2006 gs 300 ecm plug and play

Asked by herGs300 Feb 17, 2023 at 12:46 AM about the 2006 Lexus GS 300 AWD

Question type: Car Customization

i replaced my ecm and plugged the obd in my car but my car still has a hard
downshift what are the steps to reprogramming my car

2 Answers
311,355

Gene answered 2 years ago

A hard shifting transmission is usually the transmission is on its way out but it can also be bad shift solenoids, as stated above you should have taken it to a transmission shop first.

Mark helpful

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