Thread: 07 Ranger XLT or Navara STX

EGR ????

Originally Posted by Trout

EGR ????

Exhaust gas recirculation, early emissions control tech.

Cycles exhaust gas back into the intake to be burned a second time round in order to lower emissions

Cons of this are carbon fouling in the intake restricting airflow and performance, increased intake temps, and failure of the cooler leading
To a cooked donk.

Thankfully (on a PK/PJ) you can block the holes with two small plates, and remove the EGR cooler and revert back to how the Ute should have been in the first place, and get those intake temps down 40 deg, all the while eliminating the primary cause of failure on the 3.0 WEAT engine.

Originally Posted by Billymavs

Exhaust gas recirculation, early emissions control tech.

Cycles exhaust gas back into the intake to be burned a second time round in order to lower emissions

Cons of this are carbon fouling in the intake restricting airflow and performance, increased intake temps, and failure of the cooler leading
To a cooked donk.

Thankfully (on a PK/PJ) you can block the holes with two small plates, and remove the EGR cooler and revert back to how the Ute should have been in the first place, and get those intake temps down 40 deg, all the while eliminating the primary cause of failure on the 3.0 WEAT engine.

I don't think the patrol has such technology.Thanks for explaining Billymavs.

Originally Posted by Trout

I don't think the patrol has such technology.Thanks for explaining Billymavs.

Depends on the year, once Nissan switched from the old silver top TD42 to the mid life blacktop TD42 emissions started creeping in, mainly on AUS new trucks, pretty sure NZ didn’t have emissions requirements until about 2006

The 3.0 ZD30 patrol/navara hand grenades also had massive amounts of emissions kit tacked on to them.

I know the 1999-2016 GU patrols got EGR ect, but it would appear most people blocked it off before the warranty even had time
To expire. Certainly wouldn’t be seeing over 400,000 on the original drivetrain with it unblocked and active !

Different between here an AUS, they have to have it for a roady if the vehicle came with it.

We do not need the EGR system For a warrant and most mechanics I have worked with or come across are generally happy to rip it out, easy money for them And a longer engine lifespan (healthier lifespan also) for the customer.

NZTA even grants certification for emissions to be removed, have seen it done on a few 2018 onwards landcruisers to eliminate the dreaded Toyota EGR/DPF system.

Originally Posted by Billymavs

The 3.0 ZD30 patrol/navara hand grenades also had massive amounts of emissions kit tacked on to them.

The ZD30 in itself wasn't that bad of a long block as far as engines are concerned - the turbo, cooling and intercooler setup (or more specifically the lack of it on some versions), the neither here-nor-there engine management setup and the dumb way the egr and crankcase vent setup stuffs the intake are the reasons the things tended to grenade themselves. With all of that crap sorted out or just ripped off and dumped on the roadside they went a LOT better and lasted a lot longer. Google NADS - or Nissan Anti-Detonation System...

Originally Posted by Trout

I don't think the patrol has such technology.Thanks for explaining Billymavs.

Yeah, technology for relatively short lived diesels. Unlike the mighty TD42T Patrol heading for three quarter of a million km just on regular oil and filter changes