The Mitsubishi Pajero Owners Club®

simon1975 · * Joined: 21 Aug 2003 Posts: 49 Location: bedfordshire

hi peeps, thanks for help so far, very useful.

just two questions now

1 what is an egr valve? what does it do etc and do you get more power if you blank it off? i read somewhere that you do, if so how do i do it?

2 i also read something about injector screw adjustment. if this is wrong could it affect my power? how do i check and adjust or does it need garage or specialist?

would be grateful for any help on these points,

thanks

simon.

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spuddy · ** Joined: 21 Aug 2003 Posts: 100 Location: worcestershire

hello simon
here is the info on the egr valve
How the EGR System Works

If you care here's how the exhaust gas recirculation (EGR) system works. A few years ago scientists discovered they could reduce the formation of nitrogen oxides (NOx) during combustion by keeping combustion temperatures below about 2500 degrees F. They did this by injecting an inert (non burning) gas into the air/fuel mixture of the engine. The inert gas helps cool the combustion event to below the threshold where NOx are formed. It turned out that exhaust gas works well as an inert gas.

The EGR valve allows a metered amount of exhaust to enter the intake of the engine. The EGR valve uses vacuum or a electrical signal to open the valve and inject the exhaust. The valve is closed with no vacuum present (yes, if you remove the vacuum line you will disable the EGR). that the EGR valve only opens under relatively light loads between 1050 and 3850 RPM. It is closed at idle, deceleration, RPM above 3850, and heavy load.

So it seems that there would be little benefit in disabling the system.
hope that helps alittle simon
wouldnt like to say about the pump.
spuddy Smile

sjhmail · ** Joined: 29 Jul 2003 Posts: 124 Location: Staffordshire

See link here

http://www.pocuk.com/phpBB2/viewtopic.php?t=4185

on how to block off the EGR valve.

May help increase power and reduce smoke, although opinion seems divided!

simon1975 · * Joined: 21 Aug 2003 Posts: 49 Location: bedfordshire

thanks for the info guys,

read everything and think i might try it as the other half drives it more than me and she keeps commenting on the smoke!!!!!

would still like th hear more views and if anyone has had any problems after blanking off egr?

also gonna book in with a diesel garage for injector test/adjustment as people say it can cause low power!

cheers

simon.

stumpey · Posted: Fri Aug 29, 2003 10:49 Post subject:

simon1975 · * Joined: 21 Aug 2003 Posts: 49 Location: bedfordshire

thanks steve,

guess ive just found myself a job for the weekend!

are coke/beer cans ok or should it be more substantial?

simon

stumpey · Posted: Sat Aug 30, 2003 9:40 Post subject:

I started with a coke can but it stretched and split so I now have a plate made from 1mm sheet. So far it has been OK.

Steve

simon1975 · * Joined: 21 Aug 2003 Posts: 49 Location: bedfordshire

thanks

remembered a friend that works with sheet metel etc so am gonna get him to knock me something up!

cheers

simon