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

?? My GS is lagging

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Old Feb 20, 2009 | 10:53 PM
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Default ?? My GS is lagging

my gs is lagging.. well only happens when im at a complete stop,press the gas (normal speed not trying to race or anything) gears shift 1, 2 ,3 then pauses around 3500-4000 rpm speed around 40-45mph.any ideas of whats going on?mileage on car is about 119,000.just got it back from the shop,thinking that when they disconnected the battery the ecu bugged out?..idk what do you guys think?
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Old Feb 20, 2009 | 10:56 PM
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happend to me when i brought the car, could be a bad alturn. or battery, or MassFlowAairSensor.
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Old Feb 20, 2009 | 10:59 PM
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When was the last time you have checked your transmission fluid? Only use Toyota Type IV.
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Old Feb 20, 2009 | 11:15 PM
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How about a more descriptive thread title to help people help you.

Edited.........?? is not a threat title
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Old Feb 21, 2009 | 07:39 AM
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well i recently bought that car back in nov from a dealership.thinking that they did do all the inspection before they sell the car.
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Old Feb 21, 2009 | 07:40 AM
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bad alturn.whats that?
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Old Feb 21, 2009 | 08:35 AM
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How about telling us about you car, maintainance history, and what GS is it?

the more info you give us the more we can help...
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Old Feb 21, 2009 | 09:56 AM
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Originally Posted by 1SICKLEX
How about a more descriptive thread title to help people help you.

Edited.........?? is not a threat title


Originally Posted by FrankT
How about telling us about you car, maintainance history, and what GS is it?

the more info you give us the more we can help...
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Old Feb 21, 2009 | 10:07 AM
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2002 gs 300 maintenance idk,i checked the log nothing on the books,but i did get it @ lexus dealership so thinking it came with a inspection.i 'm due on a oil change about 700 miles ago.
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Old Feb 21, 2009 | 10:48 AM
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Originally Posted by rjsix
2002 gs 300 maintenance idk,i checked the log nothing on the books,but i did get it @ lexus dealership so thinking it came with a inspection.i 'm due on a oil change about 700 miles ago.
Unless its a CPO they didn't have to check anything. As-is no warranty means just that. Sounds like a possible MAF issue as StanCe suggested. You could try cleaning it. Read the DIYs and proceed carefully.
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Old Feb 21, 2009 | 11:15 AM
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sorry i got kinda lazy to type it out alternator i ment, your charging system. or trans fluid or the other things i said in the previous post.
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Old Feb 21, 2009 | 02:51 PM
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Originally Posted by Debonair
Unless its a CPO they didn't have to check anything. As-is no warranty means just that. Sounds like a possible MAF issue as StanCe suggested. You could try cleaning it. Read the DIYs and proceed carefully.

ill check that out.thanks
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