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Throttle hang and the Idle Stepper Table

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Old Aug 28, 2008 | 06:13 AM
  #346  
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From: Slc Utah aka SL,UT
Originally Posted by TTP Engineering
A typical side effect however is a poor cold idle.
yea cold start too good thing I'm in the dry dead desert heat but if it cools down enough this winter I could try bumping it up a little
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Old Aug 28, 2008 | 06:18 AM
  #347  
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From: Tokyo Japan
I drove it last night and I couldn't tell if pressing the clutch twice did anything or if it dropped on its own. The increase and drop of RPM's normally happen in 2-3 seconds.
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Old Aug 28, 2008 | 12:46 PM
  #348  
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I've never really been able to see a difference with pushing the clutch. I messed around with some of the idle tables yesterday without changing the stepper table, and that seemed to affect the hanging also. I think there's more to it than just this table.
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Old Aug 28, 2008 | 02:05 PM
  #349  
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From: Chelsea, AL
If you log the ISCV values you'll see that on a shift the stepper lookup table is what it referenced ... not the idle ISCV tables.
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Old Aug 28, 2008 | 08:13 PM
  #350  
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I believe you. When I changed the idle tables, it hung a lot longer than it does now, but it dropped to target idle pretty quickly. With the tables I have now, it doesn't hang but coasts down to target idle smoothly. It probably took about the same amount of time to reach target idle either way.
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Old Aug 28, 2008 | 09:10 PM
  #351  
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Which version of these is the best to use with the stock '05 ROM? We obviously get the in between version of them. (Based off 96940011)
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Old Aug 30, 2008 | 07:26 PM
  #352  
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From: Tampa, FL
Originally Posted by biggie5252
Care to explain?

I don't really know the functionality of the system well enough to ponder the reason why, but it seems everyone who has this problem is an ACD equipped car. I have a leak and my ACD fluid ran low so the lights came on, and maybe my mind is playing tricks on me, but throttle hang doesn't appear to be happening. As the fluid was getting lower, it was hard to get in and out of gear at times during deceleration, after the lights came on, it shifts smoothly.

I was also curious if any of you that are having throttle hang issues have any of the clutch sensors unplugged?

Just trying to throw out ideas.
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Old Aug 31, 2008 | 04:05 AM
  #353  
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Mine hangs (quite differently from most) but I believe one of my clutch sensors is unplugged. I bought the car how it is...I didn't unplug it, but I can start it without pushing the clutch pedal so I believe the one on the backside is unplugged.
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Old Aug 31, 2008 | 12:42 PM
  #354  
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From: Slc Utah aka SL,UT
Originally Posted by RyeLou
Which version of these is the best to use with the stock '05 ROM? We obviously get the in between version of them. (Based off 96940011)
There is no different version, you just modify the tables on your rom. The 05 & 06's have the throttle hang
Originally Posted by RyeLou
Mine hangs (quite differently from most) but I believe one of my clutch sensors is unplugged. I bought the car how it is...I didn't unplug it, but I can start it without pushing the clutch pedal so I believe the one on the backside is unplugged.
That's not going to make your throttle hang. Look under the dash and you can hook back up that clip on the clutch pedal you'll see it

Last edited by wesside; Aug 31, 2008 at 12:45 PM.
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Old Aug 31, 2008 | 12:53 PM
  #355  
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From: Michigan
Originally Posted by wesside

That's not going to make your throttle hang. Look under the dash and you can hook back up that clip on the clutch pedal you'll see it
I suppose I worded that weird. I know it has nothing to do with it. I was more just a statement in general. I'm not worried about it being unplugged...I'm more concerned with my "hang".
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Old Aug 31, 2008 | 07:23 PM
  #356  
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From: Kansas City
My clutch switch isn't unplugged and never has been.
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Old Sep 2, 2008 | 05:33 AM
  #357  
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From: Kansas City
Well, it was 60* this morning and my car idled fine. Great actually. I do still have a tiny bit of hang, but nothing that bothers me. I'm at work now, but I will post all my idle tables, cuz they seem to affect my hanging also, when I get home tomorrow.
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Old Oct 8, 2008 | 06:00 PM
  #358  
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From: Dallas, TX
Originally Posted by biggie5252
Well, it was 60* this morning and my car idled fine. Great actually. I do still have a tiny bit of hang, but nothing that bothers me. I'm at work now, but I will post all my idle tables, cuz they seem to affect my hanging also, when I get home tomorrow.
pics of tables?

I am now in the idle hang club.
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Old Oct 8, 2008 | 09:00 PM
  #359  
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From: Kansas City
My laptop is all kinds of messed up at the moment. I have a new harddrive coming tomorrow. When I get it up and running, I'll post them up.
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Old Oct 9, 2008 | 05:29 AM
  #360  
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I am still skeptical these tables are correct to fix this issue. Can anyone confirm this will truly fix the throttle hang issue? I mean my throttle hang happens from 3100rpm+ which this table, or any of the ISCV tables cover. I would really love to see my car not running the injectors over 3100rpm with 0 throttle.
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