BinMop

What up everyone, just bought a civic with a gsr swap, and i failed emissions twice already. I just need to get my registered asap, since the tabs are expired and im already late on registration, damn fees are going to add up.
a little info about the car.
97 civic with 00 gsr swap (intake, header, exhaust/test pipe, no cat) No CEL.

First test results.

HC(PPM) Limit - 180
Cruise Emissions- 292 = Fail.

CO(%) Limit- 1.3
Cruise emissions- 10.43= Fail.


Second test (only change was messed with timing)

HC(PPM) Limit- 180
Cruise emissions- 236= Still fail, but lower.

CO(%) Limit- 1.3
Cruise emissions- 10.43- same, Fail.

im aware my car is running rich, what are some things i can do to lower Hc, CO levels? kind of low on money so dont want to drop a ton and still not pass the test.

Thanks!

raverx3m

iTrader: (1)

you test obd2 cars with tailpipe sniffer in oreegon?

dont they have the obd2 scanner?
im from WA thats what they do here.

well first of all a cat needs to be there, you will NOT pass anything without a cat.

make sure timing is set at OEM specs,
check spark plugs and spark plug wires, get new wires if needed( measure them with multimeter)
check distributor cap and rotor for wear
what ecu are you running with that gsr?
check your O2 sensor also. if the engine is running bad it will damage the O2 sensor which in turn will send out incorrect air/fuel ratio and make it run even worse.

Texas4door

You're gonna need a cat to pass, methinks
(unless you fool with the computer, put in a dummy O2 sensor, pay some money under the table, etc)
XD;

raverx3m

iTrader: (1)

A catalytic converter is a device used to convert toxic exhaust emissions from an internal combustion engine into non-toxic substances



it converts the three main pollutants in automobile exhaust: an oxidising reaction converts carbon monoxide(CO) and unburned hydrocarbons(HC), and a reduction reaction converts oxides of nitrogen (NOx) to produce carbon dioxide(CO2), nitrogen(N2), and water(H2O).[1]


cheaper to go get one at a local exhaust shop installed and pass than spend money trying to do backdoor deals.

vinem1

How often you do emission test in OR ? At least they are not like here full of BS even Diesel are required to do "SMOG CHECK" emission test.

BinMop

im from washington actually. but ill try to find a cheap one tomorrow and see if that helps. and im running a p72 btw. thank you!

fleabag

Car doesn't seem to be running correctly, catalytic converter or not... I mean with a catalytic converter at 80% efficiency, you would still be outputting 56HC which is far too high. If this car was a brand new car from that model year with a catalytic converter, your HC emissions would be about 0, despite the 80% efficient catalyst.

raverx3m

iTrader: (1)

*cough* iso-heet *cough*

but seriously. i just had same numbers almost exactly on my del sol

my timing was waaay off
my O2 sensor was faulty
and my spark plugs were fouled along with burned out cap and rotor.

timing and O2 sensor will make your engine run like sht

BinMop

okay been busy with school and stuff. so ill start by getting a cat, check my timing, new 02 and spark plugs?

Ghetto Civic HX

Let me get this straight. You're asking us why your car THAT DOESN'T HAVE A CATALYTIC CONVERTER won't pass an emissions test?

raverx3m

iTrader: (1)

yep do that and i can almost guarantee it will pass, unless theres some seriously wrong with that engine.

Texas4door

Possibly dumb question:
That's a GSR engine in that car....are you running premium gas in that thing?
Not sure if regular gas in it could make it run crappy enough to fail emissions, but it's worth a shot if all else fails
^^;

si-ej1

come down to salem we dont emission test and get ur tags here

BinMop

lol i need to reg in wa tho

BinMop

getting a cat and new ngk plugs tomorrow hopefully it will solve my problem because the car actually runs really good, no cel, idles good, nothing. thanks for the help!

ja20_eg

hey do ur emission plug in the computer or do they run ur car like a dyno and get the reading....i had the same problem like u when i had a built lsv and had to take it for a emission and fail all 3 pass...i was asking all around and one of my guys that own a shop that work with muscle car told me to run 104 octane booster in my gas and run it for a bit and rev it so ur motor gets warm up and then go do the emission..i did that to my car and i PASS the emission test!!!so try that and see if it works for you..b4 u spend more money just to pass the emission...

BinMop

they do both, but they cant get the reading for some reason. and where would i find 104 octane booster?

ja20_eg

auto zone or any auto parts..people think that using that make ur number go up for reading but really it make ur number gose lower!!!!when i use that on my car for the emission it work and when i compare it to my sheet that i fail my number were lower when using the 104..try it

ja20_eg

when i did my emmision they plug it in and try to get reading off of it but they couldnt cuz i was using a chip p28ecu so they ran my car and got the reading off of it..

chuckie81

Get an O2 simulator