The P2017: Intake Manifold Runner Position Sensor/Switch Circuit High code indicates a problem with the intake manifold runner position sensor or switch, specifically signaling a circuit high. This sensor plays a crucial role in managing the engine’s air intake for optimal performance. A high circuit signal suggests an issue that could hamper engine efficiency.
P2017 quick overview
| Meaning | P2017: Intake Manifold Runner Position Sensor/Switch Circuit High |
| Is it serious? | This code can be serious as it may affect the engine’s performance and fuel efficiency. |
| Possible causes | – Faulty intake manifold runner position sensor/switch – Damaged or disconnected wiring to the sensor – Obstruction or carbon buildup in the intake manifold – Malfunctioning control actuator for intake manifold runner |
| How to diagnose? | Inspect Intake Manifold: Look for obstructions or carbon buildup. Check Sensor and Wiring: Examine the sensor and its connections for damage. Test Sensor Operation: Evaluate the intake manifold runner position sensor’s functioning. Consider TSBs: Review any Technical Service Bulletins for known issues. |
P2017 Meaning
This code means your car’s computer found an issue with a part that helps control how much air goes into the engine. This part, called the intake manifold runner, needs to move freely and its sensor should work properly to ensure your engine runs smoothly and doesn’t waste fuel. Fixing this involves checking the part for blockages, making sure its sensor is okay, and sometimes, updating the car’s computer based on manufacturer recommendations.
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How to fix P2017 – learn from mechanics
I looked into P2017 service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.
Case #1: Jeep
Vehicle Information:
2008 Jeep Compass Limited 2.4L
Issue + Repair History:
- MIL on with codes P2017 and P0172 (rich), later P0171 (lean).
- Checked basics, cleared codes, but P2017 reappeared.
Other OBD2 Codes + Test Results:
Suggestions to Fix Issue:
- Replace intake and actuator.
- Check the valve operation and position sensor on the actuator.
- Investigate possible issues with sensor ground circuit affecting O2 sensors.
Final Fix:
The technician ordered a new intake and actuator from Jeep, anticipating this would resolve the lean/rich codes after the intake swap.
Case #2: Mercedes
Vehicle Information:
2001 Mercedes-Benz C320 3.2L
Issue + Repair History:
- Vehicle arrived running poorly with check engine light and codes P2017 and P2086.
- Air box to mass meter was warped and sucking air, replaced.
- Vehicle running on non-standard spark plugs, replaced.
- After repairs, the vehicle idled fine but misfired under load. P20d4 code present without MIL light.
Other OBD2 Codes + Test Results:
- P20d4: Load Limit Stored (no light)
Suggestions to Fix Issue:
- Check for a vacuum leak under the intake.
- Inspect the air flow meter’s output signal.
- Conduct a back pressure check on the catalytic converters.
Final Fix:
Intake removal planned to investigate and repair an identified leak under the intake.
Case #3: Volkswagen
Vehicle Information:
2009 Volkswagen Tiguan SE 2.0L
Issue + Repair History:
- Vehicle arrived with MIL on and codes indicating sensor ground issues.
- Found no ground on the brown wire from ECM, but 5V reference was present.
- Vehicle previously had crankcase regulating valve replaced due to vacuum and misfire issues.
Other OBD2 Codes + Test Results:
- P0190: Fuel pressure sensor
- P0238: Manifold/boost sensor
- P2017: Intake flap position sensor
- P2138: Accelerator pedal position
Suggestions to Fix Issue:
- Check ECM for bad ground.
- Inspect wiring harness, especially near intake manifold.
- Consider issues with DBW (Drive-By-Wire) throttle body systems.
Final Fix:
- Repaired computer resolved fuel pressure and boost sensor ground issues.
- Replaced intake manifold for broken shaft.
- Installed a new gas pedal assembly for P2138 code.
This case illustrates the diagnostic process and resolution for a 2009 Volkswagen Tiguan with multiple sensor issues, ultimately resolved by repairing the computer and replacing key components.
Case #4: Chrysler
Vehicle Information:
2007 Chrysler Sebring 2.4L
Issue + Repair History:
- Check Engine Light on with code P2004.
- Previous repairs unrelated (front and rear brakes).
Other OBD2 Codes + Test Results:
- P2004: Intake Runner Control Stuck Open
Suggestions to Fix Issue:
- TSB suggests replacing PCM and Intake Runner Control.
- Check for poor design or carbon buildup affecting the intake runner.
- Manually move the intake runner to check if it’s stuck.
Final Fix:
- The Intake Runner Control was replaced, resolving the issue.
Case #5: Dodge
Vehicle Information:
2005 Dodge Sprinter 3500 2.7L
Issue + Repair History:
- Vehicle towed for stalling while driving, would not restart.
- Initially found codes P2091, P2511, P2500, P2017.
- Replaced fuel filter, cleared codes, but vehicle still stalled under load.
Other OBD2 Codes + Test Results:
- P2047: Fuel pressure malfunction, exceeds maximum limit
- P2051: Fuel pressure malfunction, same description
Suggestions to Fix Issue:
- Suspected fuel pressure solenoid issue.
- Check wiring harness for damage or issues.
- Consider replacing the fuel quantity solenoid.
Final Fix:
- Replaced the fuel pressure regulator, resolving the stalling issue.
- Found a cheaper alternative for the regulator from Bosch (Bosch #0281002682) instead of buying the entire fuel rail.
How to diagnose P2017
I made you an overview of solving this DTC, based on all the advice that was suggested by certified mechanics to address this issue in previously mentioned service cases.
| Advice | Diagnostic Step Description |
|---|---|
| Inspect Intake Manifold | Check for issues like warping or carbon buildup. |
| Check Sensor Operation | Ensure the proper functioning of related sensors. |
| Review TSBs | Consult Technical Service Bulletins for known issues and fixes. |
| Verify Wiring and Connections | Examine wiring to sensors and actuators for damage or corrosion. |
| Consider Actuator Replacement | Replace faulty intake manifold actuators as needed. |
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko