1UZ - Emissions - Engineering

[kranked_dirt]

G'day all, I have just started putting in a 1UZ into my SWB 40 series and was speaking to an engineer the other day about what i need to do to pass the engineer's cert. He was concerned about the emissions - even with catalytic converters etc, he thinks it may not pass. His suggestion was to run the car on a dual fuel setup as this would keep the epa happy.

Does anyone know of a way to reduce the emissions without going to a gas setup as i want to avoid it if i can.

Cheers,

Adam.

[MissDrew]

Dude find another engineer.
1uzfe are fuel injected
the oldest 1uz was made in 1989
they are from imports from japan that has tuffer emission laws then Aus.
your putting it in a 40 series that would have to be atleast 10 years older then the motor if not more.

Put in cat converter, charcoal canister and don't remove any of the vacum lines etc, factory AFM and ECU and it will fly threw without so much as a look.

[Shadow]

Dude find another engineer.
1uzfe are fuel injected
the oldest 1uz was made in 1989
they are from imports from japan that has tuffer emission laws then Aus.
your putting it in a 40 series that would have to be atleast 10 years older then the motor if not more.

Put in cat converter, charcoal canister and don't remove any of the vacum lines etc, factory AFM and ECU and it will fly threw without so much as a look.

AFAIK Engine has to comply with emissions from the engines date of manufacture, not the car its going in to.

If the 1uz was made in 96, it must comply with emission requirements of 96.

I believe there is a problem with some of the later carby 350 chev's, were the engine, although identical to earlier ones, must comply with stricter emission standards, which requires straight gas etc.

That said, I cannot believe the 1UZ, as guts says, designed to meet japanese emission standards, will not pass aus standards. Just dont remove any of the emissions gear on the engine, and you should be laughing.

[MissDrew]

Hence why I said

Put in cat converter, charcoal canister and don't remove any of the vacum lines etc, factory AFM and ECU and it will fly threw without so much as a look.

Oh and my 1uz is a 91 model soarer long motor with 89 model crown injection and pollution gear on it. My hilux is a 93 model that used to have a 2.8 desiel in it. It all past without so much as a blink.

[bogged]

was the engineer Kevin Williams?

mate wants to build an Overlander (GQ chassis with commodore/kingswood body), and the bullchit that he wants to do it, not just hourly, but letters to vicroads, that only he can write, informing them of what they are doing etc etc.. never needed any of that before.

[Gwagensteve]

dual fuel setup as this would keep the epa happy.

Does anyone know of a way to reduce the emissions without going to a gas setup as i want to avoid it if i can.

Cheers,

Adam.

I think you meant straight gas. Dual fuel will still be a problem as far as the EPA are concerned because you can run it on petrol.

This whole import motor thing is a grey area for emissions?

Even though a 1UZFE is an engine that was sold in australia, how can you prove a JDM version runs the same mapping and therefore has the same emissions?

an ADR emissions pass is derived from a standard drive cycle on a corrected rolling road. A lexus might require, say, 25% throttle to complete the drive cycle, so beyond 25% throttle, emissions aren't assessed. in a 40 series with terrible aerodynamics and rolling resistance, maybe 60% throttle will have to be used and that might result in a fail.

Im not being a sh!t, just point out that if you ask the question you might not like the answer.

Lots of cars are being passed with JDM motors in them so obviously some broad assumptions are being made as per Gut's experience that these motors are ok.

ADR emissions testing runs around $3k, you fail, you keep paying for each test until it passes.

I say find an engineer that will pass it without stressing about this. In any case, any 1UZ will be miles better than any factory 40 series motor.

Steve.

[ricduza]

Dude find another engineer.
1uzfe are fuel injected
the oldest 1uz was made in 1989
they are from imports from japan that has tuffer emission laws then Aus.
your putting it in a 40 series that would have to be atleast 10 years older then the motor if not more.

Put in cat converter, charcoal canister and don't remove any of the vacum lines etc, factory AFM and ECU and it will fly threw without so much as a look.

Guts is on the money. Find another engineer. There are some who seem full of their own importance and there are some who have a brain and use it. Maybe get onto the lextreme forum and ask about engineers in your area who have done 1UZs. I'm about to get my 1UZ done in Sydney and don't expect any problems at all.
Ric

[MissDrew]

Hell they pass 1uz conversions easy as in Queensland for farks sack. Boof is another one with a 1uz in a hilux, his hilux is heeps newer then mine and I'm guessing his 1uz is heeps older then his hilux.

[ozrunner]

Interesting. So does all this mean your DOT inspection stations actually have emmissions testing equipment and your engines are actually tested ?

If not, then how do they determine if it's ok or not ?

All our guys have is their Nose

[MissDrew]

I don't know anybody that has had to have an injected motor tested.

[booflux]

Hell they pass 1uz conversions easy as in Queensland for farks sack. Boof is another one with a 1uz in a hilux, his hilux is heeps newer then mine and I'm guessing his 1uz is heeps older then his hilux.

Yep mines a 98 model Lux with a 96 model 1uz. I was told at the time because the non VVTI 1uz was available until 99 I could use it. As for the testing again mine never had any test done as such, but the conversion has been plated and was inspected recently at DOT with no dramas