Swapping ECU 2004 ls430
#1
Rookie
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Hey guys,
Please help. I have 2 ls430s a 2004 and 2005. The 2005 works fine and the 2004 has an issue. I want to take the ecu from the good car. But how can I program the new ecu to the car? Appreciate the help guys!!
Please help. I have 2 ls430s a 2004 and 2005. The 2005 works fine and the 2004 has an issue. I want to take the ecu from the good car. But how can I program the new ecu to the car? Appreciate the help guys!!
#5
Instructor
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Make sure both ECU’s have the same part number. I am not sure what your it was, but in that time frame the transmission went from 5 to 6 speeds, so the ECUs, are not interchangeable. Have you considered sending the ECU to have it serviced? They can add horsepower, and fuel mileage. Make sure none of the capacitors are leaking, and make many other changes for pretty reasonable price and you’ll find it was worth every penny.
Thread
Thread Starter
Forum
Replies
Last Post