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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: nuts4hotwheels on June 01, 2008, 07:27:24 PM

Title: EGR Code Help
Post by: nuts4hotwheels on June 01, 2008, 07:27:24 PM
My check engine light came on and I had the codes read.  The egr code came up.  I automatically assumed that the EGR valve was clogged.  I bought the gasket and pulled it off put it was pretty clean of carbon and the plunger moves by hand.  I think that it is not getting the proper vacuum to the EGR.  I checked all of the vacuum lines for damage and found nothing. 

Where should I start looking next?   
Title: Re: EGR Code Help
Post by: Rhinoman on June 02, 2008, 04:38:36 AM
You need to check that the Vacuum Solenoid Valve is working. Put 12V across it and see if it opens.
Title: Re: EGR Code Help
Post by: nuts4hotwheels on June 02, 2008, 04:45:48 AM
You need to check that the Vacuum Solenoid Valve is working. Put 12V across it and see if it opens.

Forgive me for my ignorance.  Where is the solenoid located?
Title: Re: EGR Code Help
Post by: Drone637 on June 02, 2008, 03:02:41 PM
On the front of your valve cover.  You should have a vacuum diagram under your hood that shows how everything is connected.

Also, the EGR error light will come on if tube is clogged, not the EGR Valve itself.  You can find a few threads on cleaning it with the Search feature.
Title: Re: EGR Code Help
Post by: swill4wd on June 17, 2008, 10:10:18 PM
The EGR passage is most likely clogged where the pipe goes into the intake manifold.  Disconnect the pipe and put a small (6") piece of 1/8" cable with the end slightly frayed into a drill,  to ream out the junk built up in the passage in the intake manifold.......
Title: Re: EGR Code Help
Post by: Drone637 on June 18, 2008, 11:02:01 AM
That is a neat way to do it.  I just used some bailing wire and time.  And a lot of carb cleaner.