I just thought I would share with you some of our experience with KCLV and some ideas of how to improve it. For those of you who haven’t heard of it, KCLV stands for “Knock Correction Learn Value.” It is simply a long term ignition correction factor. After you flash your car or reset your ECU, the KCLV goes to 15. Once you start driving the car, particularly doing long pulls at high load, the ECU starts bumping the KCLV up in small incremental steps until some knock is detected.Continue reading “Improving Knock Learning and Power on Lexus ECU’s”
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