2020–2021 Mazda 6 2.5L 4-Cylinder Gauge Setup

Flock 52mm Gauge

Flock 52mm Gauge

One gauge for OBD-II data and wired sensors. Choose your setup below.

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Representative Mazda 6 exterior
Representative vehicle photo. Photo: Kevauto · CC BY-SA 4.0. Image unchanged.

This setup covers the US-market 2020–2021 Mazda 6 with the 2.5L 4-Cylinder engine. Use one Flock 52mm Gauge for your selected OBD-II readings and wired-sensor measurements.

Choose the correct powertrain

Model years
2020–2021
Engine
2.5L 4-Cylinder
Listed transmission choices
Automatic (S6)
Listed drive configurations
Front-Wheel Drive

For a Mazda6, choose cooling and oil monitoring around the selected engine rather than treating every powertrain as one setup.

What to monitor on this engine

Coolant temperature and RPM are practical first readings for this engine. Oil temperature and pressure are useful additions for warm-up and sustained engine load; a wired sensor provides a separate measurement route. An automatic-transmission temperature reading belongs to the automatic gearbox; it should not be labeled as a manual-gearbox reading.

Installation approach

A small driver-facing bracket should leave the center screen and climate controls accessible. Fit the mount from your normal seating position before fixing it in place.

Connect the OBD-II adapter at the vehicle diagnostic connector and secure its cable along fixed trim. Leave the connector accessible for servicing. Follow the Flock user manual for gauge power, adapter setup and wired-sensor connections.

Custom PID settings

These OBDb definitions fit the current Flock firmware. Enter the request, CAN header, formula and unit shown below in the gauge’s custom-PID settings.

Engine oil temperature
  • Request: 221310
  • CAN header: 7E0
  • Formula: (A*256+B)/100-40
  • Unit: C

OBDb source definition

Engine oil pressure
  • Request: 220415
  • CAN header: 7E0
  • Formula: (A-256*floor(A/128))*256+B
  • Unit: kPa

OBDb source definition

Transmission temperature
  • Request: 221E1C
  • CAN header: 7E1
  • Formula: (A*256+B)*9/80+32
  • Unit: F

OBDb source definition

Configure your gauge

The gauge displays whole-number OBD readings. For temperature definitions labeled C, use the gauge’s temperature preference to choose Celsius or Fahrenheit.

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Sources

Signal definitions are adapted from OBDb contributors under CC BY-SA 4.0. Adaptations include Flock-compatible formulas and unit labels.

Get your Flock Gauge

Choose the Flock 52mm Gauge with the OBD-II option for this setup.

Shop the Flock Gauge with OBD-II