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| Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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09-07-2006, 01:21 PM
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#1 |
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Zilvia Junkie
 Join Date: May 2003
Location: Cerritos, CA
Age: 38
Posts: 504
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weird vacuum problem or not
not sure if its a vacuum leak, but at idle my vacuum is at -15. when i press the throttle it goes to -5 (which is normal) but then goes back down to like -10. doesnt matter how much i open the throttle it always goes back like -7psi ex. i press throttle it goes to like 0 but then drops back down to -7. if it is a vacuum leak it would only matter if the throttle is closed(right?) so since i get more vacuum when the throttle is open, what does that mean? its really messing up my car and i cant figuire it out. let me know thanks!
t3 turbo sr smic walbro 255 460 inj bov
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09-07-2006, 08:48 PM
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#2 | |
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Post Whore!
 
Join Date: Jan 2005
Location: Virginia Beach, Va
Age: 37
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sounds like u said, a boost leak, search for the thread that shows u how to make a diy boost leak tester and try to figure out where its leaking from.
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09-07-2006, 09:47 PM
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#4 |
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Zilvia Junkie
Join Date: May 2003
Location: Cerritos, CA
Age: 38
Posts: 504
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well the thing is... its not when im boosting.. cause i CAN boost no problem.. so its not a boost leak... my gauge is fine and its a autometer..
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