Fitment Information
- Toyota Tundra 3rd Gen, USDM automatic non-hybrid 3.4L twin-turbo V6 (2022, 2023, 2024, 2025, 2026)
Fitment Note
This COBB Accessport is for non-hybrid Toyota Tundra models only. It does not support the Tundra i-FORCE MAX hybrid. The AP3-TOY-003 can flash both the engine control unit and transmission control module on supported trucks.
⚠️ Important Software Warning: Installation of this Accessport over anything other than OEM or COBB software may result in ECU/TCU failure. Contact COBB Support before installation if your Tundra has previously been tuned with another calibration or tuning device.
Specs and Features
-
Accessport Details
- COBB Accessport V3 handheld tuner
- Manufacturer part number: AP3-TOY-003
- ECU and TCM flashing capability for supported non-hybrid Tundras
- Includes a Gateway Bypass Harness
- In-vehicle mount with on/off switch
-
ECU Map Options
- Stage 0
- Stage 1 maps for 87, 91, and 93 octane fuel
- Stores up to 100 calibrations
- Compatible with Accesstuner custom tuning software, sold separately
-
TCM Map Options
- Simulated Stock
- COBB OEM+
- COBB Sport
- TCM maps adjust shift behavior, shift points, torque limits, and throttle response
-
Monitoring and Logging
- Full-color high-resolution display
- Monitor up to six live parameters at once
- Data logging with up to 10 hours of storage
- Read and clear diagnostic trouble codes
- Performance-measurement and shift-light functions
-
Emissions
- 50-state legal when used according to the manufacturer's application guide
- CARB EO: D-660-277
- CARB EO: D-660-326
Product Description
The COBB Accessport V3 gives your 2022-2026 non-hybrid Toyota Tundra a straightforward way to flash ECU and TCM calibrations, monitor live data, and log how the 3.4L twin-turbo V6 is running. It plugs into the truck's OBD-II system and includes the Gateway Bypass Harness needed for initial installation and certain recovery situations.
COBB includes Stage 1 ECU maps for 87, 91, and 93 octane fuel, along with three TCM map options. The TCM tunes can change shift points, shift firmness, skip-shift behavior, throttle response, and torque limits. The Accessport can also be used as an in-cabin gauge display, code reader, and data logger.
COBB Tuning and Map Selection for Your Tundra
Use the map that matches the fuel in the truck and follow COBB's current map notes before flashing. The Accessport can be uninstalled to return the ECU to its original calibration, but COBB warns against installing it over anything other than OEM or COBB software.
The included Gateway Bypass Harness is used for initial installation, unsupported ROM reads, and recovery from a failed flash. You do not need it for normal map changes or when uninstalling the Accessport.
Other Performance Upgrades for Your 3rd Gen Tundra
- AWE 0FG Catback Exhaust for Toyota Tundra 3.4L - A 3.4L catback option available with a BashGuard or dual-tip configuration.
About COBB Tuning
COBB Tuning develops vehicle-specific engine-management hardware, calibrations, intake systems, exhaust components, and supporting performance parts. The Accessport platform gives owners access to off-the-shelf maps, custom tuning support, live monitoring, and data logging from one handheld device.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.More in this category
COBB AccessPORT
Toyota Tundra Parts
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