Advantages and disadvantages of Highlander 1ar engine

Advantages of Highlander 1ar engine: good power performance and good power adjustment. The disadvantage is high fuel consumption.

Toyota Engine 1AR is an old engine model imported from Japan, while Toyota Engine 3AR is a domestic engine and a new AR series engine of Toyota. The adjustment of automobile engines is different. After power adjustment, the power performance of Toyota engine 3AR is improved compared with that of 1AR engine. Toyota engine 1AR has not undergone engine power adjustment.

Precautions for engine maintenance:

Unless otherwise specified in the test, ECU and sensor shall not be tested with pointer multimeter, but with high impedance digital multimeter (vehicle-specific multimeter). It is forbidden to use "fire test" to check the on-off of transistor circuits. Do not use the test lamp to test any electrical equipment connected to the ECU to avoid damaging the transistor. The pulse circuit should be checked with LED lamp or oscilloscope.