Z31/SENSORS/egrvalve php - Revision history

CleanupBot: Rewrite 6 dev.z31library.com link(s) to z31library.com

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Rewrite 6 dev.z31library.com link(s) to z31library.com

← Older revision		Revision as of 22:53, 20 October 2026
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	{{ImportedFrom\|site=Xenonzcar\|title=Z31 EGR Valve\|url=https://~~dev.~~z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|archive=https://~~dev.~~z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|fetched=2026-05-15}}		{{ImportedFrom\|site=Xenonzcar\|title=Z31 EGR Valve\|url=https://z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|archive=https://z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|fetched=2026-05-15}}

	== Z31 EGR Valve ==		== Z31 EGR Valve ==

	https://~~dev.~~z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.jpg		https://z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.jpg

	The '''EGR Control Valve''' controls the volume of exhaust gas led into the intake manifold through a vertical movement of a taper valve connected to a diaphragm that receives vacuum in response to the opening of the throttle. The chart below will explain when the EGR valve is opened.		The '''EGR Control Valve''' controls the volume of exhaust gas led into the intake manifold through a vertical movement of a taper valve connected to a diaphragm that receives vacuum in response to the opening of the throttle. The chart below will explain when the EGR valve is opened.
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	=== Diagnosis ===		=== Diagnosis ===

	https://~~dev.~~z31library.com/xenonzcar_archive/z31/images/Sensors/egrcheckthumb.jpg		https://z31library.com/xenonzcar_archive/z31/images/Sensors/egrcheckthumb.jpg

	=== Installation ===		=== Installation ===

	https://~~dev.~~z31library.com/xenonzcar_archive/z31/SENSORS/egrvalveinstallation.jpg		https://z31library.com/xenonzcar_archive/z31/SENSORS/egrvalveinstallation.jpg

	'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.		'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.
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	=== Sources Used ===		=== Sources Used ===

	* [https://~~dev.~~z31library.com/xenonzcar_archive/z31/z31fsm.php 1984-1988 Nissan 300ZX Factory Service Manual]		* [https://z31library.com/xenonzcar_archive/z31/z31fsm.php 1984-1988 Nissan 300ZX Factory Service Manual]

	[[Category:Imported from Xenonzcar]]		[[Category:Imported from Xenonzcar]]

CleanupBot: Restore Sources Used dropped by import (verbatim from archive)

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Restore Sources Used dropped by import (verbatim from archive)

← Older revision		Revision as of 22:13, 20 October 2026
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	'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.		'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.

			=== Sources Used ===

			* [https://dev.z31library.com/xenonzcar_archive/z31/z31fsm.php 1984-1988 Nissan 300ZX Factory Service Manual]

	[[Category:Imported from Xenonzcar]]		[[Category:Imported from Xenonzcar]]

CleanupBot: Rebuild 1 table(s) as wikitable from archived source; fix column alignment

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	The signal from the '''ECCS control unit''' is sent to the EGR control solenoid valve, which cuts the vacuum line for the EGR control valve when any of the following conditions are met:		The signal from the '''ECCS control unit''' is sent to the EGR control solenoid valve, which cuts the vacuum line for the EGR control valve when any of the following conditions are met:

	\| Condition Present \| EGR Control Solenoid Position \| EGR System Operation \|		{\| class="wikitable"
	\|-~~--\|---\|---\|~~		! Condition Present
	\| Engine Starting \| On \| Does Not Function \|		! EGR Control Solenoid Position
	\| Throttle Valve Switch Open \| \|\|		! EGR System Operation
	\| Low Engine Temperature \| \|\|		\|-
	\|		\| Engine Starting
	Engine Speed Below 900 RPM Above 3200 RPM \|		\| rowspan="4" \| On
	\|\|		\| rowspan="4" \| Does Not Function
	\| Except Above \| Off \| Operates \|		\|-
			! colspan="3" style="text-align:left" \| Throttle Valve Switch Open
			\|-
			! colspan="3" style="text-align:left" \| Low Engine Temperature
			\|-
			! colspan="3" style="text-align:left" \| Engine Speed<br />Below 900 RPM<br />Above 3200 RPM
			\|-
			\| Except Above
			\| Off
			\| Operates
			\|}

	=== Diagnosis ===		=== Diagnosis ===

XenonzcarImporter: Inline image refs: rewrite to local archive; clean empty image artifacts

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Inline image refs: rewrite to local archive; clean empty image artifacts

← Older revision		Revision as of 18:01, 16 May 2026
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	{{ImportedFrom\|site=Xenonzcar\|title=Z31 EGR Valve\|url=~~http~~://~~www~~.~~xenonzcar~~.com/z31/SENSORS/egrvalve.php.html\|archive=https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|fetched=2026-05-15}}		{{ImportedFrom\|site=Xenonzcar\|title=Z31 EGR Valve\|url=https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|archive=https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html\|fetched=2026-05-15}}

	== Z31 EGR Valve ==		== Z31 EGR Valve ==

	~~[http~~://~~www~~.~~xenonzcar~~.com/z31/SENSORS/egrvalve.jpg ~~image: EGR Valve (Nissan Factory Service Manual)]~~		https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.jpg

	The '''EGR Control Valve''' controls the volume of exhaust gas led into the intake manifold through a vertical movement of a taper valve connected to a diaphragm that receives vacuum in response to the opening of the throttle. The chart below will explain when the EGR valve is opened.		The '''EGR Control Valve''' controls the volume of exhaust gas led into the intake manifold through a vertical movement of a taper valve connected to a diaphragm that receives vacuum in response to the opening of the throttle. The chart below will explain when the EGR valve is opened.
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	=== Diagnosis ===		=== Diagnosis ===

	~~[http~~://~~www~~.~~xenonzcar~~.com/z31/images/Sensors/egrcheckthumb.jpg ~~image: EGR check procedure (from Nissan Factory Service Manual)]~~		https://dev.z31library.com/xenonzcar_archive/z31/images/Sensors/egrcheckthumb.jpg

	=== Installation ===		=== Installation ===

	~~[http~~://~~www~~.~~xenonzcar~~.com/z31/SENSORS/egrvalveinstallation.jpg ~~image: EGR Valve Installation Diagram (Nissan Factory Service Manual)]~~		https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalveinstallation.jpg

	'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.		'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.

	[[Category:Imported from Xenonzcar]]		[[Category:Imported from Xenonzcar]]

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← Older revision	Revision as of 06:38, 16 May 2026
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{{ImportedFrom|site=Xenonzcar|title=Z31 EGR Valve|url=http://www.xenonzcar.com/z31/SENSORS/egrvalve.php.html|archive=https://dev.z31library.com/xenonzcar_archive/z31/SENSORS/egrvalve.php.html|fetched=2026-05-15}}

== Z31 EGR Valve ==

[http://www.xenonzcar.com/z31/SENSORS/egrvalve.jpg image: EGR Valve (Nissan Factory Service Manual)]

The '''EGR Control Valve''' controls the volume of exhaust gas led into the intake manifold through a vertical movement of a taper valve connected to a diaphragm that receives vacuum in response to the opening of the throttle. The chart below will explain when the EGR valve is opened.

In the Exhaust Gas Recirculation System, some of the exhaust gas is returned to the combustion chamber to lower the flame temperature during combustion. This results in a reduction of nitrogen oxide (NOx) density in the exhaust gas.

When the EGR Control Valve is open, some of the exhaust gas is led from the exhaust manifold to the EGR tube. The exhaust gas is then regulated by the EGR valve and introduced into the intake manifold.

''WARNING'' - Do this modification at your own risk. We Are not responsable for any issues of your own doing.

=== Exhaust Gas Recirculation (EGR) System Operation ===

The signal from the '''ECCS control unit''' is sent to the EGR control solenoid valve, which cuts the vacuum line for the EGR control valve when any of the following conditions are met:

| Condition Present | EGR Control Solenoid Position | EGR System Operation |
|---|---|---|
| Engine Starting | On | Does Not Function |
| Throttle Valve Switch Open | ||
| Low Engine Temperature | ||
|
Engine Speed Below 900 RPM Above 3200 RPM |
||
| Except Above | Off | Operates |

=== Diagnosis ===

[http://www.xenonzcar.com/z31/images/Sensors/egrcheckthumb.jpg image: EGR check procedure (from Nissan Factory Service Manual)]

=== Installation ===

[http://www.xenonzcar.com/z31/SENSORS/egrvalveinstallation.jpg image: EGR Valve Installation Diagram (Nissan Factory Service Manual)]

'''Installation Tip:''' When installing the EGR valve and its guide tube, take care to ensure the port is pointing toward the rear of the engine. This positioning is crucial for optimal distribution efficiency of the exhaust gases into the intake manifold.

[[Category:Imported from Xenonzcar]]