# I failed my emissions big time
**URL:** https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562
**Category:** SON240sx Automotive
**Created:** [April 14, 2007, 7:11pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562 "2007-04-14T19:11:50Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 14, 2007, 7:11pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/1 "2007-04-14T19:11:50Z")
i knew my car was rich, but not this rich:
s14 with s13 sr20det redtop completely stock and a really hot cat for the test and no sure pass.
HC ppm limit: 64 reading: 125…fail
CO% limit: .35 reading: .64…fail
NO ppm limit: 485 reading: 4247…fail
curb idle
HC ppm limit: 150 reading: 380…fail
CO% limit: .7 reading: .48…pass
NO pmm limit: N/A reading: N/A
now i need some help to pass, what do you guys think is the problem? I’m gonna check for vacuum leaks, boost leaks, the timing and the cat. Whats the best way to find the leaks because they might be hard to spot?
Also the guy at the emissions place said i cant be tested as a hot rod becasue i dont have a V8 in it and its a nissan engine i didnt think this was true, is he full of shit?
some other symptoms my car has is it idles at 1500 rpm when warm and 3000rpm when cold(and ive tried to adjust it), and… just really smelly rich
thank you guys so much for ANY help im sooo stressed and shit about this,
logan
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### Author:  [@Cabbagerollz](https://forums.speedlife.net/u/Cabbagerollz)
#### Post date: [April 14, 2007, 7:36pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/2 "2007-04-14T19:36:44Z")
Hey man I have a 1990 240sx with a Sr20det swap in it. I work at a shop here in Hamilton and the way we passed my car was to put it on the Hot Rod setting and run it. The numbers for the Hot Rod’s are huge and you will pass really easily. I am not sure why they wouldn’t let you run it that way. All you have to do to be considered a “hot rod” is to have swapped out engines. As long as you don’t have the stock engine in then you qualify. They probably scanned you VIN tag and it is running your car on your stock engine settings, and you probably will not be able to make it pass for anything that way. Let me know if you have any other questions.
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### Author:  [@Cabbagerollz](https://forums.speedlife.net/u/Cabbagerollz)
#### Post date: [April 14, 2007, 7:43pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/3 "2007-04-14T19:43:51Z")
Hey man I have a 1990 240sx with a Sr20det swap in it. I work at a shop here in Hamilton and the way we passed my car was to put it on the Hot Rod setting and run it. The numbers for the Hot Rod’s are huge and you will pass really easily. I am not sure why they wouldn’t let you run it that way. All you have to do to be considered a “hot rod” is to have swapped out engines. As long as you don’t have the stock engine in then you qualify. They probably scanned you VIN tag and it is running your car on your stock engine settings, and you probably will not be able to make it pass for anything that way. Let me know if you have any other questions.
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### Author:  [@system](https://forums.speedlife.net/u/system)
#### Post date: [April 14, 2007, 7:54pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/4 "2007-04-14T19:54:39Z")
say you need it tested as a hotrod because it is a swaped motor (different displacement) i just did my passed no problem
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 14, 2007, 10:17pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/5 "2007-04-14T22:17:24Z")
I did ask for hotrod they said no, and my problem is that even with hotrod im not gonna pass, my numbers are way too high especially on my NOppm and i want to fix that but i cant find whats wrong.
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 14, 2007, 10:19pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/6 "2007-04-14T22:19:43Z")
like what i need to kno is what would cause a high NOppm bascially, im sure if i fixed that it would correct the others a bit too.
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### Author:  [@G-E](https://forums.speedlife.net/u/G-E)
#### Post date: [April 15, 2007, 1:09am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/7 "2007-04-15T01:09:28Z")
running rich and timing is off (or erratic)
do a tune-up and set everything to spec, use 93 octane sunoco
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### Author:  [@Fobwall](https://forums.speedlife.net/u/Fobwall)
#### Post date: [April 15, 2007, 6:31am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/8 "2007-04-15T06:31:03Z")
> [@WNY Boaters / Boating Get In Here](https://forums.speedlife.net/t/wny-boaters-boating-get-in-here/12089/32):
>
> like what i need to kno is what would cause a high NOppm bascially, im sure if i fixed that it would correct the others a bit too.
Logan, where did you get it done at? I’m pretty sure if you tried it at a place like Canadian Tire or something, they’d prolly say no. That is what i’m scared off to, people saying “No it cant be tested as a hotrod.” People are just so stupid.
Once you get it tested as a hot rod though, it will be perfectly fine.
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### Author:  [@Zeta\_G](https://forums.speedlife.net/u/Zeta_G)
#### Post date: [April 15, 2007, 7:21am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/9 "2007-04-15T07:21:13Z")
does SR have EGR setup?
but from ur reading looks like the CAT is dead…
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 15, 2007, 8:18am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/10 "2007-04-15T08:18:00Z")
okie so ill replace the cat to improve my NOppm. anything else that could cause it?
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 15, 2007, 8:20am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/11 "2007-04-15T08:20:15Z")
one more thing, the guys at the emissions place said that my cat was empty, could this alone be the reason for all this shit? i just figured he was trying to get more $$$$ out of me. he could be right tho.
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### Author:  [@Wiltzor](https://forums.speedlife.net/u/Wiltzor)
#### Post date: [April 15, 2007, 12:57pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/12 "2007-04-15T12:57:22Z")
wtf cat is empty?
didnt budget put a new one in for you a couple years ago?
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 15, 2007, 1:36pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/13 "2007-04-15T13:36:15Z")
actually no, it was the resonator, i remember now. shit
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### Author:  [@Fobwall](https://forums.speedlife.net/u/Fobwall)
#### Post date: [April 15, 2007, 1:36pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/14 "2007-04-15T13:36:31Z")
> [@Took the week off to work on my car (pics) UPDATE (April 15th)](https://forums.speedlife.net/t/took-the-week-off-to-work-on-my-car-pics-update-april-15th/10570/33):
>
> wtf cat is empty?
>
> didnt budget put a new one in for you a couple years ago?
Some crazy asian probably ate the insides of his cat.
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 16, 2007, 12:51pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/15 "2007-04-16T12:51:48Z")
ok so an update…my cat was empty so im replacing that, it SHOULD fix the emissions problem.
But now ive been doing some readings on my sensors and my TPS is reading about 5.15volts off throttle and 5.15 volts WOT. This could be the cause to my high idle… does that mean my TPS is shot?
and i cleaned my iacv with TB cleaner too no change in idle.
any help appreaciated, thx,
logan
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### Author:  [@Wiltzor](https://forums.speedlife.net/u/Wiltzor)
#### Post date: [April 16, 2007, 1:12pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/16 "2007-04-16T13:12:44Z")
> [@FS: Sabres Game 1 @ Home (up to 4 tickets together)](https://forums.speedlife.net/t/fs-sabres-game-1-home-up-to-4-tickets-together/12148/3):
>
> Some crazy asian probably ate the insides of his cat.
your theory could be right. his cat was hollow’r than your head mork.
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### Author:  [@G-E](https://forums.speedlife.net/u/G-E)
#### Post date: [April 17, 2007, 6:04am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/17 "2007-04-17T06:04:32Z")
> [@What do YOU, think happened at the Pentagon??](https://forums.speedlife.net/t/what-do-you-think-happened-at-the-pentagon/12149/79):
>
> But now ive been doing some readings on my sensors and my TPS is reading about 5.15volts off throttle and 5.15 volts WOT. This could be the cause to my high idle… does that mean my TPS is shot?
check the fsm for the tps adjustment procedure, it’s supposed to know when it’s idling and do things accordingly… unless it hits the idle threshold it will think it is cruising at light throttle and never “idle”
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### Author:  [@a\_ahmed](https://forums.speedlife.net/u/a_ahmed)
#### Post date: [April 17, 2007, 6:06am UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/18 "2007-04-17T06:06:25Z")
bribe the guy for 100$ cofee money -\> pass
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### Author:  [@nocwage](https://forums.speedlife.net/u/nocwage)
#### Post date: [April 17, 2007, 12:54pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/19 "2007-04-17T12:54:36Z")
Also if you’ve got a walbro or any other larger than stock (for SR) fuel pump you could be overpowering the stock FPR, higher pressure means more fuel.
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### Author:  [@dontmakeitstupid](https://forums.speedlife.net/u/dontmakeitstupid)
#### Post date: [April 17, 2007, 1:20pm UTC](https://forums.speedlife.net/t/i-failed-my-emissions-big-time/105562/20 "2007-04-17T13:20:02Z")
so i do have a walbro and a stock fpr, could taht cause richness and a high idle?
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