New Emissions Check - Subaru Enthusiasts Car Club of the Sierras

renoguy20 · 2008-02-14, 04:55 PM

Well I figured that Id go down and try to smog my car with the Cobb AP married but realtime map being stock mode. All the necessary sensors are there, both o2's, egt... Passed the visual but the car for some reason did not pass, it got rejected. Smog tech told me that this is a new system this year. The reason for the reject were o2 sensor not ready, and catalyst monitor not ready.

He said that these monitors don't set for a couple of miles, But i'm assuming that they may not ever set with the ap married stage 2 base map, stock married realtime map. Of course I switched the maps and drove just a few miles to the smog inspection station and this may be the cause for the monitors not setting yet. Has anyone just tried passing smog with stage 2 base and realtime map (Assuming you pass the visual inspection)? I'm curious how cobb eliminates the cel codes, is it just extending the parameters, or ignoring the afflicting sensors completely?

I put the stock dp on and flasshed base back to stock and then passed, but just curious if stage 2 (cattles) would pass as is with cobb map (of course without a visual inspection)?

Kevin M · 2008-02-14, 05:08 PM

I'd try it again with at least 10-15 miles since your last ECU change.

MPREZIV · 2008-02-14, 07:23 PM

From what I've heard, there's a new system up and running as of a month ago or so. The smog machine now, via the OBD port, FORCES monitor item checks in your ECU. As far as I understand, a car with a catless reflash, and the subsequent CEL codes "turned off" with an AP or otherwise, will immediately fail the smog test, when it attempts to run those monitors.

cody · 2008-02-14, 09:14 PM

^That sucks. I've passed every time with a protuned (AP) stage II MY03 WRX. When my next smog comes up, we'll see.

Normally "not ready" warnings usually occur due to the ECU having been reset within the past couple days/couple hundred miles, but after reading Cory's post (above), it sounds like that may not have solved your problem.

Nick Koan · 2008-02-15, 11:50 AM

Yeah, I got my car smogged last month and didn't have a problem with stage 2 and being catless.

If this just changed, then that might accelerate my plans to go back to stock.

knucklesplitter · 2008-02-15, 02:01 PM

This could be trouble for me with numerous codes turned off in my ECU with Enginuity... errr, I mean RomRaider. Is this maybe why Perrin and Harmon Motive are putting cats on their '08 WRX/STI downpipes? Perrin seems pretty ademate that their exhausts will have cats.

Double Phister · 2008-02-16, 09:56 AM

Anybody know how the ECU determines cat efficiency? I have my wideband in place of the stock rear O2. I'm using one of the analog outputs to simulate the stock sensor.
When you remove a cat what changes are seen via the rear O2 that signals the cat is bad or missing? Is it just a wider swing on the output?

MPREZIV · 2008-02-17, 09:38 AM

Front O2 sensor switches rich-lean about 30 times for every one switch of the rear, as long as the cat's working properly. If you just remove the cat and were to leave the EM stock and O2 sensors in place, then the front and rear sensors will effectively see the SAME switching ratio, which tells the ECU that everything's gone wrong!

nightwalker · 2008-02-17, 08:23 PM

pffft, you guys are lucky. "OBDII monitors not run yet" fails, try a true emissions test coupled with a strict visual underhood inspection, and test of smog equipment to be in place and properly functioning. Oh how I love California.

Kevin M · 2008-02-17, 10:06 PM

How do you think some of the people on this forum ended up in Reno?

PecoFC · 2008-03-01, 10:56 AM

hey anyone get their car smog check lately? Im worried now after hearing all these stories.

Tripperfx3 · 2008-03-01, 05:42 PM

It will still be the same. I had read about this on EvoM, but didn't understand what was going on, but now I do. I've got a ECU reflash that elimiates the rear O2 sensor, so I'm gonna have to get a universal O2 sensor this year and remove that part of the code.

AWDlaunch · 2008-03-02, 08:03 PM

i had a catless downpipe, but removed for smog and replaced with the stock cat. no visual, passed with flying colors.

cody · 2008-03-04, 09:10 AM

Quote:

Originally Posted by Tripperfx3

It will still be the same. I had read about this on EvoM, but didn't understand what was going on, but now I do. I've got a ECU reflash that elimiates the rear O2 sensor, so I'm gonna have to get a universal O2 sensor this year and remove that part of the code.

So you're saying that any map that defeats the rear O2 sensor CEL is going to prevent passing now?

Kevin M · 2008-03-04, 09:42 AM

If they check for the monitors to be enabled, yes. Any disabled or altered monitors will show up. If they check.

cody · 2008-03-04, 09:55 AM

Well, the good news for me (if they check) then is that my car will run fine on the stock map. I just have to hook the stock boost solenoid back up and install a physical fix for the rear O2 sensor CEL (I already have the UP EGT CEL Resistor Fix in there), then drive around for a week before the check.

cody · 2008-04-29, 12:53 PM

Just got smogged...didn't have to put anything back to stock. Gaye said the only difference is that the certificate that prints out looks different. So as long as you don't have a CEL and your ECU hasn't been reset recently, I think you're still good to go.

A1337STI · 2008-04-29, 02:01 PM

I love being in stateline, NV Smog check, what's that ?

course both my imprezas have all their stock cats

2008-02-14, 04:55 PM	#1
renoguy20 EJ18 Join Date: May 2005 Location: Reno Posts: 75 Car: 2005, Subaru Impreza WRX Wagon	New Emissions Check Well I figured that Id go down and try to smog my car with the Cobb AP married but realtime map being stock mode. All the necessary sensors are there, both o2's, egt... Passed the visual but the car for some reason did not pass, it got rejected. Smog tech told me that this is a new system this year. The reason for the reject were o2 sensor not ready, and catalyst monitor not ready. He said that these monitors don't set for a couple of miles, But i'm assuming that they may not ever set with the ap married stage 2 base map, stock married realtime map. Of course I switched the maps and drove just a few miles to the smog inspection station and this may be the cause for the monitors not setting yet. Has anyone just tried passing smog with stage 2 base and realtime map (Assuming you pass the visual inspection)? I'm curious how cobb eliminates the cel codes, is it just extending the parameters, or ignoring the afflicting sensors completely? I put the stock dp on and flasshed base back to stock and then passed, but just curious if stage 2 (cattles) would pass as is with cobb map (of course without a visual inspection)?

2008-02-14, 05:08 PM	#2
Kevin M EJ22T Join Date: Sep 2003 Location: Reno Posts: 9,445 Car: '93/'01 GF6, mostly red Class: 19 FP	I'd try it again with at least 10-15 miles since your last ECU change. __________________ FWD is the new AWD

2008-02-14, 07:23 PM	#3
MPREZIV Token Real Name: Le Stig Afrique? Join Date: Jun 2005 Location: sitting next to a big yellow box Posts: 3,589 Car: 2001 Impreza 2.5 RS Class: 05 TDSP No, I won't work on your car. F your car*	From what I've heard, there's a new system up and running as of a month ago or so. The smog machine now, via the OBD port, FORCES monitor item checks in your ECU. As far as I understand, a car with a catless reflash, and the subsequent CEL codes "turned off" with an AP or otherwise, will immediately fail the smog test, when it attempts to run those monitors. __________________ "...these condoms have a topical anesthetic to reduce sensitivity, so you can last longer. What a paradox. You can't feel a thing, but you can f*ck for HOURS..."

2008-02-14, 09:14 PM	#4
cody Candy Mountain Real Name: Cody Join Date: May 2005 Location: Californication Posts: 7,751 Car: 03 Pussy Wagon, now with more pink! Class: TESP OMG Internet!	^That sucks. I've passed every time with a protuned (AP) stage II MY03 WRX. When my next smog comes up, we'll see. Normally "not ready" warnings usually occur due to the ECU having been reset within the past couple days/couple hundred miles, but after reading Cory's post (above), it sounds like that may not have solved your problem. __________________ Slow and low, that is the tempo.

2008-02-15, 11:50 AM	#5
Nick Koan JDM Cowboy Real Name: Nick Join Date: Oct 2003 Location: Somewhere Posts: 8,642 Car: 2015 Mazda 3	Yeah, I got my car smogged last month and didn't have a problem with stage 2 and being catless. If this just changed, then that might accelerate my plans to go back to stock. __________________ While a standard engine is powered by a belt connected to the crankshaft, a turbo engine runs on its own exhaust steam, making it more energy efficient. -- CNN

2008-02-15, 02:01 PM	#6
knucklesplitter EJ205 Real Name: Matt Taylor Join Date: Jun 2005 Location: Cousin-Fck, Carolina Posts: 1,474 Wish in one hand and sht in the other...	This could be trouble for me with numerous codes turned off in my ECU with Enginuity... errr, I mean RomRaider. Is this maybe why Perrin and Harmon Motive are putting cats on their '08 WRX/STI downpipes? Perrin seems pretty ademate that their exhausts will have cats.

2008-02-16, 09:56 AM	#7
Double Phister EJ22 Join Date: Mar 2005 Location: Elk Grove, CA Posts: 450 Car: 2005 WRX STi "I'm sideways and in control... I look good."	Anybody know how the ECU determines cat efficiency? I have my wideband in place of the stock rear O2. I'm using one of the analog outputs to simulate the stock sensor. When you remove a cat what changes are seen via the rear O2 that signals the cat is bad or missing? Is it just a wider swing on the output? __________________ Dan - '05 Black WRX STi. My Mods

2008-02-17, 09:38 AM	#8
MPREZIV Token Real Name: Le Stig Afrique? Join Date: Jun 2005 Location: sitting next to a big yellow box Posts: 3,589 Car: 2001 Impreza 2.5 RS Class: 05 TDSP No, I won't work on your car. F your car*	Front O2 sensor switches rich-lean about 30 times for every one switch of the rear, as long as the cat's working properly. If you just remove the cat and were to leave the EM stock and O2 sensors in place, then the front and rear sensors will effectively see the SAME switching ratio, which tells the ECU that everything's gone wrong! __________________ "...these condoms have a topical anesthetic to reduce sensitivity, so you can last longer. What a paradox. You can't feel a thing, but you can f*ck for HOURS..."

2008-02-17, 08:23 PM	#9
nightwalker EJ18 Join Date: Jul 2005 Location: Truckee, CA Posts: 50 Car: 2003 Evolution VIII why?	pffft, you guys are lucky. "OBDII monitors not run yet" fails, try a true emissions test coupled with a strict visual underhood inspection, and test of smog equipment to be in place and properly functioning. Oh how I love California.

2008-02-17, 10:06 PM	#10
Kevin M EJ22T Join Date: Sep 2003 Location: Reno Posts: 9,445 Car: '93/'01 GF6, mostly red Class: 19 FP	How do you think some of the people on this forum ended up in Reno? __________________ FWD is the new AWD

2008-03-01, 10:56 AM	#11
PecoFC EJ18 Join Date: Mar 2004 Posts: 72	hey anyone get their car smog check lately? Im worried now after hearing all these stories.

2008-03-01, 05:42 PM	#12
Tripperfx3 EJ18 Join Date: Jan 2008 Location: Reno (From Kennesaw, GA) Posts: 33 Car: 2003 Apex Silver Lancer Evolution	It will still be the same. I had read about this on EvoM, but didn't understand what was going on, but now I do. I've got a ECU reflash that elimiates the rear O2 sensor, so I'm gonna have to get a universal O2 sensor this year and remove that part of the code.

2008-03-02, 08:03 PM	#13
AWDlaunch EJ18 Join Date: Apr 2007 Posts: 53	i had a catless downpipe, but removed for smog and replaced with the stock cat. no visual, passed with flying colors.

2008-03-04, 09:42 AM	#15
Kevin M EJ22T Join Date: Sep 2003 Location: Reno Posts: 9,445 Car: '93/'01 GF6, mostly red Class: 19 FP	If they check for the monitors to be enabled, yes. Any disabled or altered monitors will show up. If they check. __________________ FWD is the new AWD

2008-03-04, 09:55 AM	#16
cody Candy Mountain Real Name: Cody Join Date: May 2005 Location: Californication Posts: 7,751 Car: 03 Pussy Wagon, now with more pink! Class: TESP OMG Internet!	Well, the good news for me (if they check) then is that my car will run fine on the stock map. I just have to hook the stock boost solenoid back up and install a physical fix for the rear O2 sensor CEL (I already have the UP EGT CEL Resistor Fix in there), then drive around for a week before the check. __________________ Slow and low, that is the tempo.

2008-04-29, 12:53 PM	#17
cody Candy Mountain Real Name: Cody Join Date: May 2005 Location: Californication Posts: 7,751 Car: 03 Pussy Wagon, now with more pink! Class: TESP OMG Internet!	Just got smogged...didn't have to put anything back to stock. Gaye said the only difference is that the certificate that prints out looks different. So as long as you don't have a CEL and your ECU hasn't been reset recently, I think you're still good to go. __________________ Slow and low, that is the tempo.

2008-04-29, 02:01 PM	#18
A1337STI EJ205 Join Date: Jan 2006 Location: Reno, NV Posts: 1,840 Car: Impreza and an Impreza Class: AS / CRS PerfStock "pedal on the right"	I love being in stateline, NV Smog check, what's that ? course both my imprezas have all their stock cats __________________ Fighting uphill battles, one bullet at a time!

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