ok...i definately hate emissions! I have a crx with jdm b16a. Everything is stock. I am not passing emissions. I have a cat on it. I was thinking about taking it through emissions with a pm6 (single cam ecu). I plugged the ecu in..and it idles and drives perfectly fine. I was wondering if you guys had any other suggestions on what might help. Ive done research..but none of these additives seem to be working...someone help!

 

What obd are you running? I'm assuming obd1 from what you just said, also If you cat is old, replace it immediately.

 

Lower you front end to less than 8 inches from the ground, on the eastcoast if you car is to low, they will not test it becuase it's a liablity. I know you probably have to pass it now that you failed it, but just thought I'd pass on what works on the eastcoast. I've missed emissions the pass 4 years because my car is to low, and thus a liablity, and I get to put a waiver in my glove box.

 

sorry im running obd0. LUUCKKKYYY...they still test if our cars our dropped. They just dont put it on the rollers. They put an exhaust sniffer to it.

 

if your in canada you can get a "conditional" e-test. its like $400 but then u never have to get one again.. you could run exhaust out of the hood if u wanted too... but anyways.. good luck

 

Keep in mind that the test isn't for the emmissions requirements on a b16, you have to make the b16 pass the requirements for the stock d-series. Check how old your cat is. Get some strong fuel system cleaner and run it through with a full tank of gas. This should hopefully get rid of some carbon build up. Change your plugs before you do this... better spark to blow out the carbon. After you're about half a tank down do some WOT runs. A fuel filter change might help too. Take your car to emissons when it's warmed up so the cat is working. Hopefully after all this you will pass and your car should run a little better too. There are some other tips and tricks, but start with the basics.

 

P.S. DO NOT run through the e-test while additives are in your gas tank. It makes the emissions worse for the time being b/c it's cleaning everything out the engine.

 

wat ive been told as a trick you should pump your tires up hella full so its less stress on the rollers. im also of the prosses of getting a full tune up on my car to pass smog. good luck to both of us.

 

Glad I live in a state where emissions don't mean ****.....

 

heh that tire idea is awesome. Do you guys think putting in the single cam ecu will help greatly? I failed with a PR4 ecu

 

someone help him ive tried and everything we do fails. weve even tried E85 gas and still no go. ugh he has 1 more try then hes screwed anyone?

 

I am going through the same issue currently.

I would recommend checking the 02 sensors for proper operation and wiring. I had one that was bad. It didn't entirely solve my problem, but I would have never passed with it non-op. Also ensure that your wiring is up to snuff....a bad connection could be throwing the ECU off.

ONe thing you may want to check also is the idle screw. If you have it set improperly, it will throw off the ECU. This is what happened on my car.

 

They have "Emission Passer" or something like that. They sell it at autozone in these really small bottles. I don't know if they work tho.

 

WTF if you failed on E85 something is fucked up bad.

Post the sheet so we know what your failing with.

Also the emissions passer stuff DOES NOT work, I use to do emissions at Jiffy Lube and people tried that **** all the time and it didnt work.

 

That emissions stuff doesnt really work well..i actually work at AutoZone..and i always see people wanting their money back claiming it didnt work. When i did the e85 i was running itbs and fuel management...i got rid of that stuff...**** was all ghetto rigged. anyways..i just got word that using a jdm ecu will cause me to fail..how true is this? I plan on running it through emissions with the pm6.

 

That emissions stuff actually can work, just like I said before, don't run through the test with additives in your tank. Use the additive, burn up what's in the tank, and go to emissions with a fresh tank of gas. What part of emissions are you failing? NOX, CO, or HC?

 

hydrocarbons and Co

 

CO------> Replace the cat or even just add a second one. If your car came with an air pump make sure it's hooked up and working.
HC------> You're running too rich. See if you can lean your mixture and make sure your throttle body is working properly. Clean the t-body and make sure nothing is blocking the air intake. A good fuel system cleaner may also help with HC's. Just make sure the cleaner isn't in when you test. (keep in mind this may also be because you have a motor swap that uses more fuel than the stock engine, therefor, more HC's)

 

K i just went through emissions again..and passed the C0's but failed the hydrocarbons..I went in with a pm6 ecu. The hydrocarbons maximum was 242 and I was at 480.

 

Try mixing in a couple bottles of dry gas in your tank right before you test again, burns a little bit cleaner. Like I said though, a DOHC b16 will use more fuel than your stock d-series, therefor have more HCs.

 

i put high octane additive in there before the test. Dry Gas?

 

should i try retarding the timing?

 

B16's can be just as eco-friendly as a D series. Heck my swap is much cleaner than my old D15b2. I have a cat and full exhaust and run a chipped p28. We have the sniffer in Delaware for the older cars like ours. (no rollers). I EASILY passed. Make sure that your cat is good/new and warmed up. If it's not warmed up then it isn't functioning properly yet. I have failed in the past b/c of a bad cat. Also, maybe try leaning out your engine (turn the fuel down if possible ). Maybe get really ghetto and pinch the line before you get inspected to slow the fuel flow

 

to get back in this thread and sorry to steal the thread for a second. um i just did a full tune up i.e. new spark plugs, oil, oil filter, fuel filter, and i already had new cables, rotor, and cap. i might go now cause i got a used exhaust system from a frined with straight pipe well with a cat to. not sure if its good still. one more thing before i go. my check light is throwing 5 (map sensor), 6 (coolant), 17 (speed sensor) w/ obd0. i have the si manifold on except the carb. the map sensor should be woking after i got a new hose for the vacum but the other plug in on the map that sits on the right is just chillen. it still throws the light. with the coolant i have the switch for it but still throws. ?. and the speed sensor i think i need a new one. if any one could help thanks cuase its stressing me out. sorry for the highjack.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackEF8 &raquo;</TD></TR><TR><TD CLASS="quote">i put high octane additive in there before the test. Dry Gas?</TD></TR></TABLE>

High octane gas burns slower and will increase your unburnt fuel = increase your hydrocarbons.

I had a similar problem a few months back, I drove to the testing center 6 times before I passed.

I was failing on hydrocarbons as well. I tried advancing my distributor a few degrees and adding a bunch of isopropyl alcohol to the tank. Both of which helped but didn't get me into the range.

Out of frustration I did a compression and leakdown test and foud out that my valves weren't sealing correctly in #3 which caused the fuel in that cylinder to not burn completely and in turn caused me to fail emissions all those times.

So, I pulled the head off, rebuilt it, and threw it back on there. Then I passed first time with flying colors!

Anyways, just goes to show that it could be a number of things. But at least you know you are failing hydrocarbons and that is unburnt fuel, so you need to figure out why you are not burning all that fuel up and fix the problem.

Good luck. It can be frustrating!