P219A on 2022-2025 Nissan Rogue — Bank 1 Air/Fuel Ratio Imbalance
1 vehicles · 1 makes · $200-$1,200 repair
Most Reported On
P219A is an OBD-II diagnostic trouble code meaning “Bank 1 Air/Fuel Ratio Imbalance.” This code means the engine computer detected an air/fuel ratio imbalance among the cylinders on Bank 1, the bank containing cylinder #1. The computer compares oxygen sensor data with small variations in crankshaft speed to detect when individual cylinders are running noticeably richer or leaner than the others. An imbalance points to one or more cylinders not receiving the correct fuel or air. It can cause rough running, hesitation, and increased emissions, and over time may lead to a misfire if left unaddressed. This code is most commonly reported on 2022-2025 Nissan Rogue, with repair costs ranging from $200 to $1,200.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P219A, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P219A mean?
P219A stands for "Bank 1 Air/Fuel Ratio Imbalance." This code means the engine computer detected an air/fuel ratio imbalance among the cylinders on Bank 1, the bank containing cylinder #1. The computer compares oxygen sensor data with small variations in crankshaft speed to detect when individual cylinders are running noticeably richer or leaner than the others. An imbalance points to one or more cylinders not receiving the correct fuel or air. It can cause rough running, hesitation, and increased emissions, and over time may lead to a misfire if left unaddressed.
What are the most common causes of P219A?
The most common causes of P219A are: Dirty or leaking fuel injector on one cylinder, Vacuum leak affecting specific cylinders, Faulty air/fuel ratio or oxygen sensor, Low or uneven fuel pressure, Intake manifold gasket leak, Carbon-fouled or weak spark on a cylinder, Uneven compression among cylinders. The specific cause varies by vehicle.
How much does it cost to fix P219A?
Repair costs for P219A range from $200 to $1,200, depending on the vehicle and root cause.
Which vehicles are affected by P219A?
Au7o has documented P219A across 1 vehicle models from 1 manufacturers: Nissan.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.