fuel octane problems?

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Dec 30, 2009 | 08:30 PM

armysc400

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Driver School Candidate

Joined: Dec 2009

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From: tx

fuel octane problems?

I just bought my first lexus its a sc400 1992 i love it so far, however when i put gas the car acts funny it bogs and idles very rough i dont know why this is happening any feedback would be greatly appreciated. i use 93 octane.

Dec 30, 2009 | 09:57 PM

HeisLegend

Lexus Test Driver

Joined: Aug 2008

Posts: 865

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From: SATX

I really doubt that it would be the gas itself.
does it smoke?

Last edited by HeisLegend; Dec 31, 2009 at 08:03 PM.

Dec 31, 2009 | 06:59 AM

ishootstuf

Lead Lap

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Joined: Jun 2006

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From: Florida

Fuel filter perhaps. When you gas it up, you're stirring up all the crap in the tank. You may go through a few fuel filters.

Dec 31, 2009 | 08:10 AM

1JZPWRD

1JZ Single SC400

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Joined: Jan 2009

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From: Alabama, Roll Tide!

A bit more info would be great. Did it start all of a sudden? Some days better than others? Have you replaced fuel filter? etc?

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