Anyone in here have an SR in Illinois and pass emissions?

[TommyyJ]

i just wanted to know how many people out there in illinois have the swap and passed emissions..this holds me back of every investing in the sr...thanks

if u did pass, how did u do it?

[Daunttless]

It depends on your exact emissions test. The car is not DOT or EPA legal, however if all you have is a tailpipe sniffer for an emissions test it is possible to pass. If they check out your engine in any way and realize it isn't the stock engine you will fail though. Enjoy your day.

[SR20DET240]

I live in IL. Went with my dad when they did emissions on his truck over at the Vernon Hills testing site. This was right before they switched to the dyno test. All they did was look at the VIN # and did the sniffer test. Oh yeah they also do a gas cap test. My car (olds) failed about a year ago. I bought the car used and the guy failed me because the car had a Nissan gas cap!!! He said because it wasn't made for the car that he wouldn't test it! We bought a generic replacement from the auto parts store and they passed me.

To answer your question, I don't know exactly how the new dyno test works and if the SR20 will pass or not.

[TommyyJ]

i went for emissions testing about 2 months ago and illinois does it differently now, for cars 96 and newer they do an ecu test as well as gas cap test...all they did was plug in somethin into the cpu harness on the drivers side and i was done...with an sr20, the cpu's are completely diff so i would assume i would fail the ecu test...i think if u fail the ecu test u have to go on to the sniffer test...

[SR20DET240]

yeah they check the data from your computer's sensors through the ecm. it saves them the time of doing the sniffer.

you are right, its only for OBDII cars ('96+) and they do the sniffer if you fail.

[SR20DET240]

IL Emissions Laws

I just hit up google and came up with this. Some good brain food!

:ylsuper

What sucks is that cars from 1981-1995 get the IM240 test. Basically they put your car on a mock up dyno and run it under everyday driving conditions with a sniffer up its pipe. Hopefully the SR20s will pass. Those fortunate enough to have fuel management control can lean their mixture out to a safe limit and probably pass w/o a problem. Good luck for those w/o a cat! Anybody done the IM240 with an SR20?

[sledgehammer]

In Illinois, I know that if you have wheels that are 17" or bigger they won't put your car up on the "dyno". Instead they will idle test it with the sniffer.

[SR20DET240]

really! i guess i gotta get 17s for my car. is it like that for factory wheels too if the are 17 or larger?

where did you find that out?

[matt0941]

That's interesting, but is it gauranteed that say, a redtop SR in an S14 (97-98 per say) will pass the sniffer test if I just put on a CAT? Also, HAS anyone been to emissions and passed with an SR20DET redtop in an 97+ 240?

[SR20DET240]

i did some reading on that emissions page i linked before.

turns out they dont care what engine is installed, but it has to meet the original emissions requirement. Which means if you install an SR20DET, it will be tested as it was a KA24DE and needs to meet those regs.

Anybody know if the SR20 pollutes more than the KA24?

I couldn't find anything about the 17" wheel thing though.

[EZcheese15]

IL Emissions Laws

I just hit up google and came up with this. Some good brain food!

:ylsuper

What sucks is that cars from 1981-1995 get the IM240 test. Basically they put your car on a mock up dyno and run it under everyday driving conditions with a sniffer up its pipe. Hopefully the SR20s will pass. Those fortunate enough to have fuel management control can lean their mixture out to a safe limit and probably pass w/o a problem. Good luck for those w/o a cat! Anybody done the IM240 with an SR20?

I've never had an IM240 done with an SR20, but I'm *very* familiar with the IM240 tests and have driven the test cycle many times myself on the dyno. In the IM240, any turbo car is very unlikely to hit any boost. And if it does, it will be for just a split second. I seriously doubt it will be enough to cause it to fail. As long as you have a cat and the majority of rest of your emissions stuff hooked up (you know, the stuff that you can actually hook up), you should pass even with an IM240 test.

[slw240sx]

my Ca has a O2 sensor , they gutted all the emmisions stuff from under the hood i still think itll pass though i mean cars that are from 1980 that use carbs still pass, as long as it dont smoke an runs near lean conditions should do alright, ill post one day when i E check it... Ohios emissions contorllers E check are 375,000behind on property taxes isnt that screwed up. biggest tax evaders in the area i live in an its a governtment progam

[SR20DET240]

old cars just get the sniffer here in IL. only 81-95 get the IM240. oh yeah IM240 stands for 240 seconds, the longest your test will be allowed to run.

cheese is right. from the way the test is described, they gradually accelerate which would me little if no boost.

so since I'm here in IL, do you think I should connect my EGR when I do the swap?

[sledgehammer]

Quote »really! i guess i gotta get 17s for my car. is it like that for factory wheels too if the are 17 or larger?[/quote]

A friend of mine went to go get his Civic tested in Aurora, IL and he had some 17 inch 5zigen Imperio M-05's, and they said that they dont use the rollers with wheels that are 17" or bigger. His car is a near stock Civic EX so he was in no way worried about passing, so it's not like the emission center was doing him a favor or trying to help him pass. So I'd definitely try to borrow some large wheels from someone the day of testing.

[EZcheese15]

my Ca has a O2 sensor , they gutted all the emmisions stuff from under the hood i still think itll pass though i mean cars that are from 1980 that use carbs still pass, as long as it dont smoke an runs near lean conditions should do alright, ill post one day when i E check it... Ohios emissions contorllers E check are 375,000behind on property taxes isnt that screwed up. biggest tax evaders in the area i live in an its a governtment progam

Just cuz an older car can pass that doesn't mean anything. It's not a set number that you have to pass. It's different for every year and model. I can garuntee that if my 02 Sentra put out as many HC's as my 81 210, it would fail in a second. However, my 81 210 still passes emissions. The older the car, the higher the acceptable limit is.

[Onizuka]

you guys cant get an emissions exempt sticker? In PA if you say you drive under 5000 miles a year and can semi-prove it they dont even test your car! you get a sticker and you are on your way.

[bp2ooo]

it should pass in IL no prob. I have a friend with a s13, with an sr20det blacktop that passed, he just boosted 4 psi just to be safe. In IL they dont do any type of visual inspection, just the dyno, sniffer an gas cap like evryone has stated. If all else fails just find a way to register the car out in sugar grove/yorkville/ dekalb area. No emissions there, not a big enough population to support it.

[slw240sx]

EZcheese, i kinda figured that but i was pretending it wasnt true to help easy my nevrves about it..... i have a way to pass though, itll cost me a new exhaust system wich i want, and 19.50$

[CrabSpirits]

Tommy this is Brian. I was thinking about your situation for awhile and came up with a brainstorm:Do the swap but also add the ECU and perhaps the harness/sensors for the KA. Just hook the KA ecu to the diagnostic terminal and run power/ground to it. Do this with some quick connectors so you can remove and install the KA stuff whenever emissions time comes. When the guy at emissions links to the car, he will be checking codes for an ECU that isn't even running the engine! As long as they don't check for realtime data with car running and just checking for trouble codes you should be fine. Anyone else have a problem with my theory?

[EZcheese15]

Tommy this is Brian. I was thinking about your situation for awhile and came up with a brainstorm:Do the swap but also add the ECU and perhaps the harness/sensors for the KA. Just hook the KA ecu to the diagnostic terminal and run power/ground to it. Do this with some quick connectors so you can remove and install the KA stuff whenever emissions time comes. When the guy at emissions links to the car, he will be checking codes for an ECU that isn't even running the engine! As long as they don't check for realtime data with car running and just checking for trouble codes you should be fine. Anyone else have a problem with my theory?

Yeah, I do...

In order for that to work, not only will you have to have all the sensors for the KA (anything that will trip a code), but they all have to be functioning correctly. In other words, you have to have the KA crank position sensor picking up a real crank position signal, otherwise it will cause a code. Any of the sensors will. And they don't just need *a* signal, but they need a real one. Or atleast simulated to be real. Like an O2 sensor signal of 1.5V ain't gonna cut it. And there is a LOT of sensors that you have to account for.

[SR20DET240]

they only do the computer linkup for cars that are '96 and newer because they all use OBDII. Pre-OBDII ECMs are not tested.

[EZcheese15]

they only do the computer linkup for cars that are '96 and newer because they all use OBDII. Pre-OBDII ECMs are not tested.

Who was this directed at? Or was it just some info for everybody? I was under the impression we were talking about an OBDII car.

[CrabSpirits]

Yeah, I do...

In order for that to work, not only will you have to have all the sensors for the KA (anything that will trip a code), but they all have to be functioning correctly. In other words, you have to have the KA crank position sensor picking up a real crank position signal, otherwise it will cause a code. Any of the sensors will. And they don't just need *a* signal, but they need a real one. Or atleast simulated to be real. Like an O2 sensor signal of 1.5V ain't gonna cut it. And there is a LOT of sensors that you have to account for.

As I said before, you should be fine as long as they don't test it when the car is running and see that there is no data from the CAS, etc. as far as signals when the engine is running. Even if they do, the kind of people who work at these places are probly too brain dead to notice that rpms are at 0, etc. And there is no way these people will tell what engine is in there by looking at it. With the ECU, Sensors and Harness shoved in the glove box, the data should look like it normally does with the key in the "on" position.

[SR20DET240]

Hey cheese,

just general info. wasn't sure if we were talking about s13s, s14s, or both?

crab, I have no 1st hand knowledge, but I think that they would at least check the o2 sensor while running to make sure it is working properly and get some emissions readings out of various sensors.

[EZcheese15]

As I said before, you should be fine as long as they don't test it when the car is running and see that there is no data from the CAS, etc. as far as signals when the engine is running. Even if they do, the kind of people who work at these places are probly too brain dead to notice that rpms are at 0, etc. And there is no way these people will tell what engine is in there by looking at it. With the ECU, Sensors and Harness shoved in the glove box, the data should look like it normally does with the key in the "on" position.

You didn't understand my point. The ECU knows that if readings are out of range something is wrong. So the ECU will throw a code if a sensor is out of spec. Not just if it's not working. All the emissions places do is check for trouble codes. If none of the sensors are hooked up to get a correct reading, it's gonna have a trouble code for every sensor it has.

Also, I can tell you right now they check for trouble codes with the engine running.

[EZcheese15]

If you really want to get past it, you need to have somebody design a computer to output normal signals to the diagnostics port. A normal signal for everything the original car had. And then, use a tps sensor input and tach input and draw up real signal maps that falsly output to the diagnostics port a signal that looks normal when correlated with the TPS and tach signal from the input.

[CrabSpirits]

If all the sensors are plugged into the harness with the key "on" they can't tell the difference between the inside of a glovebox and the engine. A CAS or an O2 sensor that is just sitting there plugged into the harness will not trigger a fault code.

[mattback]

why not just switch your god damned inside of the ecu to have your LED have be on or off or whatever and while they are checking it, you just hhave it show whatever its supposed to show.

[CrabSpirits]

Personally if it was my car, I wouldn't even care. Just roll up, they plug in and see "no communication", and will likely just give you the dyno test and pass you anyway. When I had my 99' subaru tested, they just gave it an idle test and that's it. Must be a random thing. And if you fail, oh well, there are other ways of beating the system. My parent's car failed 3 times, then they stopped caring and passed it.

[EZcheese15]

If all the sensors are plugged into the harness with the key "on" they can't tell the difference between the inside of a glovebox and the engine. A CAS or an O2 sensor that is just sitting there plugged into the harness will not trigger a fault code.

True, but they *do* turn the car on. Also, other things will trip the code. You've got so many codes that can trip with OBDII, it will be nearly impossible to fake them all. What about EGR? What about Purge solenoid? What about fuel level sensor? What about canister vent control valve? There's hundreds of OBDII codes it can trip.

And here's another thing. Even if the do NOT turn the car on, are you going to tow it there? Because once the car is turned on, it is going to trip the codes. And once a code is tripped, it stays (unless you are going to reset the ECU after you turn the car off but before they check it). So if you drive it there, it's GOING to trip the codes.

And what does it matter anyway? Because they test it WITH it RUNNING.