All Honda models (1992 - 2001 OBD1/2A/2B) that use the proprietary 3 pin or 5 pin DLC diagnostic connector are fully compatible and supported.

Please follow this simple guide on how to check if Hondash will work with your car's ECU.

We encourage our customers to follow the compatibility guidelines prior to the item purchase, because of possible diagnostic connector differences between markets and model years. In case of US market, the compatible 3 pin diagnostic connector was utilized only on OBD1 models ('92-'95), whereas the rest of the world (Europe, Japan, Australia, Russia, etc...) saw mixed usage of 3 pin / 5 pin on OBD1/2A/2B models ('91-'03).

Car models that use the 16 pin diagnostic connector version are not supported at this moment.

Yes, it does work, however the hardware and ROM setup must comply with the compatibility guidelines.

DLC diagnostic connector can be found in various locations under the dashboard.

Some OBD1 models ('92-'95) don't have any power source in DLC diagnostic connector (3 pin style connector with only two wires connected to it, middle pin and wire are missing). In this case you have to wire the scanner to a custom power source.

No, you can leave it connected. However if you're not going to drive for a longer period it's highly recommended to disconnect the scanner to prevent possible car battery drain, when you power the scanner directly from DLC port, which is hot at all times.
For permanent installation it's recommended to use an ignition switched power source to power up the scanner.

Oil TemperatureNo, Honda engine does not have an oil temperature sensor
Oil PressureNo, Honda engine does not have an oil pressure sensor, only a pressure switch
AFR - Air to Fuel RatioNo, the majority of Honda engines use a narrow band oxygen sensor which can't read AFR values
Fuel levelNo, the fuel level sending unit is not connected to the ECU

Please follow the guide on Fuel consumption calibration.

Currently no, but the app will receive an update to support it in later development stage. However this will not be a replacement for Hondash scanner as the ELM327 supports only newer vehicles.

The compatibility with OBD2 ISO 16 pin ECUs is being investigated, more information will be released in Q1 2021.

Android 4.4.4, quad core processor, Bluetooth 2.1, GPU graphics OpenGL ES 2.0

Yes you can, however we don't guarantee that it will 100% work. Very small percentage of models and manufacturers, usually the Chinese ones, have strict policies and allow only very specific devices to pair with their head units, or their Bluetooth communication implementation does not comply with the established Android SDK standards. Because our primary development platform is the smartphone we don't offer any assistance regarding head units (brands inquiry, etc.).

No, however the support is being considered. No further details available at this moment.
Since Hondash works with Android versions as old as 4.1 (2012) we suggest to buy a cheap used device (~€30) to work around this issue and use it as a dedicated device for Hondash.