Hi guys,

Just to show what I've been working on the past few weeks - OBD2 sensor reading on a Myvi 1.5:



Since we share the same engines this will probably work on an Alza too. Unfortunately, no chance to test on a real Alza yet

Can't really say for sure right now for the Alza as I just tested it on the Viva and Avanza, didn't get back anything. I am 95% sure this should work without any mods for the Alza.

Thanks, might do something once it's all worked out.

Hey guys,

Quick update on my mini-project - more sensors readable including AFR, Knock Correction and Injector Pulse Width. This was on a Myvi, but should work on Alzas.

Quite soon, along with the OBD adapter. Will let you know once it's ready

If I understand you correctly, you can get every reading that is listed there on the picture. LOAD might be an exception as there are several ways to define it, but it should be possible to derive it from the sensors present.

Gearbox temperatures are definitely readable, but I don't own an auto and the sensor is on a separate ECU which there might be a concern of reading it simultaneously with the engine sensors.

If you're around Subang Jaya around next week, do let me know - we can do a quick meetup to give it a try.

Maybe could go there to get some Pontian mee hahah.

If anyone else here wants to give it a try, do let me know.

On the car end, it's just plugging it into the OBD socket under the driver's dashboard. For your phone, as long you're using Android and have a copy or Torque it's easy enough to set up.

I will bring in the newer OBD2 units - they read much faster than the standard 'blue' ones which gives you a faster sensor response, are much more stable connection-wise and have better compatibility. They have a sleep button switch as well so you can leave it in without draining the car's battery.

cleaner
ierix
singk
hoefoojun
Kiefer

Selling the adapter below, I have limited units so it's on a first come first serve basis The first person who wants to test it on their Alza gets a discount

This post has been edited by colinwong89: Nov 7 2015, 02:25 PM

It's a tool where mechanics can use to monitor the sensors from the engine ECU and read and clear engine error codes. When the car reports an issue (dictated by the CEL you see on the dashboard) you can use this tool to diagnose and pinpoint the fault reported - you won't have to go to the service centre to get it diagnosed.

As you can use it to monitor sensors, you can use it to display a digital gauge for monitoring purposes, like those boost gauges

Hi guys,

Big thanks to cleaner for helping out with testing - the OBD adapter is confirmed to work on the Alza as well hoefoojun I missed out your message, will PM you.

This post has been edited by colinwong89: Nov 11 2015, 01:45 PM

Can read the below:

Vehicle speed
Coolant temp
RPM
Throttle Position
AFR
MAP
Instant fuel consumption
Vacuum

... and a few more I can't remember right now.

It does work now

Hi guys,

Just to mention I have made some progress into the Myvi/Alza OBD2 project - gearbox sensors are readable now including ATF temperature, gear position, activation of lock-up clutch and solenoid conditions/voltages.

To those who have already bought it, I will post the update at my site soon, where you can just follow the instructions. Will announce when ready

All engine sensors have been captured, and the gearbox is still WIP (due to the app's limitation of displaying data rather than the sensor capturing process itself).

All are readable, but the Torque app does not support enumerated values at the moment which makes reading certain values from the app difficult. I'm working with the developer on this to see what can be done.

It could possibly work, but I cannot guarantee whether it would be compatible nor I would offer any support as there are various suppliers for that tool, which its internals might be different. With my tool that I can very well assure that it works on your Alza.

Thanks, appreciate it