ECONTROLS & WOODWARD Natural Gas Engine Electronic Control Systems Test Cable, It is a Multibrands Natural Gas Engine Electronic Control Systems Test Cable, It uses Econtrols and WOODWARD diagnostic program. And can work on natural gas engine from Weichai Group, Yuchai Group, SDEC and SINOTRUCK that use Econtrols and WOODWARD electronic control system.It can not work on CANbus system right now. we will update it soon.