the air filter box and throttle body. This combined unit measures both air flow rate and temperature. To test, access the sensor connector and measure resistance between the appropriate terminals—resistance should change predictably with temperature changes (typically 2,000-3,000 ohms at room temperature).
Common Causes
A failed IAT sensor is the most direct cause, but wiring issues are equally common. Inspect the connector for corrosion, bent pins, or moisture intrusion. Check the wiring harness for damage, particularly where it routes near hot engine components. A poor ground connection can also cause erratic readings. In some cases, an aftermarket air intake system may position the sensor incorrectly or expose it to heat sources.
Repair and Costs
Since the IAT is integrated into the MAF sensor on the HR-V, replacement involves the entire unit. OEM MAF/IAT assemblies cost $120-$180, with labor adding another $50-$100 for the straightforward replacement. Aftermarket options are available for $50-$80. If the problem is wiring-related, a harness repair may resolve the issue for less. After replacement, clear the code and test drive—proper IAT readings should restore normal acceleration response immediately.