P0113 Code: Dodge Charger (2021-2023) - Causes, Symptoms & Fixes

Comprehensive diagnostic guide for P0113 on 2021-2023 Dodge Charger

Important data note (data limitations)

• Based on the provided NHTSA data for Dodge Charger (2021-2023): No owner complaints, no recalls found in the NHTSA database. No recalls cited here. This guide uses general automotive knowledge to explain P0113 and how it commonly presents on Dodge Chargers, with practical diagnostic steps and cost estimates for 2025. Actual vehicle behavior can vary by engine option (e.g., V6, V8, or performance variants) and by aftermarket modifications. Always confirm with your own vehicle data and service information.

CODE MEANING AND SEVERITY

• Code: P0113 — Intake Air Temperature Sensor 1 Circuit High Input.
• What it means: The PCM/ECU sees a higher-than-expected voltage (or temperature reading) from the Intake Air Temperature (IAT) sensor, indicating the sensor signal is out of range high. The IAT sensor is typically a 2-wire thermistor that measures the temperature of incoming air; the PCM uses this data to adjust fuel trim and ignition timing.
• How the PCM uses it: IAT data helps determine air density for fuel control. If the sensor reads abnormally hot, the PCM may assume the engine is drawing in hot air and adjust fuel and timing accordingly, often reducing fuel enrichment.
• Severity: Moderate. It can cause poor drivability, reduced fuel economy, and rough idle, especially in cold starts or under load. In many cases, the vehicle will still run, but performance and efficiency suffer. It is not typically a catastrophic failure, but neglect can lead to further drivability issues or misfire codes if the condition persists.

COMMON CAUSES ON DODGE CHARGER

• Faulty IAT sensor: A bad or failing IAT sensor can produce abnormally high readings.
• Wiring/connector problems: Damaged, frayed, corroded, loose, or contaminated IAT wiring harness and connectors (including poor ground or 5V reference wiring) can cause high-input signals.
• Sensor integration or related intake components: If the IAT sensor is integrated with the MAF sensor or mounted in a way that causes a wiring or housing fault, readings can be skewed.
• Vacuum or intake system issues that indirectly influence readings: A mis-seated air intake hose or duct leak can alter actual air temperature readings seen by the sensor, though the primary fault would still be sensor/wiring related for a P0113.
• Aftermarket modifications: Non-OEM intakes, tune adjustments, or re-routed wiring can create conditions that trigger P0113.
• PCM/ECU anomalies: Rare, but a faulty PCM or a software calibration problem can occasionally produce odd sensor readings. (Not common, but possible in some vehicles.)

SYMPTOMS

• MIL (Check Engine Light) illuminated.
• Noticeable reduction in performance or acceleration, especially during cold start or initial throttle.
• Poor or fluctuating idle.
• Decreased fuel economy.
• Occasionally stalling or rough running, especially at idle or low load.
• Engine may feel sluggish or run rich/lean inconsistently if the code is accompanied by other DTCs.

DIAGNOSTIC STEPS

Note: This is a practical, step-by-step approach. Always follow shop safety practices and disconnect the battery before unplugging sensors if you’re removing electrical connectors.

A. Confirm and gather data

• Use a scan tool to confirm P0113 is active and note any freeze-frame data (engine temp, ambient temperature, RPM, throttle position, etc.).
• Check for related codes (P0112, P0111, etc.) which can indicate related IAT/MAF or airflow issues.
• Note recent drivability issues and whether the vehicle has aftermarket intake modifications.

B. Visual inspection

• Inspect the IAT sensor and its connector for corrosion, bent pins, loose fit, and damage.
• Inspect the wiring harness for chafed insulation, heat damage, or pin push-in issues at the sensor and at the PCM/connector.
• Inspect the air intake tubing and air filter housing for cracks, leaks, or loose clamps.
• If equipped, verify that the IAT is properly positioned in the intake path and that there are no aftermarket components causing misalignment.

C. Basic sensor test (IAT sensor resistance test)

• Locate the IAT sensor (usually in the MAF housing or along the air intake tube depending on engine and model).
• With the engine off and the battery disconnected, disconnect the IAT sensor connector.
• Measure resistance of the IAT thermistor between the two sensor terminals at room temperature (20-25°C/68-77°F). Note the value.
• Compare with the vehicle’s service spec. If you don’t have an exact spec, a common rule is that resistance should change with temperature (and should not be wildly out of spec). At room temp, many IAT sensors show a relatively low resistance; as temperature rises, resistance decreases.
• If you have access to an infrared thermometer, check the intake air near the sensor to confirm ambient air temperature aligns with readings; this is a cross-check rather than a final test.

D. Electrical tests on wiring

• With the connector unplugged, visually inspect the pins for corrosion or bent pins; reseat and clean if needed.
• Check for continuity from the IAT sensor connector to the PCM/engine computer harness pin using a multimeter. Look for open circuits, shorts to ground, or shorts to 12V.
• If the IAT sensor is in a shared harness with the MAF, inspect the MAF circuit as well for shared fault conditions.
• Confirm there is no abnormal 5V reference or other abnormal circuit conditions (you may need service information for the exact pinouts).

E. Live data and functional test

• Reconnect the sensor and monitor live data with the engine both at startup (cold/cranked) and after warming up.
• At engine start, IAT readings should track ambient air temperature (roughly equal to outside temperature). If the IAT shows a high value (e.g., well above ambient) immediately at startup or when cold, suspect sensor or circuit issue.
• During idle, compare IAT reading to ambient; a large mismatch indicates signal fault.
• If available, disconnect the MAF sensor to isolate IAT behavior. If the IAT reading behaves normally without MAF influence, the root cause may be the IAT circuit or MAF interaction.

F. Decide on repair path

• If IAT sensor tests poorly (out-of-range resistance, or wiring tests fail), plan replacement or wiring repair.
• If the sensor tests OK and wiring checks out, re-check for intake leaks or aftermarket modifications that could be causing abnormal readings or a second code set. In rare cases, ECU calibration or software updates could be considered by a dealer.

G. Post-repair verification

• Clear codes and perform a road test to ensure P0113 does not return.
• Monitor live data to confirm IAT readings align with ambient conditions and are stable under different loads and temperatures.

RELATED CODES

• P0112: Intake Air Temperature Sensor 1 Circuit Low Input (low voltage/low reading).
• P0111: Intake Air Temperature Sensor 1 Circuit Range/Performance (out-of-range or intermittent).
• P0118: IAT Circuit High Input (some OEMs categorize variations similarly; definitions may vary by year/model, but generally indicate an out-of-range high reading).
  Note: In Dodge Charger discussions, P0113 is commonly paired with P0112 or P0111 as related IAT issues. Always verify with a scan tool for the exact codes on your vehicle.

REPAIR OPTIONS AND COSTS (2025 PRICES)

Prices vary by region, shop, and engine variant. These ranges assume typical Dodge Charger models (2021-2023) and standard labor rates.

• IAT sensor replacement (most common fix)

  • Parts: $15–$60
  • Labor: 0.5–1.0 hour
  • Total typical range: $60–$180 (higher if labor rates or access is difficult)

• MAF sensor replacement (if IAT is integrated or if MAF is implicated)

  • Parts: $60–$350
  • Labor: 1.0–2.0 hours
  • Total typical range: $220–$600

• Air intake hose, duct, or filter-related service

  • Parts: $20–$120
  • Labor: 0.5–1.0 hour (if done with IAT replacement)
  • Total typical range: $50–$200

• Wiring harness repair or connector replacement

  • Parts: $0–$100 (depends on harness repair vs. full harness)
  • Labor: 0.5–2.0 hours
  • Total typical range: $80–$350

• ECU/PCM reprogramming or calibration (rare; only if a software issue is suspected)

  • Parts/Software: $50–$150 (often charged as a diagnostic/monitoring fee in addition to any updates)
  • Labor: 0.5–1.0 hour
  • Total typical range: $100–$350

DIY cost-saving tips:

• If you have a reasonable amount of mechanical skill, replacing the IAT sensor yourself is often cost-effective, given sensor price is low and labor is the main expense.
• Cleaning the MAF sensor (if the IAT is not easily accessible) can help in general MAF-related issues, but it’s not a guaranteed fix for P0113.
• Use OEM or high-quality equivalent sensors; cheaper aftermarket sensors sometimes have inconsistent readings.

DIY vs PROFESSIONAL

• DIY-friendly scenarios:
  • Sensor replacement on accessible engines where the IAT is located on the intake tube or near the MAF housing.
  • Ability to perform basic electrical tests with a multimeter.
  • Comfortable with disconnecting battery and handling sensors safely.
• Professional scenarios:
  • If the IAT sensor is hard to reach or integrated with the MAF, or if wiring harness repair is required.
  • Reprogramming or ECU-related checks; verifying all circuits with a scope or more advanced diagnostic tools.
  • If the same code reappears after a sensor replacement, or if multiple DTCs exist indicating broader issues (e.g., intake leaks, MAF problems, or PCM concerns).

Tips for a successful DIY repair:

• Disconnect the battery before unplugging sensors to avoid short circuits.
• Replace the sensor with the engine off and allow components to cool before touching, especially in hot climates.
• After replacement, clear the codes and test drive, monitoring live data to confirm the fix.
• If the code returns, re-check all connectors and possible secondary causes (e.g., vacuum leaks, MAF issues, or software calibration).

PREVENTION

• Keep the air intake system clean: replace the air filter on schedule and inspect the intake duct and hoses for cracks or leaks.
• Use proper-sized, OEM-quality IAT and MAF components. Avoid low-quality replacements that may give inconsistent signals.
• Inspect electrical connectors and wiring around the IAT/MAF area for corrosion, fraying, or loose pins.
• Avoid aftermarket modifications that relocate or alter the IAT/MAF path without proper calibration.
• Regular maintenance and addressing drivability issues early reduces the risk of sensor-related codes becoming intermittent.

Summary

• P0113 on the 2021-2023 Dodge Charger indicates the IAT sensor circuit is reading abnormally high input. The typical root causes are sensor or wiring problems rather than a complex engine fault. Start with a thorough diagnostic: visual inspection, sensor resistance checks, wiring continuity checks, and live data comparison with ambient temperature. Replacement of the IAT sensor is the most common repair; other causes include MAF-related issues or harness problems. Cost ranges from roughly $60–$600 depending on the exact fault and whether you DIY or go to a shop. No recalls were cited for this issue in the provided data, and there are no NHTSA complaints listed for this specific year/model/code combination.