4M41 cant start

SOURCE: I can't find the engine number on the mitsubishi

Most montero*s have 3 ids,One is located right side of engine as looking under bonnet,another on underside of bonnet,another under o/s rear wheel arch which if still there confirms vin number.

SOURCE: meaning of code 151 0n 4m41 engine

P0151 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
this could be a fluke code I would earse it and see if it comes back before putting the sensor in there not cheap. Bank 2 means witch side of the engine bank 1 is the side that #1 cylinder is on bank 2 is the other side sensor 1 means upstream above the catalytic converter on the engine side sensor 2 is below the catalytic converter

SOURCE: mitsubishi pajero3.2 d.I.d 4m41 reving up

Hello and sorry to hear your having this trouble.The best way to fix this problem is to have you vehicle scanned for engine fault and retrieve that data and properly repair the problem.The problem you having could be one of several switches so guessing would be waisting allot of time and money.

SOURCE: my 4m41 engine suddenly have

so much vibration to a diesel engine signal's problem on fuel system. the system either be has air on fuel lines( fuel lines must be solid,no trapped air.) or a dirty filter.(it also necessary the system to be calibrated).

SOURCE: the engine 4M41 is overheating heating on hills

check ur cooling fan at high engine rpm.