P219E — Cylinder #3 Imbalance Error

OBD2 code P219E flags a problem with the sensor and actuator circuits (cylinder #3 imbalance error). The car is usually drivable while you plan the repair. Common culprits: blown fuse feeding the circuit, control module driver fault, faulty sensor or actuator of the affected circuit.

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 P219E 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 cylinder #3 imbalance error 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 P219E does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P219E (parts and labor, USD, independent shop rates): Replace the faulty sensor or actuator: $150–$500; Control module repair: $300–$1,000; Repair wiring or connectors: $80–$250. Overall, fixing P219E 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

Will P219E clear itself?

Sometimes P219E 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.

What are the symptoms of P219E?

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

How do I diagnose P219E myself?

Start with a scan: confirm P219E, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the sensor and actuator circuits, and verify the suspect component against live data before buying parts.

Is it safe to drive with P219E?

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.

What is the most common cause of P219E?

The most common causes are: blown fuse feeding the circuit, control module driver fault, faulty sensor or actuator of the affected circuit.

What does P219E mean?

When P219E appears on a scan, it means the control module has flagged a problem in the sensor and actuator circuits: cylinder #3 imbalance error. The fault sits in the powertrain (engine/transmission) group of the OBD2 standard.

To set P219E, the control module compares live readings of the sensor and actuator circuits against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

Common symptoms of P219E

Check Engine Light on
increased fuel consumption in some cases
possible limp mode depending on the affected component
the affected system operates intermittently or not at all

What causes P219E?

poor ground connection
blown fuse feeding the circuit
control module driver fault
faulty sensor or actuator of the affected circuit

How to diagnose P219E

Connect an OBD2 scanner, confirm P219E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
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.
Visually inspect the wiring harness and connectors related to the cylinder #3 imbalance error for damage, corrosion, chafing or poor contact.
Measure reference voltage, ground and signal continuity at the component connector.
Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P219E does not return.

How to fix P219E

Start with the cheapest and most common causes before replacing expensive parts:

Replace the faulty sensor or actuator — $150–$500
Control module repair — $300–$1,000
Repair wiring or connectors — $80–$250

How much does it cost to fix P219E?

Repair cost depends on which component actually failed. Typical scenarios for P219E (parts and labor, USD, independent shop rates):

Replace the faulty sensor or actuator: $150–$500
Control module repair: $300–$1,000
Repair wiring or connectors: $80–$250

Overall, fixing P219E 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.

Can you drive with P219E?