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Re: Can someone explain the EGR system to me? [Re: PHIL_] #761966 11/06/06 03:00 PM
Joined: Sep 2006
Posts: 84
Bulletproof Offline
Getting the Wheeling Fever
Quote
I think you're taking my comment completely out of context.


I guess my point (made too strongly?) was that the environmental issue was nigh on irrelevant in this discussion. The point I thought should be whether or not the trucks would run better with or without it. I think the POCUK crew is largely on the side of the latter.

I am anxious to see if it will improve my truck's performance. I will let you know when I get around to installing it.

No hard feelings Phil, and no certainly no disrespect intended!


1991 4D56T V44W JDM Mitsubishi Pajero
Re: Can someone explain the EGR system to me? [Re: Bulletproof] #761967 11/06/06 03:09 PM
Joined: Jan 2000
Posts: 7,309
PHIL_ Offline OP
Trail Leader
*****
None taken Ron my buddy, no worries.

You may be surprised how the EGR looks though - I took mine apart expecting to find a completely clogged mechanism, only to discover that it was only lightly coated with soot. But by all means report back. Another guy I know here in town recently got a Paj as well (kind of a combo of yours and mine) with less miles than mine, and he also has a blank off plate, so it'll be interesting to see what yours does with one installed.

Re: Can someone explain the EGR system to me? [Re: Macka] #761968 11/08/06 04:14 AM
Joined: Feb 2006
Posts: 266
bill_bly_ca Offline
Mudrunner
For my Paj the test was... (no Bu!! S#!+)

"Buddy" stands behind truck and watches tail pipe at 1600RPM. Does this for 5 min.

No Smoke = pass

That is the Ontario test for Diesels...

Last edited by bill_bly_ca; 11/08/06 04:18 AM.

97 Prado (LC 90 series) JDM import 2020 --- 2000 Galloper II SWB under offer from Korea
88 Mits Pajero LWB 185000Km 2.5TD JDM import (SOLD)
Re: Can someone explain the EGR system to me? [Re: PHIL_] #761969 11/08/06 06:26 PM
Anonymous
Unregistered
Regarding EGR Blockoff. I have a Nissan Terrano with 4cyl diesel. When I got it, up until the turbo cut in it stumbled and belched out black smoke. I have bought a 1/8 inch ball bearing to block off the vacuum line to EGR. Unbelievable difference! Very little smoke if any. Lower RPM no more hesitation, a completely different vehicle!

Re: Can someone explain the EGR system to me? [Re: bill_bly_ca] #761970 11/10/06 05:27 PM
Joined: May 2004
Posts: 927
Macka Offline
Rock Warrior
Quote
For my Paj the test was... (no Bu!! S#!+)

"Buddy" stands behind truck and watches tail pipe at 1600RPM. Does this for 5 min.

No Smoke = pass

That is the Ontario test for Diesels...



Bill,

actually they are supposed to put a sensor on the tailpipe to measure CO and other emissions coming from the pipe. It is the exact same test as they use on the commercial vehicles for the "clean air" testing. You are using biodiesel, so you are running a lot cleaner then people running dino-diesel. If your engine is in tune and all your parts are working and in adjustment you should pass no problem. Here is how the test is done right from the drive clean site
At an accredited Drive Clean facility, an emissions inspector will drive your car or light-duty truck onto a dynamometer. This machine is like a treadmill that allows the vehicle to be "driven" on one spot at different speeds.

A probe is placed in the tailpipe of your vehicle. The probe is connected to a gas analyzer and computer, which can measure the concentration of nitrogen oxides (NOx) and hydrocarbons (HC), which includes volatile organic compounds, and carbon monoxide (CO).

Your vehicle is accelerated to a steady speed of 40 km per hour. Several emissions readings are taken and then averaged by the computer during this driving simulation. The simulated driving conditions result in measurements of NOx, HC and CO. Then, when the vehicle is returned to idle, the emissions are measured again, in what is called a ôcurb idleö test. The idle portion of the test measures HC and CO.

The test results will be compared by a Drive Clean computer to emissions standards for the vehicle and its model year. For example, if you drive a 1990 model car, it will be tested against 1990 emissions standards with an allowance for vehicle deterioration.

As part of the test, the emissions test inspector also checks the upper portion of the fuel filler pipe for damage or corrosion, to determine if fuel vapours can escape, and pressure tests the gas cap. In addition, if the Malfunction Indicator Light (MIL) on the dashboard is illuminated in 1998 and newer model year vehicles, the owners will be advised that it may indicate a malfunction of the vehicle emissions system.

If your vehicle has a problem that would prevent it from being tested safely, or releases visible smoke from the tailpipe it will not be tested until it has been repaired. Such problems could lead to injury, and/or malfunctioning of the test equipment.

Some vehicles, such as those with full-time all-wheel drive, cannot be tested on a dynamometer. These vehicles receive a two-speed idle test, where emissions of CO and HC are measured at curb idle and 2500 RPM.


always working
Re: Can someone explain the EGR system to me? #761971 11/10/06 07:06 PM
Joined: Jan 2000
Posts: 7,309
PHIL_ Offline OP
Trail Leader
*****
Heya Brian! I'm the guy you were talking to in the Crappy Tire parking lot the other night with the Pajero...

Good to see you here! (Guys, Brian also has a sweet RHD Hilux - NICE!)


1991 HZJ77, 1999 KZJ90, 1999 UZJ100, 1992 M101CDN2
https://www.thegearheadproject.com/category/jdm-journeys/

Re: Can someone explain the EGR system to me? [Re: PHIL_] #761972 11/11/06 06:23 PM
Joined: Jul 2005
Posts: 200
Glock24 Offline
Wheeler
Some time ago my truck's performace dropped dramatically, acceleration was (even more) horrible, and there was a lot of black some out of the tailpipe when accelerating. Fuel economy was down too (7-7.5 km/l vs 8.3 km/l) Air filter was new and injector tips were replaced not long ago, so there was only one more subject, the EGR.

I blocked the vacuum hose that activates the EGR, drove a couple of kilometers, acceleration was good, and no more black smoke. Then unblocked the hose again... black smoke and poor acceleration were back! So good bye EGR and black smoke, and welcome better fuel economy and acceleration.


'98 Galloper II Exceed 2.5TDI LWB 5sp Manual 5.29 Diffs
Re: Can someone explain the EGR system to me? [Re: Glock24] #761973 11/12/06 01:19 AM
Joined: May 2003
Posts: 1,121
PartyTruck Offline
Body Damage is Cool
I've been having somewhat of a lumpy performance for a few months. Feels like something is clogged and then all of a sudden it's just like it's supposed to be. Comes and goes with no apparent ties to engine heat or fuel status. I'm strongly suspecting the EGR valve on this one so my question is.

Where is the EGR located and can it be shot with a rifle? It must DIE


P.s.
There is also a very fine metal filter in the fuelpump housing where the fuel enters the pump. I've heard story's of huge increase in MPG's and power after cleaning with carb cleaner.


1987 SWB Pajero 2.5 TDI on 31" rubber waiting for a hip replacement and bigger shoes
Re: Can someone explain the EGR system to me? [Re: PartyTruck] #761974 11/12/06 01:33 AM
Joined: Jan 2000
Posts: 7,309
PHIL_ Offline OP
Trail Leader
*****
Right next to the waste gate actuator, kind of a round thingy, two bolts on the side, and two underneath. And yes, its actually on TOP. RHS, bout a foot front of the firewall, bout 2' from the fender. In this pic its the metal thingy you can JUST see at the top of the pic, in the middle. One of the bolts is visible. There is a gasket in between it and the intake, but I removed the EGR carefully to clean it out, and resused the gasket when I put it back in place... its one of those metal ones anyway.. Carb clean and brake kleen worked wonders.

[Linked Image]


1991 HZJ77, 1999 KZJ90, 1999 UZJ100, 1992 M101CDN2
https://www.thegearheadproject.com/category/jdm-journeys/

Re: Can someone explain the EGR system to me? #761975 11/22/06 06:42 PM
Joined: Sep 2006
Posts: 100
Brewmaster Offline
Wheeler
Brian! Is that you that bought the Terrano from me in Langdon? If so, then you're telling me that the EGR valve is the culprit and NOT the injectors? The guys at GCL Fuel systems swore that it was the injectors. I spent $400.00 getting them cleaned only to have them tell me that they needed replacement. Ba$t3rds! :-)

Cheers!

Kelvin


Kelvin
91 Pajero Exceed - Controls mounted curb-side for convenience
82 Mercedes 300SD
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