Isuzu's 4JA1 and 4JB1 commonly used on Hi-Landers and Crosswind's are using mechanically driven fuel injection systems, which is hindi monitored ang amount of fuel na iniinject sa makina. So kung mali ang timpla ng injection pump, malamang either bluish or black smoke ang lalabas sa tailpipe. The 1KZ-TE uses ETCS-i (Electronic Throttle Control System - intelligent) pero indirect injection siya, so may pre-combustion chamber pa rin compared to the 1KD-FTV of the hilux and fortuner which is common rail direct injection system. And the injectors on the 1KZ series are computer controlled and it's also utilizing a high pressure pump so diesel injections are precisely monitored by the computer box.
And siguro, yung nabili mong JDM na Hiace was well maintained by the previous owner sa japan, so consider yourself lucky na yang unit na yan ang nakuha mo. Wala yan sa kung saan assembled ang engine, nasa alaga yan.
