P2950 – Intake Air Metering Control Valve Stuck Open

System: Powertrain | Standard: ISO/SAE Controlled | Fault type: General

Definition source: SAE J2012/J2012DA (industry standard)

DTC P2950 indicates the powertrain control module has detected an “intake air metering control valve” condition where the valve is stuck open. In practical terms, the commanded position and the observed/expected airflow or valve feedback do not align in a way the module considers acceptable for normal operation. The exact hardware, actuator style, and monitoring strategy vary by vehicle, so the same code can be set using different inputs (for example, actuator position feedback, airflow modeling, or correlated sensor signals). Use the applicable service information to confirm component location, connector pinout, and the specific enable conditions for the monitor before beginning in-depth testing.

What Does P2950 Mean?

P2950 – Intake Air Metering Control Valve Stuck Open means the control system has determined that the intake air metering control valve is not closing as intended and is remaining in an open position when the module expects it to move closed. Per SAE J2012 DTC conventions, the code identifies a standardized fault entry, while the actual detection method depends on the platform’s strategy. This DTC does not, by itself, prove the valve is mechanically jammed; it indicates the module detected a “stuck open” condition based on the signals and/or airflow behavior it monitors. Confirm the fault using vehicle-specific diagnostics and test results.

Quick Reference

• Subsystem: Intake air metering control valve system (air intake metering/airflow management).
• Common triggers: Commanded valve closure with the valve not responding; feedback indicates open; airflow/pressure behavior inconsistent with a closing valve.
• Likely root-cause buckets: Valve/actuator fault, mechanical binding/contamination, wiring/connector issues to the actuator or position feedback (varies by vehicle), air intake leaks or restrictions affecting plausibility, control module/strategy issues.
• Severity: Usually moderate; may cause reduced performance and poor drivability, and can contribute to stalling in some operating conditions.
• First checks: Verify related intake ducting and connectors are secure; check for obvious binding at the valve; scan for related airflow/throttle/pressure codes and review freeze-frame data.
• Common mistakes: Replacing the valve immediately without confirming command vs response, ignoring harness/connector problems, or overlooking unmetered air leaks that can confuse airflow-based monitoring.

Theory of Operation

The intake air metering control valve is used to manage how much air enters the engine under certain conditions. Depending on vehicle design, it may be integrated with other air-management components and may use an electric actuator, a vacuum actuator with a solenoid, or an electronically controlled assembly. The control module commands the valve toward open or closed and expects a corresponding change in valve position feedback (if equipped) and/or a predictable change in airflow, pressure, or calculated load.

P2950 can set when the module commands the valve to close but the system indicates it remains open. That determination may be based on direct position sensing, on inferred airflow behavior using multiple sensors, or on a combination of both. Because monitoring logic varies by vehicle, confirming the fault typically requires comparing the commanded state to the actual response in live data while ruling out wiring faults and intake system issues that can mimic a stuck-open condition.

Symptoms

• Check engine light: The malfunction indicator lamp may illuminate and P2950 will store as a confirmed or pending fault.
• Rough idle: Idle quality may degrade if airflow control is not matching the module’s expectations.
• Hesitation: Tip-in response can feel delayed or uneven, especially during transitions where the valve is expected to change position.
• Reduced power: The vehicle may enter a torque-limited or protective strategy to prevent unstable airflow control.
• Stalling tendency: In some conditions, incorrect metering can contribute to stumble or stall, particularly during deceleration to idle.
• Poor fuel economy: Fueling corrections may increase if airflow modeling is disrupted.
• Hard starting: Starting may take longer if air control is not in the expected state for start-up strategy.

Common Causes

• Intake air metering control valve mechanically binding/sticking in the open position (carbon/oil deposits, damaged shaft/gear, internal wear)
• Air metering valve actuator motor/solenoid fault that prevents commanded movement toward closed (internal electrical failure or weak actuator)
• Wiring harness damage to the valve/actuator circuit (chafing, broken conductors, corrosion intrusion)
• Poor connector condition at the valve or control module (loose terminals, backed-out pins, contamination, poor pin fit)
• Power or ground delivery problem affecting the actuator’s ability to move under load (high resistance, shared ground issues)
• Control module driver issue or logic fault (less common; confirm all external causes first)
• Mechanical interference in the air path preventing the valve from returning (misalignment, foreign material, damaged linkage; varies by vehicle)
• Incorrectly installed or incompatible air ducting/components causing the valve to hang open or be mispositioned (varies by vehicle configuration)

Diagnosis Steps

Tools typically needed include a scan tool capable of viewing live data and running bidirectional actuator tests (if supported), a digital multimeter, and basic hand tools for access and visual inspection. A backprobe kit and wiring diagram/service information are strongly recommended. For intermittent concerns, use a scan tool logging function and perform harness movement checks while monitoring valve command/feedback behavior.

1. Confirm the code and context. Scan all modules, record stored and pending DTCs, and save freeze-frame data. If other air/engine management codes are present, address them in an order that matches service information since they can affect airflow calculations.
2. Clear and recheck. Clear DTCs and perform a short road test or run the monitor conditions (varies by vehicle). If P2950 resets quickly, the fault is likely hard (stuck valve, wiring fault, or actuator failure).
3. Visual inspection of the air metering valve area. With the engine off and key off, inspect the intake tract and valve housing for obvious binding, damaged components, loose fasteners, misaligned ducting, or signs of contamination. Do not force the mechanism; note any restricted or gritty movement if access allows.
4. Connector and harness inspection (most common starting point). Inspect the valve/actuator connector and the harness routing. Look for corrosion, moisture, oil saturation, pin damage, poor terminal tension, and chafing points. Correct any connector issues before deeper testing.
5. Wiggle test with live data logging. Start the engine (or key on if tests are KOEO) and log relevant scan tool parameters (valve command, valve position/feedback if available, airflow-related PIDs). Gently wiggle the connector and harness in sections. If values spike, drop out, or the fault sets, isolate the harness segment and repair.
6. Run a bidirectional actuator test (if supported). Command the intake air metering control valve through multiple positions while monitoring any available feedback PID(s) and engine response. A valve “stuck open” condition may show commanded movement without corresponding feedback change, or a lack of response in airflow/idle behavior (varies by vehicle strategy).
7. Check power and ground integrity under load. Using the wiring diagram, verify the actuator’s power feed and ground. Perform voltage-drop testing on the power and ground paths while commanding the valve (or during an active test) to reveal high-resistance issues that may not appear with a simple static check. Compare results to service information guidance.
8. Check control/command circuit behavior. With the connector properly accessed (backprobe when possible), verify the control signal presence and stability while commanding the valve. If the command is present but movement does not occur, suspect the actuator/valve assembly or mechanical binding; if the command is erratic or absent, continue circuit checks back toward the control module.
9. Continuity and short checks (key off, circuit isolated as required). If service information allows, isolate the circuit and test for opens and shorts between the valve connector and the module connector. Pay special attention to areas of prior repairs, bends, and heat exposure. Repair any opens, shorts, or high-resistance connections found.
10. Mechanical verification of sticking. If electrical checks are normal, verify whether the valve is physically stuck open. This may require removal for inspection/cleaning (procedure varies by vehicle). Inspect for deposits, binding, damaged gears/linkages, or interference that would prevent closing. Reassemble using correct procedures to avoid introducing new misalignment.
11. Final verification. After repairs, clear codes, run the actuator test again (if available), then complete a road test/drive cycle to confirm the monitor runs and P2950 does not return. Recheck for pending codes and confirm consistent valve response in live data logs.

Professional tip: If the valve appears “stuck open” only at certain times, treat it as potentially intermittent. Capture a live-data log that includes valve command, any available position feedback, and airflow-related PIDs while reproducing the complaint. Correlating command versus response during the exact moment the fault sets helps you avoid replacing the valve when the real issue is a momentary power/ground drop or connector terminal tension problem.

Possible Fixes & Repair Costs

Repair costs for P2950 vary widely because the fault can come from the intake air metering control valve itself, its mechanical linkage, wiring/connectors, or a control issue. Parts access, required calibrations, and diagnostic time also strongly influence the total.

• Clean or service the intake air metering control valve and surrounding air path if verified contamination or sticking is present (follow service information procedures)
• Repair wiring damage in the valve control circuit (chafing, pinched harness, poor routing) found during inspection and testing
• Repair connector issues at the valve and control module (corrosion, backed-out terminals, poor pin fit) and restore proper terminal tension
• Correct power supply or ground integrity problems affecting the actuator (including voltage-drop related issues) once confirmed by testing
• Repair vacuum/air plumbing or linkage issues (varies by vehicle) that prevent the valve from returning to its commanded position
• Replace the intake air metering control valve/actuator assembly only after tests confirm it is mechanically stuck open or fails commanded movement
• Perform required relearn/adaptation or calibration steps after repairs if specified by service information

Can I Still Drive With P2950?

You may be able to drive cautiously if the engine runs smoothly and there are no warnings related to reduced power, unstable idle, stalling, or abnormal braking/steering behavior. However, because this fault involves an intake air metering control valve that may be stuck open, driveability can degrade quickly and fuel/air control may be compromised. If the vehicle enters a reduced-power mode, stalls, has a hard start/no-start, or exhibits severe hesitation/surging, do not continue driving; have it diagnosed promptly to avoid unsafe conditions and secondary issues.

What Happens If You Ignore P2950?

Ignoring P2950 can lead to ongoing rough idle, hesitation, reduced power, and inconsistent throttle response, especially under changing load. Over time, incorrect air management can contribute to poor fuel economy, increased emissions, and carbon buildup in the intake path. Continued operation with a valve that does not move as commanded may also trigger additional powertrain DTCs, increase diagnostic complexity, and extend repair time if wiring damage or connector problems worsen from heat and vibration.

Related Valve Intake Codes

Compare nearby valve intake trouble codes with similar definitions, fault patterns, and diagnostic paths.

• P2951 – Intake Air Metering Control Valve Stuck Closed
• P2949 – Intake Air Metering Control Valve Performance
• P2913 – Air Flow Control Valve Stuck Open
• P2953 – Intake Air Metering Control Valve Control Circuit/Open
• P2946 – Intake Air Metering Control Valve Circuit/Open
• P2914 – Air Flow Control Valve Stuck Closed

Key Takeaways

• P2950 indicates the intake air metering control valve is detected as stuck open based on the control module’s monitoring logic.
• The code does not prove the valve is bad; confirm with inspection, commanded actuation checks, and circuit testing.
• Wiring, connectors, power/ground integrity, and mechanical sticking/contamination are common root-cause areas.
• Driveability impacts can range from mild to severe; reduced power, stalling, or no-start warrants stopping and diagnosing.
• Proper repair may require cleaning/servicing, circuit repairs, component replacement, and a post-repair relearn (varies by vehicle).

Vehicles Commonly Affected by P2950

• Vehicles equipped with an electronically controlled intake air metering control valve used for airflow management
• Turbocharged and supercharged applications that use intake air control strategies to manage boost and airflow transitions
• Direct-injection gasoline engines with additional intake airflow control hardware (varies by vehicle)
• Diesel engines that use an intake throttle/air metering valve for emissions and drivability functions (varies by vehicle)
• Higher-mileage vehicles where intake contamination and deposits are more likely to affect moving air-control components
• Vehicles operated in dusty environments or with compromised air filtration that can accelerate intake deposits
• Vehicles with prior intake service where connectors, hoses, or harness routing may have been disturbed
• Vehicles frequently used for short trips where condensation and deposit formation can be more pronounced

FAQ

Does P2950 mean the intake air metering control valve is definitely stuck open?

No. P2950 means the control module detected a condition consistent with the intake air metering control valve being stuck open, based on its monitoring strategy. You still need to confirm the root cause with inspections and tests because wiring, connector, power/ground, or mechanical issues can create the same result.

What is the most common first thing to check for P2950?

Start with a visual inspection of the intake air metering control valve area: connector security, terminal condition, harness routing/chafing, and any signs of contamination or binding that could hold the valve open. Then verify commanded movement using a scan tool while observing related live data (varies by vehicle).

Can a wiring problem set P2950 even if the valve is mechanically fine?

Yes. If the actuator cannot be controlled correctly due to poor connections, damaged wiring, or power/ground integrity issues, the valve may not respond as commanded and the module can interpret the result as “stuck open.” Confirm with circuit checks and voltage-drop testing under load.

Will cleaning the intake air metering control valve fix P2950?

Cleaning can help if testing confirms the valve is sticking due to deposits and the electrical control and feedback (if equipped) are functioning correctly. Cleaning is not a guaranteed fix; if the actuator is weak, the mechanism is damaged, or the circuit is faulty, the code can return.

Do I need to do a relearn or calibration after repairs?

It depends on the vehicle. Some platforms require an adaptation/relearn procedure after servicing or replacing the intake air metering control valve to ensure correct positioning and control. Always verify the required post-repair steps in the applicable service information.

If P2950 returns after repairs, re-check for intermittent harness faults with a wiggle test and review live-data logs to confirm whether the valve is truly staying open or if the issue is control/circuit-related.