you dont have to unplug the battery and then the fuse, just the fuse

 

I did just the battery (did not pull any fuses) left unhooked for a few hrs. This morning, yes the car runs better. Feels much more peppy, responsive and 10x more fun to drive, like my GS400 does. Throttle response both off idle from a stop light and at highway cruise is snappier. Also the trans seems more at attention, rather than sort of lagging as it did before. The motor rpms a bit quicker. There is a definite improvement that occurred. Car just feels right now. I was worried that Lexus "refined" the GS430 to the point of making it too vanilla... now my car is back to "something wicked this way comes" .. if you recall that TV ad from 98 or so.. btw, anyone have that TV ad in a video file somewhere? Quiet at the edge of a forest, suddenly you see lights and hear a car racing through the woods...the GS from Lexus.

 

I just tried resetting the ECU and i can definently say it makes a huge difference. The first time i reset it, i just removed the ECU-B fuse and put it right back in. My seat positions, time, and radio presets were all fine. After driving the car, i was pretty skeptical that i would be able to get any gains from reseting the ecu simply because of my driving style. However, because of all the posts that suggest leaving the fuse out or battery disconnected for long periods of time, i decided to remove the fuse, let the car sit for 20 minutes and then put the fuse back in. This time, my seat settings and the clock time were both lost. When i drove the car this time, i could feel a huge difference. Almost as big a difference between the PWR ECT setting and the normal setting. Throttle response is much quicker and the transmission is much quicker to downshift when you apply throttle. The key to the reset is leaving the fuse out for a while, i would suggest atleast 10 minutes. If you attempt to reset your ecu, but your clock time and seat settings are saved, you didnt leave the fuse out or the wire disconnected for long enough.

I love the increased performance, and i will be resetting the ecu atleast once a week from now on, probably more.

 

This might be a noobish question, but, why do you reset your ECU? Do you have to?

 

Reseting the ECU every week? thats a lil too much, running a significant risk for just a little more horsepower..

 

i've only owned my GS for a month but the car wouldn't upshift or would downshift while cruising. i guess that's partially my fault for driving that way and having the car learn that. gas mileage was horrific, something like 10mpg or so.

i reset the ECU this afternoon and drove around. the car definitely felt a lot smoother afterwards.

 

I reset mine every hour.....

 

I know your kidding right?

 

LOL, yeah...

 

I was like Whoa! at first. But responding to your post made me realize that it would be a good time to reset my ecu. I pulled the fuse out about a 1 1/2 before I left work yesterday.

 

I reset mine when my battery dies, lol...

 

Just don't drop the fuse...it's gone as far as I can tell

 

I've read somewhere that resetting your ecu after along time driving the car normal can put back at least 30-50 hp. on turbo cars..but "NA" cars not sure about that...I think it's worth the try.

 

uhhh.... im not sure where you read that from but I do not think that is the case

 

wow some one didnt read a single post on this thread lololol