P2019 — Intake Manifold Runner Position Sensor/Switch Circuit Bank 2

OBD2 code P2019 flags a problem with the sensor and actuator circuits (intake manifold runner position sensor/switch circuit bank 2). The car is usually drivable while you plan the repair. Common culprits: open or shorted wiring in the circuit, corroded, loose or damaged connector, poor ground connection.

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P2019 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the intake manifold runner position sensor/switch circuit bank 2 for damage, corrosion, chafing or poor contact.
Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2019 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2019 (parts and labor, USD, independent shop rates): Control module repair: $300–$1,000; Repair wiring or connectors: $80–$250; Replace the faulty sensor or actuator: $150–$500. Overall, fixing P2019 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Is it safe to drive with P2019?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How much does it cost to fix P2019?

Control module repair — $300–$1,000; Repair wiring or connectors — $80–$250; Replace the faulty sensor or actuator — $150–$500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What are the symptoms of P2019?

Drivers most often notice: possible limp mode depending on the affected component, increased fuel consumption in some cases, the affected system operates intermittently or not at all, Check Engine Light on.

What is the most common cause of P2019?

The most common causes are: open or shorted wiring in the circuit, corroded, loose or damaged connector, poor ground connection.

Will P2019 clear itself?

Sometimes P2019 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

Your engine's intake manifold does more than just channel air into the cylinders. Many modern engines use a system of movable flaps or valves inside the manifold to direct airflow depending on RPM and load demands. The position sensor mounted on this assembly tells your engine control unit exactly where those flaps sit at any given moment. Code P2019 means the powertrain computer has detected a problem with the signal circuit for that sensor or switch on the second bank of cylinders—the side opposite cylinder number one. The computer does not flag this fault after a single bad reading; it waits until the same abnormal condition shows up repeatedly under specific driving circumstances before activating the check engine light.

When the sensor or its circuit fails, the engine loses real-time information about how the intake runners are positioned. Without that data, the control module cannot fine-tune the air-fuel mixture or optimize valve timing for different driving conditions. The stored freeze frame—essentially a snapshot of engine temperature, load, speed, and RPM at the moment the fault occurred—gives you a precise starting point for your diagnosis. Reproduce those exact conditions during testing and you will catch the problem much faster than guessing.

Symptoms of P2019

The check engine light illuminates on the dashboard.
The engine may enter limp-home mode, limiting power to protect itself.
Fuel economy drops noticeably compared to normal driving.
The intake system operates erratically or stops responding to driver commands.
Acceleration feels sluggish or inconsistent, especially under higher loads.
The affected bank may experience rough idling or minor stuttering.

Common Causes

A corroded, loose, or physically damaged electrical connector at the sensor or control module.
An open or short somewhere in the wiring harness feeding the Bank 2 runner position circuit.
A burned-out fuse that supplies voltage to the sensor circuit.
A weak or interrupted ground connection at the sensor or ECU.
Internal failure of the intake manifold runner position sensor or its actuator motor.
A faulty driver circuit inside the engine control module itself, though this ranks lower on the probability scale.

How to Diagnose P2019

Plug in a scan tool, retrieve code P2019 from the powertrain memory, and record all freeze frame data—this snapshot reveals the exact conditions present when the failure triggered.
Scan for any additional trouble codes that may point to a related problem, and look up factory technical service bulletins for your specific make and model using your VIN at the manufacturer or NHTSA website.
Perform a thorough visual inspection of the wiring and connectors tied to the Bank 2 intake runner position circuit, watching for broken insulation, corrosion buildup, or pins that have backed out of their housings.
Check reference voltage, ground integrity, and signal continuity at the component plug using a multimeter or oscilloscope.
Gently manipulate the wiring harness while monitoring live data on the scan tool—any signal dropout points to a broken or chafed wire.
Clear the code, complete a drive cycle that reproduces the freeze frame conditions (same load, RPM, temperature, and speed), and verify that P2019 does not reappear.

Repair Options and Costs

Depending on which component is actually at fault, you have three realistic repair paths. If the wiring or connectors show obvious damage, you can often solder or splice the affected circuits for roughly eighty to two hundred and fifty dollars in parts and labor. Replacing a failed intake manifold runner position sensor or its actuator motor typically runs one hundred and fifty to five hundred dollars depending on the vehicle and parts sourcing. In the rare event the engine control module itself has an internal driver failure, module repair or replacement costs between three hundred and one thousand dollars.

Total Cost to Fix P2019

Across all realistic repair scenarios, expect to spend anywhere from eighty to one thousand dollars total. The wide range reflects how dramatically the price swings depending on whether you need a simple wiring fix or a full control module replacement. Always confirm the exact source of the fault before purchasing parts—throwing an expensive sensor at a corroded connector wastes both time and money.

Can You Drive with P2019?

Most vehicles remain operational with this code stored, though you may notice reduced throttle response, lower power output, or poorer fuel economy. If the car stalls repeatedly, refuses to start, or triggers brake and steering warnings alongside the check engine light, treat the situation as urgent and have it towed rather than risking further damage on the road.