Cant Pass emissions...
 

At first i went in for emissions with a D16z6, fmu, timing retared, garrett turbo at low boost, VAFC II, 255 walbro fuel pump...it didnt pass..which i knew would happen..if passed on everything cept HC... in my town the limit is 220 HC... so I put my timing back to normal, took off the fmu, turbo and fuel pump...and left the vafc on...i went in today and it still failed...at idling...it was at about 500 HC... what the ---- is wrong?? does the VAFC II have anything to do with it.... Please help!

Re: Cant Pass emissions...
 

tyou running a cat?

Re: Cant Pass emissions...
 

Do you have larger injectors still? would the fuel pump be dumping more fuel than stock, maybe adjust fuel pressure, i'm not really sure, sorry...Matt

Re: Cant Pass emissions...
 

you dont have to take the turbo off, just disconnect the wastegate arm.
set all the settings to 0 on the vafc.
if you know someone with an hf, cx or 96+ precat, use those headers and then you have 2 catalytic convertors.
works good in cali. ;)

also make sure you car is warmed up real good.

Re: Cant Pass emissions...
 

i have been told that if you throw 2 cans of heat in your car that u will pass no problem i havent tryed it yet but thats what i have been told by a few friends

Re: Cant Pass emissions...
 

when was ur last tune up and oil change?usually if ur plugs are dirty and ur wires are old then ur not burning the fuel completely and as clean as u can....do a tune up and stuff and try again....

Re: Cant Pass emissions...
 

how would you use a stock header if you still have a turbo installed on the car ? :P

Re: Cant Pass emissions...
 

use the "heet" along with about a gallon of gas. It is essentially alcahol and burns super clean, but you motor will make very little power. If it still doesn't pass try a higher concentration of heet/to high octane gas. It will work, just get the concentration right.

Re: Cant Pass emissions...
 

My Whole turbo is off... the only aftermarket ---- still attached.. is full exhaust with a Hi-flow cat... and the vafc II... would the cat have somthing to do with it... I have my timing set to 0 and the fmu off... it still didnt pass...

Re: Cant Pass emissions...
 

an oem cat would deffinitly help compared to the high flow

Re: Cant Pass emissions...
 

Re: Cant Pass emissions...
 

dude hydrocarbons (HC) is unburned fuel so you are running way too rich a stock cat isnt going to do much about that

Re: Cant Pass emissions...
 

Re: Cant Pass emissions...
 

good point. stock cat will help pass in other areas i wasn't paying attention

Re: Cant Pass emissions...
 

Try advancing your ignition timing to give the fuel mixture more time to burn. You are running pretty rich too because HC's are not even partially burned fuel, but completely unburned fuel. If you have bigger injectors, put the stockies back in. Or you could try leaning it out with your VAFC. I hope you can make it!

Re: Cant Pass emissions...
 

Install a MSD temporarily. I failed in MD for the same thing and after installing a 6AL and made no additional changes, I passed.

Re: Cant Pass emissions...
 

well it turns out oil is leaking into my #3 Cylinder... they want 1200 to fix it... valve job: giude seals...i guess...i said no.. could I just buy a new d16z6 head instaed?

Re: Cant Pass emissions...
 

pull the head yourself. strip it down bare. go to your local auto store and pick up some valve grinding compound and stick and lap the valves. take it to a shop and get it dipped(cleaned). order new intake and exhaust valve seals and a new cam seal. cleam your valves VERY WELL since they were not cleaned with the head. you do not want ANY of that compound to stay on. then reassemble the head and your done. be sure to get a new hg aswell and arp head studs while your at it(since you said your booted.. they are a good investment)

goodluck

-Luke