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DashCAN OBD Interface

DashCAN OBD Interface

Plug into the OBD port and your ECU is on your phone

DashCAN OBD plugs into the OBD port and streams every channel your standalone ECU broadcasts: up to 20 live gauges at 50 updates a second, full data logging, and CAN switches that control the car.

€79.90Preorder

Delivery in 5 to 10 daysFree shipping from €199.00, otherwise €20.00

1
See the app in action

Expected to ship: 2026 November

  • 14-day right of return
  • 2-year warranty
  • Ships internationally from the EU

Hard-wiring a race loom? DashCAN Wire-In is the same interface with a 4-pin screw terminal.

Live updates
50/s
Live channels
20
CAN access
Read + write
Wireless
Bluetooth 5 LE

High-speed CAN with switchable 120 Ω termination, OBD connector, data logging with XLSX export. OBD2 over CAN (ISO 15765-4): 11-bit and 29-bit IDs at 500 or 250 kbit/s, detected automatically. iOS and Android.

Your phone becomes the dash

Every screen below is live CAN data in the free DashCAN app. Build your own layout, pick gauge styles and colors, then log everything you see.

Live dashboard: your channels, your layout, 50 updates a second.
CAN switches: race mode, presets and the pit-lane limiter from the phone.
Log viewer: record every channel, scrub the trace, export XLSX.

Is DashCAN OBD right for your car?

It plugs into the OBD port, but it is not a diagnostic scanner. It reads the CAN stream a standalone ECU broadcasts, or standard OBD2 live data from a factory ECU. Thirty seconds of honesty so you buy the right thing:

A great fit if

  • Your car runs a standalone ECU (like Ignitron) that broadcasts data as custom CAN messages
  • The OBD port's CAN pins are wired to the bus your ECU transmits on
  • Your car is stock and speaks OBD2 over CAN (ISO 15765-4, most cars from around 2008): standard live data such as RPM, speed, temperatures and throttle
  • You want plug-and-play: no loom changes, and it moves between cars in seconds
  • You want to log sessions and fire CAN switches without a laptop in the car

Not for you (yet) if

  • Your car uses an older non-CAN OBD2 protocol (K-line or J1850), common before about 2008
  • You expect fault-code scanning like a workshop diagnostic tool, which is not what DashCAN is for

Not an ELM327 dongle, even if it uses the same port

A generic dongle asks the car polite diagnostic questions. DashCAN reads the raw stream your ECU is already sending, and can talk back.

Generic ELM327 dongle

  • Polls a handful of OBD-II diagnostic PIDs, a few times a second
  • Factory-defined parameters only
  • Read-only, cannot switch anything
  • Standalone ECUs usually do not answer OBD-II requests at all

DashCAN OBD

  • Listens to raw CAN frames at full bus speed
  • Any channel your ECU broadcasts: 20 at once, 50 updates a second
  • Writes too: CAN switches trigger real functions in the car
  • Built for standalone ECUs from day one, and speaks OBD2 when the car is stock

Stock car? OBD2 works too

Set the protocol to OBD in the app and DashCAN asks the factory ECU for standard live data over the diagnostic CAN bus. The car answers one request at a time, so the channels share its reply rate: expect fewer updates a second than from a standalone ECU broadcast, and more with fewer gauges.

Supported

  • ISO 15765-4 (OBD2 over CAN), used by most cars sold in the EU and US from around 2008
  • 11-bit and 29-bit CAN IDs at 500 or 250 kbit/s. DashCAN finds the right variant by itself, no setup
  • Standard SAE J1979 live data (service 01): RPM, speed, coolant, intake air and oil temperature, throttle, engine load, MAP, ignition advance, battery voltage, lambda, short and long term fuel trim, fuel pressure and ethanol content
  • The app asks the car which of these it supports and only offers those as gauges
  • Live gauges, logging with XLSX export and video overlays, same as with a standalone ECU

Not supported

  • Older non-CAN OBD2 protocols: ISO 9141-2 and ISO 14230 KWP2000 (K-line), SAE J1850 PWM and VPW. These are common on cars built before about 2008
  • Reading or clearing fault codes, and manufacturer-specific channels (service 22)
  • CAN switches: on a factory ECU DashCAN only sends standard diagnostic requests

Setup in four steps

The full guide with pictures and the per-ECU settings is on the First Steps page.

  1. 1

    Connect it to the car

    Plug it into the OBD port. The port's CAN pins have to be on the bus your ECU broadcasts on.

  2. 2

    Enable the CAN broadcast in your tuning software

    Each ECU has a short guide with the exact settings and pins. Ignitron users import two ready-made files.

  3. 3

    Install the free app and pair over Bluetooth

    iOS or Android. Grant the permissions the app asks for, then pair the interface.

  4. 4

    Pick your ECU in the app

    The channels show up live. Build your layout, then drive.

Works with

Ignitron ECU, ECU Master EMU, ECU Master EMU PRO, Emtron (needs the Apex), Haltech (needs the Apex), Hondata, MaxxECU, MegaSquirt, MoTeC (needs the Apex), rusEFI, Speeduino, Syvecs (needs the Apex), VEMS (needs the Apex), and any other ECU that can broadcast custom CAN messages.

This interface runs at a fixed 500 kbit/s. Emtron, Haltech, MoTeC, Syvecs and VEMS broadcast at 1 Mbit/s, which only the DashCAN Apex can read.

Which DashCAN is right for you?

Same app, same live data. Pick by how you connect, and whether you want lap timing built in.

Plug in before the next trackday.

Closed-course use only. DashCAN products are intended solely for closed-course competition and motorsport use and are not type-approved or certified for use on public roads. Use them lawfully and safely, and do not operate the app while driving. See our Terms & Conditions for full details.