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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

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Old 01-26-2006, 05:49 AM   #1 (permalink)
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EGR Removal On 22re

Guys,
Not a big poster but I've been around a while. I own a 89 4RUNNER 22RE. Got a quick question:

Has anyone here attempted to remove their EGR system on the 22re?
What was the results?

What I found Searching:
Running rich.
Pinging due to high cylinder temps.
ECU retards timing due to ping.
....but I seriously doubt EGR removal is going to cause ecu to go retarded. I'll accept my bad gas milage, but pinging I question..... thoughts? Experience?

My Story
I blew a head gasket last week so I sent the head off to the shop for a valve job, seals, porting, ect.. I had mention to my buddy about wanting to get rid of the EGR system, and he took my EGR pipe and cut it up to make block off plates. So now I have no choice. I'll let everyone know the results.

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An unhealthy 7MGTE and 22RE obbsession

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1989 4runner 22re 8" Suspension IFS 22RE
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Old 01-26-2006, 05:51 AM   #2 (permalink)
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Also looking for some tips to simplify the maze of vacuum lines
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An unhealthy 7MGTE and 22RE obbsession

Projects:
1988 Supra NA->Turbo
1989 4runner 22re 8" Suspension IFS 22RE
1989 RX-7 getting a LS1 T56 swap =)
1989 17' Rinker bowrider Inboard mercruiser
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Old 01-26-2006, 06:03 AM   #3 (permalink)
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Oh ya... forgot to mention I decked the head .015 which sould get me an extra .5 compression. So if the egr removal does cause pingiing (which I doubt). I will know first thing.
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An unhealthy 7MGTE and 22RE obbsession

Projects:
1988 Supra NA->Turbo
1989 4runner 22re 8" Suspension IFS 22RE
1989 RX-7 getting a LS1 T56 swap =)
1989 17' Rinker bowrider Inboard mercruiser

Last edited by SupraSport; 01-26-2006 at 06:32 AM.
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Old 01-26-2006, 08:56 AM   #4 (permalink)
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Any one?
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An unhealthy 7MGTE and 22RE obbsession

Projects:
1988 Supra NA->Turbo
1989 4runner 22re 8" Suspension IFS 22RE
1989 RX-7 getting a LS1 T56 swap =)
1989 17' Rinker bowrider Inboard mercruiser
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Old 01-26-2006, 10:01 AM   #5 (permalink)
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do a search of "egr removal" you should find some good stuff.
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Old 01-26-2006, 02:57 PM   #6 (permalink)
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Removing the EGR will cause pinging. The reason is that the recycled gas slows the flame front inside the cylinder, thus increasing the apparent octane rating of the fuel.
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Old 01-26-2006, 04:30 PM   #7 (permalink)
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Darn...... I guess I'm going to the junk yard this weekend......That pipe is a bitch to get off too :cry:

I gave him the egr pipe because he said he make some plates for me, I didn't think he was going to hack it all up. Oh well, thanks for the help
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An unhealthy 7MGTE and 22RE obbsession

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1988 Supra NA->Turbo
1989 4runner 22re 8" Suspension IFS 22RE
1989 RX-7 getting a LS1 T56 swap =)
1989 17' Rinker bowrider Inboard mercruiser
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Old 01-26-2006, 04:32 PM   #8 (permalink)
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Quote:
Originally Posted by InternetRoadkill
Removing the EGR will cause pinging. The reason is that the recycled gas slows the flame front inside the cylinder, thus increasing the apparent octane rating of the fuel.
Makes sense, thanks.

Anyone experience this?

BTW- I did several searches on this and listed what I found at the top.
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An unhealthy 7MGTE and 22RE obbsession

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1988 Supra NA->Turbo
1989 4runner 22re 8" Suspension IFS 22RE
1989 RX-7 getting a LS1 T56 swap =)
1989 17' Rinker bowrider Inboard mercruiser
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Old 01-26-2006, 06:01 PM   #9 (permalink)
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I have a used egr valve I will sell you. It needs cleaning. I don't know how you clean the carbon out, but it's yours for $35.00 shipped through a paypal buy. If someone else hapens to want to pay more I will sell it to them.
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Old 01-27-2006, 07:50 AM   #10 (permalink)
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Can you avoid the pinging by running 93 octane fuel? Or does it change it more than that?
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Old 01-27-2006, 04:33 PM   #11 (permalink)
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i'd rather go the cheap route and buy the cheap gas, which is .20 a gallon less than 92 here.

the people who say removing the EGR on a 22RE will improve mileage and power are ignorant IMHO. a properly working EGR will actually improve gas mileage, and will be closed under hard acceleration to not rob power where it is needed.

now, on something like my 20R/22R, it was removed for simplicity's sake, since i don't have to pass emissions, and when i bought the engine to rebuild, it didn't come with most of the smog stuff. only gets about 16mpg though
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Old 01-27-2006, 04:33 PM
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