Dear all,

Iam in need of a circuit and theoratical ideas about OBD ( on board diagnostic system for automobile engines with PIC controllers& Diesel engine health monitoring system for caliberating the engines.)
I have one circuit which is published in Elector electronics, but it is not a completed one.This OBD can be connected to the laptop throuch RS 232 interface for monitoring the engines.But in this article there is no information about the sensors and other circuit which connected in the engine.

If anyone having idea about this please help me.
kindly treat this as a humble request and do the needful
:?: [/b]

__________________
Dr.Edison