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96 LS400 530303 ECU This car has always felt lazy but I assumed it was just how they ran. A week ago I took off from work and it felt like it had twice the power it has ever had (part throttle and WOT), but has returned to "normal". This has happened a few times in the last year but I cannot...

I have an Autel Maxisys MS905 diagnostic/scan tool. It will communicate fine using generic OBD2 J1850-VPW, but if i try to connect via the actual Lexus specific menus to get OE Level data/tools it will not communicate. I am assuming you have to go through one of the other 2 diag ports (rectangle...

For those of you that have used some other method to control your trans shift solenoids other than the stock ecm, is there anything required to keep the stock ecm happy after you have disconnected the solenoids from it? Will it still retard ignition timing when it "thinks" it is time to shift?