emissions
02-02-05, 06:57 PM
#1
The Lounge Is My Home
Thread Starter
Join Date: Apr 2004
Location: Atlanta
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
emissions
ive failed again!!! Damnit everytime i pass everything but the hyrdocarbons!
I just tried the "alch trick" but it didnt work very well. I dont know if i ran my car long enuff tho and it was kinda rainy out today. Anaway i put back my cats, new oxygen sensor,and clean air filter. so i dont really know what else could be wrong.
Any help would be great!
I just tried the "alch trick" but it didnt work very well. I dont know if i ran my car long enuff tho and it was kinda rainy out today. Anaway i put back my cats, new oxygen sensor,and clean air filter. so i dont really know what else could be wrong.
Any help would be great!
02-02-05, 07:09 PM
#2
4-seater TII
Join Date: Aug 2004
Location: lynnwood, WA
Posts: 438
Likes: 0
Received 0 Likes
on
0 Posts
i'm in the same boat as you. but heres what i'm plannign to do next time: i'm not going to run the "guranteed to pass emmisions" stuff, then i'm gonna try to find an extra cat to pull teh stuff out of and stuff it down my exhaust tips. then, i'm going to drill a hole into my exhast piping and connect a pipe up to it with air coming from a fan to get more air into the exhaust.
if that doesn't work, i'm just gonna cut off my exhaust at the cat and just have a fan blowing plain air out my tips. in WA state you don't need to pass a visual test. haha, rotary with zero emmisions.
if that doesn't work, i'm just gonna cut off my exhaust at the cat and just have a fan blowing plain air out my tips. in WA state you don't need to pass a visual test. haha, rotary with zero emmisions.
02-02-05, 07:39 PM
#3
I'm your huckleberry..
Join Date: Jul 2002
Location: Tucson, AZ
Posts: 736
Likes: 0
Received 0 Likes
on
0 Posts
high HC is an indication that the car is running rich and/or the cat isn't doing its job. Make SURE that the car is warmed up when it goes on the dyno, have new spark plugs installed, and whatnot. If it continues to fail and your car is not modded, then you gotta get into an extensive tuneup.
02-02-05, 07:45 PM
#4
HC= unburnt hydrocarbons. in other words, gas. it means that either you are running real inefficient, like a bad spark, or running too rich.
my suggestion: make a vacuum leak. that will cause ur car to run on the lean side, and you will pass.
pat
my suggestion: make a vacuum leak. that will cause ur car to run on the lean side, and you will pass.
pat
02-02-05, 07:48 PM
#5
or take it to a smog shop and have them both check for vacuum leaks and if you are passing at low speed then have them set the variable resistor to have the engine burn the cleanest they can set it at.
causing a vacuum leak can cause HC to increase...
last thing i can thing of is you could have extremely dirty/clogged injectors which could be causing it to run rich, did they say if your cat is working efficiently or not? they should be able to tell you from your CO readings.
causing a vacuum leak can cause HC to increase...
last thing i can thing of is you could have extremely dirty/clogged injectors which could be causing it to run rich, did they say if your cat is working efficiently or not? they should be able to tell you from your CO readings.
02-02-05, 08:01 PM
#7
Put back your ACV, that is what got mine to pass. You'll obviously need to put the air pump back as well.
If you can't do the above search 'electric air pump' in the archive and you'll see a temporary fix with a pipe running straight to the cat from a GM air pump.
If you can't do the above search 'electric air pump' in the archive and you'll see a temporary fix with a pipe running straight to the cat from a GM air pump.
Trending Topics
02-02-05, 09:15 PM
#8
oh well if you have cats and no airpump, then theres no way ur gonna pass. in fact, if you have cats, and have no airpump for more than a few hundred miles, you dont really have cats anymore anyway, as they will overheat without the airpump.
pat
pat
02-02-05, 09:41 PM
#9
The Lounge Is My Home
Thread Starter
Join Date: Apr 2004
Location: Atlanta
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
I have all my emissions equipment. I have new plugs in there and the only thing that i have modded is the air intake. I put on a custom intake from the guy that i bought my 7 from. I am some what clueless on what to do next.
02-02-05, 09:44 PM
#10
i thought i gave a list of a few things to do?
if you are having serious trouble passing emissions after several attempts it is tough to get a feel for what the trouble is without a gas analyzer, which is why i suggested just taking it to a smog shop and have them run a few simple tests/procedures, shouldn't cost an arm and a leg... maybe an arm or a leg but not both.
edit: the variable resistor can change the injector's pulse width (how rich/lean) of how the engine runs at idle, it is located on the RF strut tower and should have a cap covering it, there is a procedure for setting it in the FSM, you can find a link to your FSM in the FAQ thread.
if you are having serious trouble passing emissions after several attempts it is tough to get a feel for what the trouble is without a gas analyzer, which is why i suggested just taking it to a smog shop and have them run a few simple tests/procedures, shouldn't cost an arm and a leg... maybe an arm or a leg but not both.
edit: the variable resistor can change the injector's pulse width (how rich/lean) of how the engine runs at idle, it is located on the RF strut tower and should have a cap covering it, there is a procedure for setting it in the FSM, you can find a link to your FSM in the FAQ thread.
Last edited by RotaryEvolution; 02-02-05 at 09:51 PM.
02-02-05, 09:49 PM
#12
Originally Posted by civic slasher
Pay someone off, i had the same problem with my GXL!
think long term, if you have a modified 7 which you plan on keeping modified this sounds like a good approach but if it is a stock or daily driver then this is a shitty way of thinking, if you fix the emissions trouble it will be much easier to smog next go around.
02-03-05, 04:40 PM
#15
Is that thing Turbo?
Join Date: Jan 2004
Location: Maryland
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
hmm, wow i'm glad we don't have emisions here, but in places they do have em i've seen the vacuum leak trick work, if your running rich than the extra air coming in after the AFM should lean it out a bit
Thread
Thread Starter
Forum
Replies
Last Post
Snook
3rd Generation Specific (1993-2002)
17
02-27-21 02:54 PM
ls1swap
3rd Generation Specific (1993-2002)
12
10-01-15 07:58 PM
PinkRacer
2nd Generation Specific (1986-1992)
43
10-01-15 09:13 AM