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2003-2009 Nissan 350Z

Car shuts off on same exit on parkway! Beacause of PopCharger?

Old Apr 1, 2006 | 03:01 PM
  #21  
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Originally Posted by imjdoggie
It is your MAF mass air flow sensor take it off and blow on it be very careful with it they are quirky!
+1

Its definately it, you might have not installed the popcharger properly, causing the car to dump heaps of fuel therefore stalling your engine.
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Old Apr 1, 2006 | 03:45 PM
  #22  
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one reason why i dont advocate the popcharger!
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Old Apr 1, 2006 | 08:47 PM
  #23  
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Hey this happend on one of my friends cars after he installed his intake, check all of your fittings and make sure they are correct. Right behind his MAF sensor the connection between his maf and tubing was off a little bit causing not enough gas to get there and it die out. Maybe this will help hope
later
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Old Apr 1, 2006 | 09:35 PM
  #24  
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seems like everyone i've seen post about this problem, and there have been tons of them (use search function; you have over 200 posts) had it happen while driving in neutral at freeway speeds. who tf does that? where did you learn to drive like that? it must be related to the recent poll about the average age of the z driver.
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Old Apr 2, 2006 | 12:15 AM
  #25  
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Originally Posted by Navygold
You guys are really running this coasting in neutral thing into the ground.

We're talking about driving on the street under normal conditions, not trying to obtain optimal performance on the track. The street is NOT the place for high-performance driving. Yes, downshifting while braking does normally decrease your stopping distance. If you NEED to do this on a regular basis, though, you're driving too fast for conditions on the street. As far as failing a driving test in Holland goes, I'm happy for you. Congratulations on being European and more enlightened than all us dirty Americans. Before you get to comfy in your high throne, though, the past tense of "teach" is "taught," not "teached."

So why don't we all just move past this coasting vs. running through the gears thing? I dunno...maybe get back to this guy's question.

And what is my opinion on this guy's problem? Reset the ECU and you shouldn't have this problem again.
The poster you are mocking is from Holland where they speak Dutch.He's got pretty good English considering its his second laguage.
A little grammatical error compared to a pretty stupid one while driving at speed seems to annoy you more? Weird!
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Old Apr 2, 2006 | 04:08 AM
  #26  
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Hmmm, Navygold thanks for teaching stupid foreigner correct English, but I bet my Dutch is better than yours.

My friend from Scotland thanks for your support.

The sudden drop of intake vacuum when shifting to neutral will cause engine stall. The MAF sensor is calibrated to determine the airflow in the inlet routing before the throttle valve. A closed airbox (the standard one) will create MORE airspeed at low rpm (idling) than the open pop-charger.
MAF sensor detecting value is programmed in combination of RPM, throttle valve opening etc. Recalibration the MAF sensor is the basic solution.
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Old Apr 2, 2006 | 04:48 AM
  #27  
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Originally Posted by Mang
The sudden drop of intake vacuum when shifting to neutral will cause engine stall. The MAF sensor is calibrated to determine the airflow in the inlet routing before the throttle valve. A closed airbox (the standard one) will create MORE airspeed at low rpm (idling) than the open pop-charger.
MAF sensor detecting value is programmed in combination of RPM, throttle valve opening etc. Recalibration the MAF sensor is the basic solution.
See? Maybe if you had said this in your first post, we wouldn't be in this little stupid American vs. stupid European bash-session. This is by far the most useful post related to this guy's problem. Why didn't you post this first? What made you feel the need to tell him and others that coasting in neutral was bad and that they would fail a driving test in Europe for doing so?
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Old Apr 2, 2006 | 06:05 AM
  #28  
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Good points; Now i'm a little worried about the popcharger, but eh, I was never one to just put it in neutral and coast anyway.
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Old Apr 2, 2006 | 06:50 AM
  #29  
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Originally Posted by Navygold
See? Maybe if you had said this in your first post, we wouldn't be in this little stupid American vs. stupid European bash-session. This is by far the most useful post related to this guy's problem. Why didn't you post this first? What made you feel the need to tell him and others that coasting in neutral was bad and that they would fail a driving test in Europe for doing so?
I think you're being a little over sensitive. ' don't think Mang was out to bash the US.He was merely trying to say that if you did that in any driving test you'd fail because it's bad practice to do so.You were the one who took the aggressive stance with this Im afraid.

Anyway,as said any many prior threads the ECU doesn't like coasting in neutral at any great speeds, so guess what? Don't do it, end of story!!
Anyone who wanted fuel economy shouldn't have bought a 3.5L engined car
in the first place

Can we get back to a snuggly global forum now? please?
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Old Apr 2, 2006 | 08:59 AM
  #30  
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k i checked the connections and they looked good. I am disconnecting the neg battery cable for an hour before work to see if they resets the ecu and solves the problem
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Old Apr 2, 2006 | 02:16 PM
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.

Last edited by roast; Apr 2, 2006 at 03:55 PM.
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Old Apr 2, 2006 | 02:27 PM
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Originally Posted by thrill350z
k i checked the connections and they looked good. I am disconnecting the neg battery cable for an hour before work to see if they resets the ecu and solves the problem
Thrill, could you keep us updated if this solves your problem? I am going to install the popcharger soon and would like to know. THanks kindly.
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Old Apr 2, 2006 | 03:24 PM
  #33  
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I had competent people install the JWT pop-charger. Haven't tried coasting. I thought it was gay.
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Old Apr 2, 2006 | 03:59 PM
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yea, I am going to try to coast on the way home tonight on the exit of the parkway again and see if it happens again. I disconnected the neg battery cable for about an hour. if this didn't reset the ecu, what's the other way to reset the ecu?
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Old Apr 2, 2006 | 04:46 PM
  #35  
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Originally Posted by thrill350z
so how do I get my car not to shut off while I'm driving on the parkway?
I've had this happen to me probably 5 or 6 times since I put on my popcharger. It confuses the MAF because you are going from throttle to nothing quickly. I just got used to waiting a little while and letting 6th gear hold me back a little bit before I shifted into neutral. Now (probably been about 8 or 9 months) my ECU seems to have adjusted to it. I haven't had it happen for about 5 months or so. It will eventually get used to it but just change your driving habits a little bit and you'll be fine. It was scary the first few times it happened though. Also, I believe you can go to JWT's website and they have a way to fix this problem now, but mine went away.
Fletch
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Old Apr 2, 2006 | 05:43 PM
  #36  
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after unplugging the neg battery cable for an hour I thought the ecu was reset bc my tripometer read 0 and my radio stations were lost. but on my way home I went up to 70mph then coasted (stick in N) and the car still shut off. maybe I didn't reset the ecu properly? maybe there's no solution for this problem?
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Old Apr 2, 2006 | 06:25 PM
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My god man, don't coast in neutral at 70 mph. Not only do you increase the amount of time it takes to stop (you aren't engine braking), but also if you have to do an emergency manuever valuable seconds are wasted bringing the car's RPMs back up to speed, plus you have to shift and all that jazz. Additionally, you aren't saving any gas by putting the car in neutral, just coast in gear and let off the gas. When you do that the car's wheels are turning the engine, and the fuel injectors turn off, or damn close to off. If you are just coasting around in Neutral, the fuel is turning the engine at whatever the idle RPM is.
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Old Apr 2, 2006 | 06:46 PM
  #38  
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ok.... but I've never had this problem until the install of the popcharger
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Old Apr 2, 2006 | 06:50 PM
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Originally Posted by thrill350z
ok.... but I've never had this problem until the install of the popcharger
Then it must be the popcharger...since that is the only thing you changed. I think most of the people on this thread came to that conclusion way before me. Hell, I don't even drive a Z, so I can't be of much help, but when I read the thread about coasting in 70...I just had to say something.
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Old Apr 2, 2006 | 06:58 PM
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Originally Posted by Travisf@i-a-v.c
I had competent people install the JWT pop-charger. Haven't tried coasting. I thought it was gay.
If you can't install the pop-charger on your own then you are gay.
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