TwinTurbo.NET: Nissan 300ZX forum - Sounds like either the throttle plates are too far closed,
Subject
Sounds like either the throttle plates are too far closed,
Posted by
Greg D. (Specialty-Z)
on May 01, 2014 at 6:16 PM
This message has been viewed
399
times.
In Reply To
The most frustrating and elusive idle problem ever
posted by Silens
on May 01, 2014 at 01:05 PM
Message
or you have carbon build up on the throttle bodies limiting the idle flow.
I would pull the throttle body hoses and clean.
If clean, crack the idle rest screws sightly, reset TPS and base idle.
Follow Ups
The most frustrating and elusive idle problem ever
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Silens
13:05:58 05/01/14
What kind of intake do you have? Stock, JWT, etc. (n/m)
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SirpriZ
15:45:14 05/01/14
Just stock with a filter, no airbox. (n/m)
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Silens
16:46:11 05/01/14
Does your set up use a low speed drivability hose? (n/m)
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SirpriZ
17:15:32 05/01/14
Not that I'm aware of.
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Silens
17:22:57 05/01/14
The problem that I had in mind would only occur if you have
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SirpriZ
17:23:38 05/01/14
nope, I wish lol.
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Silens
17:45:10 05/01/14
Sounds like either the throttle plates are too far closed, -
Greg D. (Specialty-Z)
18:16:48 05/01/14
Re: Sounds like either the throttle plates are too far closed,
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Silens
12:04:15 05/02/14
PCV system ok? (n/m)
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BarryGZX
19:25:37 05/01/14
Re: PCV system ok?
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Silens
12:04:51 05/02/14
You say Wideband.. Only One?
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Cjw3
11:53:39 05/02/14
Re: You say Wideband.. Only One?
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Silens
12:06:58 05/02/14
Re: Re: You say Wideband.. Only One?
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Cjw3
12:38:19 05/02/14
you should check your narrow bands
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Zvil (FL)
00:38:26 05/03/14
Re: you should check your narrow bands
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Cjw3
08:34:38 05/03/14
stock 02 sensors are used during closed loop only = idle (n/m)
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The Devils Z
19:42:23 05/03/14
Re: stock 02 sensors are used during closed loop only = idle
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Cjw3
23:13:17 05/03/14
you may be right -- it get it backwords - but they are only
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The Devils Z
11:25:39 05/04/14
I believe initial start up until prescribed temp is open
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SirpriZ
15:32:06 05/04/14
Idle is ALWAYS in Open Loop.. Read the Book (n/m)
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Cjw3
16:39:08 05/04/14
my Z must have an abnormal quirk then
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Zvil (FL)
16:52:50 05/05/14
"idle" is when the ECU sets the ignition timing at 15
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Cjw3
19:36:24 05/05/14
Depends on the tune.......
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Greg D. (Specialty-Z)
17:48:12 05/06/14
Well, my 3 NA's are open loop at idle.. I've watched
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Cjw3
20:42:14 05/06/14
If your running a factory tune...........
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Greg D. (Specialty-Z)
21:06:03 05/06/14
mind = blown...I bow to the sensei :) (n/m)
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Zvil (FL)
22:07:08 05/06/14
Very Nice..
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Cjw3
23:33:32 05/06/14
Look inside for post and u-tube by customer showing idle....
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Greg D. (Specialty-Z)
13:54:43 05/07/14
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