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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Acceleration Problem

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Old Sep 13, 2012 | 03:02 AM
  #1  
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Default Acceleration Problem

Hi guys.

I have recently purchased a GS 430 2001.

There is seems to be a problem with the acceleration.

The acceleration is fine most of the time but sometimes it just dies.

i have to literally floor the gas pedal to get a minimum acceleration.

it has an Injen Race filter installed.

do you think it could be the race fliter sensor?
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Old Sep 13, 2012 | 07:45 AM
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Any check engine lights? Could well be the maf sensor dirty and/or that intake ecu. Could also be your o2 sensors.
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Old Sep 13, 2012 | 09:09 AM
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Sounds like the infamous throttle apps or motor problem
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Old Sep 13, 2012 | 09:23 AM
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Throttle Position sensor most likely. I had same issue and that was the cause on mine.
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Old Sep 13, 2012 | 12:14 PM
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TPS, or MAF. Also the o2 sensors. The MAF and O2 sensors fixed it on mine.
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Old Sep 17, 2012 | 02:50 AM
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Originally Posted by Mr Jokster
Any check engine lights? Could well be the maf sensor dirty and/or that intake ecu. Could also be your o2 sensors.

Yup. The engine check light is on. I got a computer diagnostic test on it. The error on that shows "Knock Sensor"

Will get those replaced on thursday and see the difference.
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