I have recently changed the injector sleeve o-rings on a Jackaroo 4JX1 motor with a mate. We have checked over everything we could think of and still the motor will not run. What we found when doing the click test on the injectors was NO SOUND!
It seemed as if the injector loom was dead. We tested the injectors on another Jackaroo with the same injector loom and all 4 injectors give 5 clicks. The Tech 2 can read the ORPS and oil temp sender so the loom does not appear to be completely dead but we can't get any power to the injectors. It appears as though the injector outputs are dead or maybe the injector common earth wire is loose? Or maybe the ECU output drivers are dead - is there any way that we can test these injector outputs coming from the ECU? Does anyone know what voltage or whatever to measure and where?
Has anyone else had this problem? We'll try anything if it sounds half right.
Cheers,
Wayne