- If the engine-ECU is replaced, another ECU related to KOS system should not be replaced together.
If at least two ECUs needs to be replaced, replace one ECU and then register its ID with M.U.T.-III.
Then proceed to the replacement of the other ECU.
- If the engine-ECU is replaced, perform the coding for it.
- If the engine-ECU is replaced, use M.U.T.-III to write the Chassis No. (Refer to
GROUP 00 - How to Perform Chassis Number Writing
). - After the engine-ECU replacement, idling speed may be unstable because the MPI engine
learning is not completed. To make it stable, let the system learn the idling (Refer to GROUP
00 - Precautions before Service, Learning Procedure for Idling in MPI Engine ).
)