Failed E-Test with Cats !!!
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
Failed E-Test with Cats !!!
Hey ladsWe have the sniffer test here in Canada and I just failed the curb idle test. My car is a 403 ci with a tiny 214-226 559/569 on a 115lsa. It has High Flow Random Tech Cats as well. Air Fuel gauge reads 14.7 - 15 at idle on the gauge.
Here are my stats
2500rpm
hc PPM = 218 Pass
CO% = .62 Pass
NO ppm = N/A
RPM = Valid
Dilution = Valid
IDLE RPM
hc PPM = 753 Fail
CO% = .70 Pass
NO ppm = N/A
RPM = Valid
Dilution = Valid
Anyone else passing these things? I thought I would pass easily.
Any thoughs? My guess is that the cats are probably not doing there job. Anyone have a specific tune done for E-tests with HP tuners?
I will send a PM to Arun and see what he says.
Help
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
If those guys are cool at the emissions test center, take your laptop with you and try pushing more timing in at idle if raising the idle like Arun suggested doesn't put you in the green. 
Then try adding some Techron if that doesn't get you there.
Then try adding some Techron if that doesn't get you there.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
Thanks guys
The cats are only 1 year old and only about 6000 km on them but I do think they are suspect.
I did have a fuel system cleaner in the tank due to my gas gauge not reading properly.
What is the maximum they will allow a car to idle for an idle test? 1200rpm allowed?
Unfortunatly were I took the car I have my doubts they will allow me to sit there and make changes on the fly with the tune.
If anyone has a tune they have used for this exact reason in HP Tuners please pass it along !
The cats are only 1 year old and only about 6000 km on them but I do think they are suspect.
I did have a fuel system cleaner in the tank due to my gas gauge not reading properly.
What is the maximum they will allow a car to idle for an idle test? 1200rpm allowed?
Unfortunatly were I took the car I have my doubts they will allow me to sit there and make changes on the fly with the tune.
If anyone has a tune they have used for this exact reason in HP Tuners please pass it along !
Drifting
Joined: May 2005
Posts: 1,513
Likes: 4
From: Pl Grove Utah
Looks a touch rich,like cool cats. Bump the idle up close to the limit,get it good and hot,freeway hard run. retest,if still failing,pull a little fuel from the low end just to get it over the hump then reload your current tune.
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Joined: May 2006
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
I have a SMOG tune that I keep especially for the test!
It has extra amount of "TIMING" pulled at the bottom in order for it to get a super clean reading on the smog machine.
It is the low end timing that is too high, it is where they are most concerned - that is when you are at a stop idleing and running around town in the 25 MPH area.
So pull some timing and make sure the Vette is hot and good and warmed up and you should be good to go.
You might also have to pull a little fuel out at the bottom.
Take your readings to your tuner and he can do a "SMOG" tune for you and save it in a file - this is why I went ahead and got HP Tuners so I can have all my files on hand for whenever I need them or my tuner can help over the phone and e-mail.
Let us know how it goes:thubms:
Thanks,Matt
It has extra amount of "TIMING" pulled at the bottom in order for it to get a super clean reading on the smog machine.
It is the low end timing that is too high, it is where they are most concerned - that is when you are at a stop idleing and running around town in the 25 MPH area.
So pull some timing and make sure the Vette is hot and good and warmed up and you should be good to go.
You might also have to pull a little fuel out at the bottom.
Take your readings to your tuner and he can do a "SMOG" tune for you and save it in a file - this is why I went ahead and got HP Tuners so I can have all my files on hand for whenever I need them or my tuner can help over the phone and e-mail.
Let us know how it goes:thubms:
Thanks,Matt
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
thanks lads. I have owned HP Tuners Pro for 3 years and Arun is gonna hook me up as he is my tuner 
I just logged some idling and mild driving around town and sent it off to him for a look see. He is going to send me back hopefully a majical tune to kick this sniffer test in the a$$ I will keep everyone posted
I just logged some idling and mild driving around town and sent it off to him for a look see. He is going to send me back hopefully a majical tune to kick this sniffer test in the a$$ I will keep everyone posted
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
I have a SMOG tune that I keep especially for the test!
It has extra amount of "TIMING" pulled at the bottom in order for it to get a super clean reading on the smog machine.
It is the low end timing that is too high, it is where they are most concerned - that is when you are at a stop idleing and running around town in the 25 MPH area.
So pull some timing and make sure the Vette is hot and good and warmed up and you should be good to go.
You might also have to pull a little fuel out at the bottom.
Take your readings to your tuner and he can do a "SMOG" tune for you and save it in a file - this is why I went ahead and got HP Tuners so I can have all my files on hand for whenever I need them or my tuner can help over the phone and e-mail.
Let us know how it goes:thubms:
Thanks,Matt
It has extra amount of "TIMING" pulled at the bottom in order for it to get a super clean reading on the smog machine.
It is the low end timing that is too high, it is where they are most concerned - that is when you are at a stop idleing and running around town in the 25 MPH area.
So pull some timing and make sure the Vette is hot and good and warmed up and you should be good to go.
You might also have to pull a little fuel out at the bottom.
Take your readings to your tuner and he can do a "SMOG" tune for you and save it in a file - this is why I went ahead and got HP Tuners so I can have all my files on hand for whenever I need them or my tuner can help over the phone and e-mail.
Let us know how it goes:thubms:
Thanks,Matt
drewcameron@rogers.com
thanks
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
Cant help much....
But those idle hydrocarbons are about the same figure as my car with no cats at all !!!
My 383 with EPP's cam was like 2.5% CO and 850 ppm at 900rpm idle..
No CAT's required fortunately.
But those idle hydrocarbons are about the same figure as my car with no cats at all !!!
My 383 with EPP's cam was like 2.5% CO and 850 ppm at 900rpm idle..
No CAT's required fortunately.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
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