OBD Serial Data

[Gavatron]

JZX83 didn't work with the local tester. Whacked it on a VCV10 Camry V6. This is the order they come out in and the units of measurement.

Injector - ms
Ignition - 'CA
ISC Step # - ##
Engine Spd - RPM
Airflow - v
Coolant - 'C ***
Throttle - %
Vehicle Spd - km/h ***
Target A/F L - v
Target A/F R - v
A/F FB Left - ON/OFF
Knock FB - ON/OFF
A/F FB Right - ON/OFF
STA Signal - ON/OFF
IDL Signal - ON/OFF
A/C Signal - ON/OFF
OxL Signal - RICH/LEAN
OcR Signal - RICH/LEAN

*** - These units can be changed in the setup menu of the tester, along with MAP/MAF units if the car has one (kpa, mmHg, g/s, lb/s etc)

[bk_]

What I'd like to check for interest sakes if whether a PowerFC outputs toyota OBD1 information.

Hmm... I should have realised.... PowerFC does not simulate toyota OBD data output. Confirmed it today.

[auto351]

Hi, looking to build one, but dont want to start from scatch with the pic board.
did any one use a pre built board like the below listed or can suggest an other starting point.



PIC40 Prototype Kit for 40 Pin Microcontroller 16F877 | eBay

[auto351]

Hi, Just wondering if there is an off the shelf device which will do this OBD ? or is it still build your own ?

[bk_]

I was tempted to commercialise it but could see close-to-zero market demand for it, let alone be able to make a "product" out of it.

Not only that, in terms of useful features I could create was zero, due to the update cycle (once every 1.3 seconds) of the protocol.

Trying to find one of these used would be quite a challenge (then again, techtom were the Toyota chipped-ECU masters back in the day): MKIV.COM