ryan632

I ended up replacing the ecu with a refurbished one and have not had a problem since.

My sc300 has been having trouble shifting into overdrive. Sometime it will shift just fine, and other times it won't go into overdrive. I just had the capicators in the ECU replaced, and its still doing it. I have also noticed that the spedomoter is off by about 10 MPH, and the tach is off as well. Is it possible that the circuit board is bad. I did a fluid and filter change back in March. The car has 256,000 miles on it. Any advice would be greatly appreciated. Thanks Ryan