IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Delayed launch when flooring the gas pedal??

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Old 07-05-07, 07:29 PM
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LexusIS-TL
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Default Delayed launch when flooring the gas pedal??

What's up with that? Today as I was trying to get to the left lane (right lane was coming to an end and I had to merge left on freeway traffic) and I saw a clearing up ahead. I needed power to get me up there since I was rolling at around 30mph. I stomped on the gas pedal and what the crap? There was like a 3-5 seconds delay in power transfer!!!!!! Once I finally got going, it was smoking fast--but what's the deal with the delay? Hope nothing is wrong with the drive by wire throttle, tranny, etc.
Old 07-05-07, 08:05 PM
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HEY!!!! I have the same issues... Whats really going on?
Old 07-05-07, 08:09 PM
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Whew, glad that it's not just me....must be a common feature in Lexus, and hopefully not a problem. But that sucks though because you don't get the power on demand. Not good. I could've been in an accident if the power fail to deliver within those valuable seconds!!!!
Old 07-05-07, 08:10 PM
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gsrthomas
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Throtle by Wire crap.

I rather have a conventional cable connected to the gas pedal.
Old 07-05-07, 08:12 PM
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See, I always thought that the drive by wire throttle system was instant, no lag because everything is actuated by the computer. Which was what makes drive by wire so neat. It senses the gas pedal depressed downward and boom, throttle opens up for instant power.
Old 07-05-07, 08:25 PM
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pfantom68
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3-5 seconds doesn't sound normal for some reason...

I mean, I know when I drove my friend's 2007 Trailblazer SS, there was a split-second lag that was very noticable, but most "normal" drivers wouldn't even notice it at all.
Old 07-05-07, 08:45 PM
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It was also very hot too when it happened. Maybe heat has something to do with it. It was 100+ degrees again. I notice the car drives different in really hot weather than in cooler weather.
Old 07-05-07, 08:46 PM
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ba-b4
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I think it's throttle by wire combined with the transmission computer trying to get the right gear or something.
Old 07-05-07, 08:54 PM
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559IS350
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Yea I get the same too, sucks that Lexus has put alot of technology into the car but seem to left out the transmission part out. Other competitors has DSG,SMG,downshift rev matched. But Lexus gave the IS350 a standard auto.
Old 07-05-07, 09:06 PM
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I should've tried forcing transmission response by using the sport shift. But everything was happening pretty quick and I wasn't thinking about manual shifting.
Old 07-05-07, 09:34 PM
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TRD, was your A/C on? You mentioned it was 100+ degrees. If your A/C was on and you floor your gas pedal there will be a delayed response but 5 seconds seems too long. Maybe you just felt it was that long of a throttle response.
Old 07-05-07, 09:37 PM
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Yeah, I had the AC on because it was too hot outside. 5 seconds may have been an exaggeration, but it felt long for the motor to kick in. THat's why I put down at least 3 seconds. Definitel not a 1-2 second delay, because it was just that long. I thought it wasn't getting gas at first so I was like, dead in the water for a bit. Then the engine just ROARED to life and off I go. If I had an exhaust system, you could hear it good. The tach was redline all the way through the damn gears finally....
Old 07-05-07, 09:45 PM
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TRD, I know the feeling man. I live in the Inland Empire and it gets really hot here. Don't you wish we bought the 350? HAHA.
Old 07-05-07, 09:47 PM
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I work over in Fontana/Colton and it's dead hot. Well, not as hot as Palm Springs, but hot. Just today parkng outside, it was 106 degrees. A couple of days ago, it was 112 degrees (that's what it says on the temp display)!!!!
Old 07-05-07, 09:48 PM
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It could be all in the air too...

Usually in the Winter, when i steped on it, i got a much faster response time.

I really dont know though.. When i first bought the car, I had alot of tourqe JERK. But now its gone.


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