Acceleration issue..
Acceleration issue..
I don't know if anyone on the forum has had an issue like this with their LS460. About 10 minutes after a cold start in the morning I get a loss in power. I 1st noticed it just driving along at 60mph and all of a sudden it felt like the car was being loaded down. It feels like the engine is getting it's timing pulled back A LOT. It's intermittent. By the time I 1st took it down to the dealer (almost an hour away) it went away. They did get it to do it one morning but cleared out the cars ECU and it didn't do it again for them. I took it back to put some miles on it and it did it again. I dropped it off yesterday and they said it wasn't doing it for them. I don't want to pick it up until they find out what it is. It's frustrating because 1) I don't like people driving my car, and 2) I want to be able to drive my car without any issues. When it's bad you can give the car 1/2 to 3/4 throttle and it feels like you are giving it 1/4 throttle. Also the exhaust does get louder when this happens as well. Lame...
Lexus Test Driver
Joined: Apr 2011
Posts: 1,379
Likes: 7
From: Wa
hmmmm I wonder what could it be, bad fuel????, dirty throttle body or air filter, please fill us in what they find, i would suspect this to happen for me being that i barely drive this car, but no probs....
Doing a quick search this might be it. We shall see... http://www.lambros.net/LexusTechInfo...SB-0033-08.pdf
Last edited by PRSUIT460; Apr 7, 2012 at 10:30 AM.
I had this issue too and took it to the dealership. They updated my ecu for free and it never happened again. It should be covered under the power train warranty. There are cases where the cylinder heads had issues fortunately mine wasn't that.
Racer
Joined: May 2004
Posts: 1,717
Likes: 89
From: FL
Doing a quick search this might be it. We shall see... http://www.lambros.net/LexusTechInfo...SB-0033-08.pdf
Lead Lap
Joined: Jul 2011
Posts: 467
Likes: 4
From: Lake Oconee GA
Doing a quick search this might be it. We shall see... http://www.lambros.net/LexusTechInfo...SB-0033-08.pdf
http://www.lambros.net/LexusTechInfo...SB-0033-08.pdf
Happy Easter to all !
Mikey Lulejian - Lake Oconee, GA
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The tech at the dealer has been trying to reproduce the issue for days. He did his best to get something to show that something is going on by logging with the TechStream and nothing. I drove it with him this morning and it drove fine. UGH. Lexus won't approve any warranty repairs unless they have logged data. I tried to get them to lend me their Techstream 
It would be nice if it never happened again but if it does, I'd like to get it addressed somehow.
It would be nice if it never happened again but if it does, I'd like to get it addressed somehow.
Pole Position
Joined: Jun 2011
Posts: 265
Likes: 2
From: Virginia
I've been having the same issues. I will address this when I take the ride back to the dealer. Almost got hit last week when my car hesitated when I floored it to get in the fast lane on the interstate. Scary feeling without a doubt!
Racer
Joined: May 2004
Posts: 1,717
Likes: 89
From: FL
My car is a 2008, but an early-build (11/07) for that model year. When my ECM calibration was updated, I found out I had the one just before the most current one. I also found out that there had been three or four calibrations since the LS460 was released. In other words, they had been trying to get rid of this problem for a while. If it was bad for me with the calibration just before the current one, I can only imagine how the original calibrations felt.
