OBD reader

just plug to the OBD port.




















































































Here are some pictures of OBD reader that I've made. It has similar functions as Scangauge in showing real time data of the engine operation. The only difference from those available on the market is that my system will work on Campro based PROTONs and possibly Perodua MyVi. No other system on the market that can work on these cars.

Things that can be shown:
1. engine rpm
2. throttle position
3. engine coolant temperature in degree Celcius
4. intake air temperature
5. Injection pulse width in milliseconds
6. intake manifold pressure
7. oxygen sensor correction factor
8. load (this is actually volumetric efficiency)
9. oxygen sensor voltage
10.Battery voltage
11.lambda adaptation 1 and lambda adaptation 2 (I am not sure what these are, but are available from the ECU data)
12. fuel consumed in liter (calculated by my own calculation)
13. Fuel economy in litre/100km. This is average fuel economy.(calculated by my own calculation)
14.fuel consumption in km/liter. This is instantenous data. (calculated by my own calculation).

The display can be in the form of digital values and also simple horizontal bar graphs.

At present I am working on displaying error codes or diagnostic trouble codes (DTC).

There is also a version of the kit that can tell the driver when maintenance is due (based on kilometer and calendar). This also includes reminder of road tax and insurance renewal.

The new source codes also assists for acceleration tests to be carried out. (Passby and standing start acceleration tests). It prompt the driver to execute the tests and automatically measures and display the data.

And here is a video showing the kit in action. Poor quality video, though..