EGR what does this control, I have Code 71

simpsons721 · 05-07-2008, 01:53 PM

I have code 71 egr

what does the egr control?

if i fix this what will my car do better?

my car currently reads as low oil pressure when running after 5 minutes and feels it runs hot but gauge reads normal

please help

ozziesironmanoffroad · 05-07-2008, 03:09 PM

71 is egr. its clogged. if you are in a SMOG area, you wont pass because you will be putting out too much NOx. i cleaned my egr out,l but i dont have the equipment to test it, i only have one more free smog test.

js9924 · 05-07-2008, 05:33 PM

First of all you should search because there are a thousand threads about this topic try "code 71". anyway...

It is most likely just the EGR temp sensor you can fool the ECU by putting a 10k resistor in the connector across the terminals. I would also recommend cleaning the EGR valve and the filter in the EGR vacuum modulator.

Click on the link in my sig and you can see my egr removal write-up. In there you will see a pic of the resistor installed.

943kgt · 05-07-2008, 07:54 PM

I had a code 71 when i first bought my truck, ended up just being a vacuum line blown off my egr modulator, just take a look at your vacuum routing diagram under your hood and make sure your lines are routed correctly. Then go from there.

Alex 400 · 05-07-2008, 08:13 PM

Quote:

Originally Posted by ozziesironmanoffroad

71 is egr. its clogged. if you are in a SMOG area, you wont pass because you will be putting out too much NOx. i cleaned my egr out,l but i dont have the equipment to test it, i only have one more free smog test.

how do you clean the egr valve? I have a similar problem

ozziesironmanoffroad · 05-07-2008, 08:15 PM

take it out and spray it with carb cleaner

Alex 400 · 05-07-2008, 08:21 PM

Quote:

Originally Posted by ozziesironmanoffroad

take it out and spray it with carb cleaner

hell, i can do that! Thanks. I figured it would be something like that. i will do that this weekend when i actually have sometime haha

ozziesironmanoffroad · 05-07-2008, 08:27 PM

and test the vacuum

Alex 400 · 05-07-2008, 08:45 PM

Quote:

Originally Posted by ozziesironmanoffroad

and test the vacuum

you mean to see if the egr is recieving vacuum or if the egr reacts to vacuum. I ahve tested the EGR to see if would open with a vacuum pump and the motor stumbled pretty hard until i released the vacuum.

ozziesironmanoffroad · 05-07-2008, 09:03 PM

did u check the EGR filter?

Alex 400 · 05-07-2008, 09:14 PM

Quote:

Originally Posted by ozziesironmanoffroad

did u check the EGR filter?

i am sorry, i don't know what that is nor have i have ever heard of such a thing? where is it?

ozziesironmanoffroad · 05-07-2008, 09:23 PM

not sure, im not the engine expert. as i said im having a problem passing smog. i know theres a EGR filter, i just dunno where it is. might want to ask deathcougar.. guys not human

Alex 400 · 05-07-2008, 09:46 PM

alright will do thanks. i think i am going to try and blow it out with some carb cleaner and compressed air. I think i will also use the vacuum pump to hold the valve open to get some of cleaner inside of it.

904_runner · 05-07-2008, 10:02 PM

The black part on the 3.0's that have the leters q, p, and r on it. Its up front near the timing belt cover, near the spark plugs! In that area, where all the vacuum lines go in.

There is a little filter in there and i belive it connects to the egr

94toy4x4fever · 05-07-2008, 10:24 PM

whats the best way to clean the filter? Just blow it out with some air?

904_runner · 05-07-2008, 10:28 PM

buy a new one. They are tiny maybe the size of an old half dollar.

Besides, if it is dirty as mine, blowing air isn't going to do anything.

Honestly, i don't think that is the problem though

05-07-2008, 01:53 PM	#1 (permalink)
simpsons721 Registered User Join Date: Mar 2008 Location: Rochester Hills, Michigan Posts: 114	EGR what does this control, I have Code 71 I have code 71 egr what does the egr control? if i fix this what will my car do better? my car currently reads as low oil pressure when running after 5 minutes and feels it runs hot but gauge reads normal please help __________________ 94 4runner 2wd 2nd gen 4runner 3.0 V6 3VZE 131,000 Miles I need all the help i can get i want to match the guy in the forum with the pic of 333,333 milege

05-07-2008, 03:09 PM	#2 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 3,477	71 is egr. its clogged. if you are in a SMOG area, you wont pass because you will be putting out too much NOx. i cleaned my egr out,l but i dont have the equipment to test it, i only have one more free smog test. __________________ 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? you just hung a vacancy sign on your ass, and my foot's looking for a room my trucks official buildup thread

05-07-2008, 05:33 PM	#3 (permalink)
js9924 Registered User Join Date: Feb 2007 Location: Tampa, Fl Posts: 180	First of all you should search because there are a thousand threads about this topic try "code 71". anyway... It is most likely just the EGR temp sensor you can fool the ECU by putting a 10k resistor in the connector across the terminals. I would also recommend cleaning the EGR valve and the filter in the EGR vacuum modulator. Click on the link in my sig and you can see my egr removal write-up. In there you will see a pic of the resistor installed. __________________ '94 T100 3.0 My mods page: http://www.angelfire.com/fl4/dmb

05-07-2008, 08:15 PM	#6 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 3,477	take it out and spray it with carb cleaner __________________ 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? you just hung a vacancy sign on your ass, and my foot's looking for a room my trucks official buildup thread

05-07-2008, 08:27 PM	#8 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 3,477	and test the vacuum __________________ 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? you just hung a vacancy sign on your ass, and my foot's looking for a room my trucks official buildup thread

05-07-2008, 07:54 PM	#4 (permalink)
943kgt Registered User Join Date: Oct 2006 Posts: 75	I had a code 71 when i first bought my truck, ended up just being a vacuum line blown off my egr modulator, just take a look at your vacuum routing diagram under your hood and make sure your lines are routed correctly. Then go from there.

05-07-2008, 09:03 PM	#10 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 3,477	did u check the EGR filter? __________________ 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? you just hung a vacancy sign on your ass, and my foot's looking for a room my trucks official buildup thread

05-07-2008, 09:23 PM	#12 (permalink)
ozziesironmanoffroad Contributing Member Join Date: Sep 2007 Location: Spring Valley, CA Posts: 3,477	not sure, im not the engine expert. as i said im having a problem passing smog. i know theres a EGR filter, i just dunno where it is. might want to ask deathcougar.. guys not human __________________ 1988 Toyota P/U 4x4 22RE 258,000 miles on original motor pioneer CD deck 31x10.50x15 BFG A/T BAJA 100W lights on prerunner bumper KC Daylighters 100W rancho rs5000 MUD IS A VALID PAINT JOB! If not living life to the fullest, why live it? you just hung a vacancy sign on your ass, and my foot's looking for a room my trucks official buildup thread

05-07-2008, 09:46 PM	#13 (permalink)
Alex 400 Registered User Join Date: May 2007 Location: Shoreline, Wa Posts: 268	alright will do thanks. i think i am going to try and blow it out with some carb cleaner and compressed air. I think i will also use the vacuum pump to hold the valve open to get some of cleaner inside of it. __________________ 1994 toyota 4Runner SR5 Limited 4wd, 3.0 V-6 3vze, 5-speed, 31/10.50-15 toyo A/T, All Pro 1.5" coil springs, bilstein front shocks, doetsch tech mv12's rears SOON TO COME: detroit ez-locker and MC heavy duty clutch feasable wish list: 32-11.50R ssr 4.88's Probably-not-going-to-happen wish list: JD fab 4wd long travel kit. other ride:2001 Honda XR400R

05-07-2008, 10:02 PM	#14 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 1,241	The black part on the 3.0's that have the leters q, p, and r on it. Its up front near the timing belt cover, near the spark plugs! In that area, where all the vacuum lines go in. There is a little filter in there and i belive it connects to the egr __________________ -Mike 1990 4runner SR5, 3.0 with 250K, 5-speed, 4.56 gears, warn premium hubs, Hella 500's, Rancho 9000's, 33X12.50's crappy dunlop tires, rear lock right, 4" trailmaster lift with lc coils in rear, panhard drop bracket Soon to come: New wheels and tires, Sliders, CB. One Day: 3.4 swap! www.myspace.com/222948743

05-07-2008, 10:24 PM	#15 (permalink)
94toy4x4fever Registered User Join Date: Mar 2008 Location: Lewiston, Idaho Posts: 178	whats the best way to clean the filter? Just blow it out with some air? __________________ 94 toyota pickup. Work in progress! 22re w/ RV cam pacesetter header K&N cold air 31" cooper stt's Want to do: SAS, Lift, 35" tires change gears, V6 swap

05-07-2008, 10:28 PM	#16 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 1,241	buy a new one. They are tiny maybe the size of an old half dollar. Besides, if it is dirty as mine, blowing air isn't going to do anything. Honestly, i don't think that is the problem though __________________ -Mike 1990 4runner SR5, 3.0 with 250K, 5-speed, 4.56 gears, warn premium hubs, Hella 500's, Rancho 9000's, 33X12.50's crappy dunlop tires, rear lock right, 4" trailmaster lift with lc coils in rear, panhard drop bracket Soon to come: New wheels and tires, Sliders, CB. One Day: 3.4 swap! www.myspace.com/222948743

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