TGRAY Posted September 19, 2019 Share Posted September 19, 2019 I own a 91 Pathfinder and was wondering about deleting the EGR,and I have several questions. What are the pros and cons? BTW,I live in Alabama so no emission issues legally. Can anyone give me step by step instructions or point me in the direction to find them? Link to comment Share on other sites More sharing options...
mjotrainbrain Posted September 20, 2019 Share Posted September 20, 2019 Moved from R50 section to WD21 section to match model year being discussed. Link to comment Share on other sites More sharing options...
mjotrainbrain Posted September 20, 2019 Share Posted September 20, 2019 It's been done and discussed, since the forum's built in search tool can be clunky I'd suggest putting "site:nissanpathfinders.net/forum EGR delete" into Google and going from there. 1 Link to comment Share on other sites More sharing options...
Slartibartfast Posted September 20, 2019 Share Posted September 20, 2019 Can be done. Not much point, though, unless it's buggered and you don't want to pay for a new valve. It only kicks in when cruising, so it shouldn't be holding the engine back unless the valve's jammed open. It's supposed to improve fuel economy when cruising by reducing manifold vacuum. If it is screwed up, there's not much to remove, though the fittings on the exhaust line will be a fight to get loose. For testing purposes, you could just unbolt the valve from the intake manifold, slip a thin piece of sheet metal between it and the manifold (covering the hole), and bolt it back up, just to see if you notice any difference in performance. If the truck's got federal emissions, the computer shouldn't notice. California-smog trucks will throw codes and light up the CEL. I had mine apart when I had my intake off. It was all in good working order, so I just knocked out the carbon buildup and put it back how it was. Link to comment Share on other sites More sharing options...
TGRAY Posted September 20, 2019 Author Share Posted September 20, 2019 Thanks guys.I,m not having problems with it right now,but am basically stripping all unnecessary items that I possibly can,whether its to increase performance or to just make maintenance easier.I'm building a hunting, fishing, camping and generally goofing off in the woods vehicle that I can also use as a daily driver if I want. I'll probably have more stupid questions later,but promise I'll try to make sure I search older posts first. Thanks . Link to comment Share on other sites More sharing options...
adamzan Posted September 22, 2019 Share Posted September 22, 2019 I honestly wouldn't touch it. I've never in the 14+ years of owning and driving wd21s had an EGR issue. I'd focus your time on mods that will improve the off-road prowess Link to comment Share on other sites More sharing options...
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