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2637 Views 46 Replies 11 Participants Last post by  BLACK_IS 300
Just wanted to let you san diego locals know about my great conversation with Kearny Mesa Lexus: called and spoke with a service technician about scheduling my 10,000 mile oil change and when I asked about the trac/ecu update, they knew exactly what I was talking about! The technician ordered the part today and I will have the update installed next week when the new trac unit comes in. The tech said that they are going to replace the whole trac unit and also reprogram the ecu. Can't wait. Will keep you guys informed about any improvements in the hesitation. So for all you san diego guys, call kearny mesa lexus and they'll hook you up with the updates!

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The Lexus people should and probably will warn you'all that want this ECU thing that it is NOT REVERSABLE .
And the word is its really not worth messing with. This ECU thing will not make the IS300 perform any better.
In alot of cases it's made the cars sluggish, or made the cars shift alot harsher. IE...slamming into gears.
Just thought I'd let you know.
Like the old saying goes... If it ain't broke don't fix it
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mkaufman ,

I didn't mean imply that people on this forum felt the sluggish problem. I was speaking of the folks that had the update done at Hendrick Lexus here in Charlotte.
By all means if you aern't happy with the performance of your car change it.
Thats your right.

My wife's car is one of the first sold here in the states. We got it June 27th 2000.
IMO, the car has it's own characteristics.
I warned people here on this forum from the beginning that the IS300's throttle doesn't need to be Stomped On. Rather a quick squeeze of the throttle gives you the same results of stomping the throtle.
As far as any of the other complaints seen on this forum about transmission problems we haven't experienced any. Thank Goodness!

We are going on 14,000 miles.
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