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P2195GMCGMC Canyon HubAll GMC P2195High Severity

P2195 on GMC Canyon

O2 Sensor Signal Biased / Stuck Lean (Bank 1 Sensor 1)

Factory diagnostic protocol and troubleshooting wire for fault code P2195 specifically for the GMC Canyon (2021–2026, 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X)).

Verified OEM Telemetry & Field Repair Tree
GMC Canyon2021–2026
GMC Canyon
Truck2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Canyon SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
High urgency level
Est. Repair Cost
$150 - $450 (DIY: $60 - $180)
Parts & Labor DIY
Check P2195 On Another GMC Model:
Diagnose P2195 on Specific Canyon Model Year:

1. Symptoms of P2195 on GMC Canyon

When the Engine Control Module (ECM/PCM) on your GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X)) logs fault code P2195, drivers commonly observe:

Check Engine Light on on GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X))
Drop in fuel economy (15–20% MPG loss) on GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X))
Slight engine hesitation or black soot on exhaust tip on GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X))
Failed emissions test on GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X))
GMC Canyon OBD-II Port Location
The 16-pin diagnostic connector is located Lower driver side dash trim panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on GMC Canyon

Historical warranty claims and technical repair bulletins for GMC Canyon point to the following failure distribution:

55%
Contaminated or failing upstream Air-Fuel Ratio (AFR) / O2 sensor (GMC OEM Part)
25%
Exhaust manifold crack or gasket leak before the sensor (GMC OEM Part)
12%
Severe intake air leak or unmetered air downstream of MAF (GMC OEM Part)
8%
Low fuel pressure or clogged fuel injector (GMC OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for GMC Canyon.

3. Step-by-Step DIY Repair Guide for GMC Canyon

01
Inspect Bank 1 Exhaust Manifold for Cracks

Check exhaust manifold near Bank 1 Sensor 1 for cracks or blown gaskets sucking in fresh air. on the GMC Canyon equipped with 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X).

Required Tool: Flashlight, Mirror
02
Monitor Air-Fuel Sensor Current / Voltage

Check B1S1 AFR sensor output. On Toyota/Lexus, 3.3V is stoichiometric; a sensor stuck at 4.0V+ indicates lean bias. on the GMC Canyon equipped with 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X).

Required Tool: OBD-II Scanner
03
Introduce Propane/Carb Cleaner to Test Response

Briefly spray unlit propane into intake. If sensor voltage does not quickly drop rich, the sensor element is poisoned. on the GMC Canyon equipped with 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X).

Required Tool: Propane Torch Valve or Carb Cleaner
04
Replace Upstream Air-Fuel Ratio Sensor

Install a new genuine OEM Denso / Bosch upstream A/F sensor. on the GMC Canyon equipped with 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X).

Required Tool: 22mm O2 Sensor Socket, Ratchet
05
Clear Trouble Codes & Reset Fuel Trims

Clear DTCs, reset ECU learned trims, and road test. on the GMC Canyon equipped with 2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing GMC Canyon (P2195)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

GMC Canyon OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for GMC Canyon.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for GMC CanyonVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on GMC Canyon

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the GMC Canyon:

4. GMC Canyon P2195 FAQs

What causes code P2195 to trigger on a GMC Canyon?

On the GMC Canyon (2.7L Turbo 4-Cyl (310HP) / 3.6L V6 (308HP AT4X)), P2195 is most frequently caused by Contaminated or failing upstream Air-Fuel Ratio (AFR) / O2 sensor or Exhaust manifold crack or gasket leak before the sensor.

Where is the OBD-II port located on my GMC Canyon?

On the GMC Canyon, the 16-pin DLC diagnostic connector is located Lower driver side dash trim panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my GMC Canyon with code P2195?

Caution. ECU may over-enrich fuel mixture trying to compensate for a falsely reported lean signal. Given that P2195 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.