Blocked off EGR

[Icicle]

i know there’s a ton of these around, but thought I’d share my symptoms and solution for everyone so the next person who comes along has yet another EGR post.

I was experiencing no cold start idle up, and 400 rpm or so rough idle when warm.

I replaced the egr modulator and that fixed it for about 2 months, and then it returned.

I unbolted the EGR valve, without unbolting the pipe that goes to the head, and slid it off the studs. I made a small plate to block it off and where it goes into the intake and JB welded the gasket to the block off plate I made to avoid vacuum leaks, and then bolted the EGR back on. (Mine was stuck open I believe)

I then clipped the sensor side wires of the temp sensor and wired them in a loop and pluggged it back in.

No CEL, and idle is beautiful at 625 RPM.

Hope it’s helpful to someone after the help this forum has been

Kevin

 

[uscmas412]

What year is your 80?

 

[Icicle]

Good call out

93

 

[Rifleman]

Icicle, just in case you haven't already done it, most members who do the EGR delete also plug off the vacuum lines running to the modulator too.

 

[Icicle]

Icicle, just in case you haven't already done it, most members who do the EGR delete also plug off the vacuum lines running to the modulator too.

I did, forgot to mention that also. Thanks!

 

[ThomasMore66]

Do you notice an increase in hp? Still running cats?

 

[Icicle]

Do you notice an increase in hp? Still running cats?

Update. I got about .75 MPG better last tank, but it’s only one tank (although my commute is pretty consistent). Drivability is far better (smoother) but remember mine was stuck open.

No change in power, still running cats.

 

[TGJ80]

hi all, I'm planning on blocking off my EGR with a plate this weekend. can somebody post pics of what they did? I don't have the experience to do the job just based on the comments. Thanks

 

[TGJ80]

PS - this is for a 1997 J80

 

[Icicle]

PS - this is for a 1997 J80

I dont know how well this will work on a 97 (OBDII) Rig..... I would doubt it will at all.

 

[LC4LIFE]

hi all, I'm planning on blocking off my EGR with a plate this weekend. can somebody post pics of what they did? I don't have the experience to do the job just based on the comments. Thanks

Lots of good reading here, especially in the two threads mentioned in the first part of the post.

EGR Temp Sensor Test Plug

Hi Everyone, I figured I would post up a small project I have been pulling together mainly to satisfy my curiosity about EGR bypass, testing, and making it look good. Many of us have experienced the P0401 code and normally it is an EGR related issue. As you will come to find out, especially...

forum.ih8mud.com

 

[TGJ80]

Thanks, had seen this post and ordered one of the plugs. May be missing something but still can't figure out how to install block off plate. Can't see any pics about that.

 

[LC4LIFE]

Thanks, had seen this post and ordered one of the plugs. May be missing something but still can't figure out how to install block off plate. Can't see any pics about that.

@NLXTACY has some very nice keychains, you should search for those.

 

[TGJ80]

Got it. They look extremely durable and capable of holding many keys.

Still looking for a picture of how this keychain is used properly!

 

[Cruzilla]

Plug works great on my 95!

 

[TGJ80]

Do you have any pics of how keychain is installed?

 

[69LC]

I have blocked the intake and exhaust passages on our 95. I used some vacuum block off caps on the nipples, and now I’m down for surgery recovery.

I saved this thread to my phone notes app so I can have my son help me finish things up later. Please post lots of pics.

 

[TGJ80]

I'm looking for pics myself so that I can do the mod

 

[mtrdud]

Read this

My overdue PM journey. Picture heavy.

I have been accumulating boxes and boxes of parts I have accumulated the last year and a half from Dan and Onur that I am finally getting around to installing, along with doing some other cleaning up and refreshening to the old Mountain Goat. The game plan: New fuel filter, new fuel sock, new...

forum.ih8mud.com

 

[TGJ80]

Thanks, good stuff