Another Decc Thread

[SECURITY]

so i got the letter in the mail and now im starting to wonder if its worth my time to go through the process or just strip out my car.

ive been reading some conflicting information on it and so far ive got the following questions.. if anyone could help it would be great

1. which cat? i spoke to one of the workshops and they said any standard cat. it doesnt need to be nissan but it just cant be anything hi-flowed.

2. ive got a front mount. ive also read that as long as your emissions comply then they wont send you to the EPA because of a front mount. if i get rejected because of my front mount i think ill just strip it. ive got a front facing plenum and it will be just too much of a hassle to get it back to the side mount.

3. do i need to replace the whole exhaust? or can i just make my exhaust quieter by adding a muffler?

i tested my current exhaust and it sits at 89-90db @ 4800rpm. i did it with an iphone app so i doubt its right, but its supposed to be accurate to 2db. either way i'll be making it quieter, i just want to know if thats okay or if it NEEDS to be standard.

4. if i get an engineer certificate for the front mount, plenum and fixed exhaust, does anyone know if it will make a difference?

5. whats a good AFR to send the car in with? and timing?

[phatlavish]

1. I reckon they would pass any stock-looking cat, I think many people have passed with one of those magnaflow cats as well? pretty sure it also needs one of those bungs in it for that exhaust temp sensor that hangs near it

3. just has to pass the volume test - 90db @ 4800rpm, at 1 meter measured diagonally from the rear muffler. doesn't have to be the factory catback

[D_I_F]

Steel wool....

[Dahtone Racing]

You need to have all emission gear functioning correctly

You will have to refit your side mount intercooler

You need a cat with nissan stamped on it.

The exhaust doesn't need to be stock it just needs to pass the noise limit.

What will happen is the workshop will take photos and do a noise test

Then they will send the results to the EPA.

If the EPA is satisfied that that car has not been Tampered with they will send you a letter of compliance.

If not they will call you in for a full emissions test.

[SECURITY]

My issue is I've got a front facing plenum. Does anyone have a solution to getting past this? Would engineering do anything?

[Dahtone Racing]

call up the guy at campelltown inspection station and ask him

he'll tell you what you can and cant do

engineers cert. wont do shit

[MBS206]

Are you being sent for a workshop inspection or to DECC itself?

If you've been called into DECC itself, they ARE the EPA. EPA was renamed to DECC

[UWISSH!]

you can pass with a front mount but not 100% about the plenum.

any cat will do as long as it isnt hi flowed.

go n get a 2 1/2" exhaust made or try n borrow a stock one.

hide boost controller and any other controller you have

u need factory air box and snorkel

carbon canister

thats what i remember from when i went thru it a couple years back

[s13_Skyline_inside]

you can pass all of it if you get a tune and a cat to pass emissions and put all your emission control stuff on etc, but that a few grand down the track including engineers cert.

you'd need to pass the im240 emissions test if you were to get an engineers cert anyway

[Dahtone Racing]

its gotten tougher

they wont pass intercoolers that aren't stock, you need all the factory emission control items fitted and operating

we've been doing a lot of this stuff lately

so we pretty much know exactly what has to be done to pass the car first time every time

[MBS206]

From the info I've gotten recently that's not quite right if you want to pass the IM240... It's the same test as usual...

[Dahtone Racing]

I was replying to UWISSH bud

when cars need to go to DECC anti tempering inspections at a DECC approved inspection station its only a noise test and visual inspection

[SECURITY]

screw it. i think ill start parting out my car.

[mr 32]

Joe did you get stopped and get told to expect the letter or was it a random one in the mail?

[NYTSKY]

If the car passes the IM240 with a 5 inch cat, intercooler, FF plenum etc then what is the big deal? A pass is a pass regardless of what is on the car?

[SECURITY]

  mr 32 said:

Joe did you get stopped and get told to expect the letter or was it a random one in the mail?

i got stopped and defected a few weeks ago mate. worst thing is i was expecting it in the mail!

  NYTSKY said:

If the car passes the IM240 with a 5 inch cat, intercooler, FF plenum etc then what is the big deal? A pass is a pass regardless of what is on the car?

thats right, i did a bit of calling around and one of the workshops said that if you go to the IM240 test first with an intercooler and passed, he can take a copy and send that off to the DECC and that should be the end of it. the key word there is should.. its not guaranteed.

im going to give that one a go.

[mr 32]

  SECURITY said:

i got stopped and defected a few weeks ago mate. worst thing is i was expecting it in the mail!

thats right, i did a bit of calling around and one of the workshops said that if you go to the IM240 test first with an intercooler and passed, he can take a copy and send that off to the DECC and that should be the end of it. the key word there is should.. its not guaranteed.

im going to give that one a go.

that sucks

might be worth talking yavus, i belive he worked in emissions testing for a while

[MBS206]

  SECURITY said:

i got stopped and defected a few weeks ago mate. worst thing is i was expecting it in the mail!

thats right, i did a bit of calling around and one of the workshops said that if you go to the IM240 test first with an intercooler and passed, he can take a copy and send that off to the DECC and that should be the end of it. the key word there is should.. its not guaranteed.

im going to give that one a go.

If it passes, and you send it off, the only thing they can do from there, is invite you into the DECC stations and do another IM240. When you pass again, you'll be all good.

[NYTSKY]

Im going through this process at the moment.

Ill have an engineers cert and a pass on an IM240 test. Cant see why i wont pass.

[SECURITY]

  mr 32 said:

that sucks

might be worth talking yavus, i belive he worked in emissions testing for a while

yeah i might give him a ring if i fail the IM240 test with my home-job tune.

  MBS206 said:

If it passes, and you send it off, the only thing they can do from there, is invite you into the DECC stations and do another IM240. When you pass again, you'll be all good.

yeah thats the worst case scenario, i plan on getting all the parts swapped over in a week - i'll see if i can make it to the IM240 test in time before my inspection date.

  NYTSKY said:

Im going through this process at the moment.

Ill have an engineers cert and a pass on an IM240 test. Cant see why i wont pass.

from what i gathered, as long as you can prove that you pass the IM240 test and pass the DECC noise test then you should be fine - just keep the car the way it was at the IM240 test till you get a response from the DECC. my only concern after all of this is to get all of my aftermarket gear engineered - i dont want to go through this again. sucky thing is, the car is worth jack all.