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

What a difference cleaning the MAF and air filter makes...

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Old 04-05-10 | 08:23 AM
  #76  
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Definitely going to have to do this. I do mainly suburban driving and normally only average 18 mpg, which isn't bad, but it isn't as good as I'd like to see. I track my mileage too, religiously, so I'll be interested to see what kind of returns I get.
Old 04-05-10 | 11:37 AM
  #77  
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Originally Posted by GS4_Fiend
What was wrong with the STB?
The bar itself was fine. I originally decided to keep the engine cover on with the stb but later removed it and that seemed to be the problem.

Originally Posted by RoboRam12
Definitely going to have to do this. I do mainly suburban driving and normally only average 18 mpg, which isn't bad, but it isn't as good as I'd like to see. I track my mileage too, religiously, so I'll be interested to see what kind of returns I get.
Before this was done I had no issues with idling but car feels even more smoother now with better response when I press on the gas. Well worth it IMO
Old 04-05-10 | 12:28 PM
  #78  
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Glad the issue was as simple as the engine cover being removed. So my question is, how did the ECU know that the cover was off? LOL
Old 04-05-10 | 01:21 PM
  #79  
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Maybe the engine was being pressed down by the stb? Interesting subject.
Old 04-05-10 | 01:38 PM
  #80  
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well cant wait to try this out and see my gas mileage cause 18 sucks!!!

Last edited by ac921ol; 04-05-10 at 01:43 PM.
Old 04-05-10 | 06:33 PM
  #81  
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Originally Posted by sakataj
so u claiming u get deep into the 400's? i call shenanigans. i drove my car back from atlanta at 2,400 rpm the WHOLE way just to see what my mileage was. i got back into Memphis at about 390 and the light had been on for like 40 mins or so. only stopped once and wasn't running the a/c, NO back seat,NO trunk interior, and on stock 16's so i doubt you got DEEP into the 400's ESPECIALLY ON 19'S. yeah 400 is possible but not deep into them and not with that setup



best i did was the aformentioned trip above got like 24 i think



um, your a teenager!!!!

....they cant help but stare to see whose making all the racket and trying to be cool with what im sure they believe to be your parents car hehehe
I go wide open throttle past the high school that I went to in the 330Ci. Most of the kids and teachers know who I am. I just graduated last year. For the ones that don't, they can ask the others who do know me.

I was always the kid with the cool cars in high school... out of the 4800 students that went there.
Old 04-05-10 | 07:00 PM
  #82  
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Originally Posted by MrG4Life
Before this was done I had no issues with idling but car feels even more smoother now with better response when I press on the gas. Well worth it IMO
Yeah, I definitely noticed all of that. It was pretty easy too, the hardest part was rushing to beat a pop up thunderstorm. I had to close the hood and book it to the garage because it started to pour while I was reattaching the battery cables.

But it was well worth it.
Old 04-05-10 | 08:36 PM
  #83  
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Just wanted to ask did any of you guys actually changed the O-ring on the MAF sensor?
Old 04-06-10 | 06:25 PM
  #84  
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Originally Posted by sleeper408
Glad the issue was as simple as the engine cover being removed. So my question is, how did the ECU know that the cover was off? LOL
Originally Posted by GS4_Fiend
Maybe the engine was being pressed down by the stb? Interesting subject.
Originally Posted by GS4_Fiend
Just wanted to ask did any of you guys actually changed the O-ring on the MAF sensor?
Actually had nothing to do with the ECU. It was me trying to keep my engine cover on when I installed my stb. I didn't change any O-ring.
Old 04-26-10 | 05:14 PM
  #85  
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Well i just cleaned my MAF and went ahead and cleaned my throttle body too. But noticed that when i pulled the acceleration mechanism(where cable is hooked to) all the way(WOT), the butterfly inside doesnt open fully all the way...is this normal? Is there a sensor that knows when you stomp on the gas to open the butterfly WOT?
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