swirl control valve... wat is the purpose of this...

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06-23-2006, 06:48 PM

KabirUTA13

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swirl control valve... wat is the purpose of this...

i was checking mine... one day it moved wen the engine rpm was high around 3 grand or so... doesnt do it even if u redline... wat is its purpose...

06-23-2006, 06:49 PM

KabirUTA13

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edit... heres the theory behind it
This system has a swirl control valve in the intake passage of each
cylinder.
While idling and during low engine speed operation, the swirl control
valve closes. Thus the velocity of the air in the intake passage
increases, promoting the vaporization of the fuel and producing a
swirl in the combustion chamber.
Because of this operation, this system tends to increase the burning
speed of the gas mixture, improve fuel consumption, and
increase the stability in running conditions.
Also, except when idling and during low engine speed operation,
this system opens the swirl control valve. In this condition, this
system tends to increase power by improving intake efficiency via
reduction of intake flow resistance, intake flow.
The solenoid valve controls swirl control valve’s shut/open condition.
This solenoid valve is operated by the ECM.

06-24-2006, 03:30 AM

njmaxseltd

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The swirl valves only operate while the engine is warming up.
Once the engine reaches normal operating temp, they remain open.

06-24-2006, 06:13 AM

frankd121

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Quote:

Originally Posted by KabirUTA13

This is correct. The primary purpose of the swirl valve is to promote complete vaporization of the fuel in the combustion chamber at slow engine speeds.

07-12-2006, 08:02 PM

Craig_0530

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I have search long and hard, and haven't found anyone that has replace this. My Max has blown this code (P1130 - Swirl Control Valve). Has anyone encountered this code before, if so how did you fix it? I have looked on several websites and have yet to find any info on the swirl valve. Any and all help will be greatly appreciated.

07-12-2006, 09:34 PM

KabirUTA13

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if ur still available... i get u some info...

07-12-2006, 09:36 PM

KabirUTA13

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SEF272X
COMPONENT DESCRIPTION
NFEC0523S02
Swirl Control Valve Control Solenoid Valve
NFEC0523S0201
The swirl control valve control solenoid valve responds to signals
from the ECM. When the ECM sends an ON (ground) signal, the
solenoid valve is bypassed to apply intake manifold vacuum to the
swirl control valve actuator. This operation closes the swirl control
valve. When the ECM sends an OFF signal, the vacuum signal is
cut and the swirl control valve opens.
CONSULT-II Reference Value in Data Monitor
Mode
NFEC0524
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
SWRL CONT S/V I Engine speed: Idle
Engine coolant temperature is
between 15°C (59°F) to 50°C
(122°F).
ON
Engine coolant temperature is
above 55°C (131°F).
OFF
On Board Diagnosis Logic
NFEC0526
Malfunction is detected when
(Malfunction A) An improper voltage signal is sent to ECM through
swirl control valve control solenoid valve,
(Malfunction B) The vacuum signal is not sent to swirl control
valve under specified driving conditions, even though swirl control
valve control solenoid valve is ON,
(Malfunction C) The vacuum signal is sent to swirl control valve
even though swirl control valve control solenoid valve is OFF.
Possible Cause
NFEC0527
MALFUNCTION A
NFEC0527S01
I Harness or connectors
(The swirl control valve control solenoid valve circuit is open or
shorted.)
I Swirl control valve control solenoid valve
MALFUNCTION B
NFEC0527S02
I Harness or connector
(The swirl control valve control solenoid valve circuit is open.)
I Swirl control valve control solenoid valve
I Intake system
(Intake air leaks)
I Hoses and tubes between intake manifold, vacuum tank and
swirl control valve actuator
I Swirl control valve actuator
I Swirl control valve control vacuum check switch
I Mass air flow sensor
I Crankshaft position sensor (REF)
I Throttle position sensor