TwinTurbo.NET: Nissan 300ZX forum - Are you running 2.5" Intake Piping?
Subject
Are you running 2.5" Intake Piping?
Posted by
jschrauwen
on May 24, 2012 at 8:57 AM
This message has been viewed
151
times.
In Reply To
Poor sealing Z1 tb's and how they effect idle control...
posted by Evan_Wright (Ca)
on May 23, 2012 at 09:01 PM
Message
The vaccum line for the AAC off of the 2.5" piping may be getting too much air due to better breathing. Try placing a restrictor in that AAC vaccum line that runs along the driver's side of the plenum to reduce airflow to the AAC.
Follow Ups
Poor sealing Z1 tb's and how they effect idle control...
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Evan_Wright (Ca)
21:01:01 05/23/12
Does it surge more when cold, and smooth out when warmed up?
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BoneZ (MD)
21:34:16 05/23/12
Tps sits at .38 volts and shows closed tps "on". I can't
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Evan_Wright (Ca)
22:02:20 05/23/12
And when the engines cold it does surge pretty
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Evan_Wright (Ca)
22:03:34 05/23/12
Unfortunately I swapped out the entire upper plenum which
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BoneZ (MD)
22:16:24 05/23/12
Re: And when the engines cold it does surge pretty
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WazTTed
15:51:46 05/24/12
You might have to grind a bit of the plastic tab away
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Stadsport (PHX)
02:26:08 05/24/12
I've all ready slotted my tps and grinded some plastic away.
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Evan_Wright (Ca)
08:03:55 05/24/12
Have you tried to set TPS between 0.4V and 0.5V?
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jschrauwen
08:52:36 05/24/12
I can and have had it at around .42 volts but honestly in
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Evan_Wright (Ca)
11:01:54 05/24/12
Re: Poor sealing Z1 tb's and how they effect idle control...
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MaxxAction
23:00:55 05/23/12
Yes, I sync'd them before dropping the motor in. (n/m)
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Evan_Wright (Ca)
23:17:51 05/23/12
Re: Poor sealing Z1 tb's and how they effect idle control...
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MaxxAction
23:05:34 05/23/12
Re: Poor sealing Z1 tb's and how they effect idle control...
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Stadsport (PHX)
02:22:59 05/24/12
Yes, I've tried going up and down on the percentages and
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Evan_Wright (Ca)
07:57:05 05/24/12
Then I agree with you on both points/ideas
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Stadsport (PHX)
13:41:46 05/24/12
Yes I have. I actually did it a second time before
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Evan_Wright (Ca)
14:13:46 05/24/12
Re: Then I agree with you on both points/ideas
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MaxxAction
19:03:32 05/24/12
I have similar issue and believe it to be TB related.
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Boosted1
06:11:58 05/24/12
Additionally, my TPS idle voltage is at 0.45 volts
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Boosted1
06:15:50 05/24/12
Are you running 2.5" Intake Piping? -
jschrauwen
08:57:35 05/24/12
NEGATIVE. Do NOT restrict the hose to the IACV - the
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Ash's Z
09:38:52 05/24/12
You've got mail :-) (n/m)
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ConVerTT
09:42:15 05/24/12
FALSE!!! It is "pull" not "push" at idle ....
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ConVerTT
09:41:29 05/24/12
Re: FALSE!!! It is "pull" not "push" at idle ....
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jschrauwen
11:15:01 05/24/12
Do you not realize your advice is not wanted here?
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Aqualung
14:57:30 05/24/12
Re: Do you not realize your advice is not wanted here?
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ZPHILE
22:16:52 05/24/12
your sig is too long
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Adam (NoVA)
12:48:58 05/25/12
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