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Old 10-20-2015, 04:18 PM   #1
iSki123
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Default Failed emissions. UGH

Just recently, I had returned the car to stage 2 93 octane. Maybe that has something to do with my emissions system not being ready?

I'm the third owner of this car - I bought it tuned by somebody else. I don't know who tuned it. More so, I don't know how I can force readiness.

Attached is a picture of my results:



Any help would be appreciated.
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Old 10-20-2015, 04:37 PM   #2
MrTris
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They plugged in, right?

If you had a CEL of any kind, stored or otherwise, it'll pick that up, and fail you. Otherwise, standard Cobb OTS Stage2 maps will pass emissions, no problem.
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Old 10-20-2015, 04:54 PM   #3
iSki123
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Quote:
Originally Posted by MrTris View Post
They plugged in, right?

If you had a CEL of any kind, stored or otherwise, it'll pick that up, and fail you. Otherwise, standard Cobb OTS Stage2 maps will pass emissions, no problem.
No CEL of any sort. And yes they did plug me in via OBD2.

However, I did re flash my car just recently. Do you think that's why I ain't ready?

PS: I have an nvidia downpipe!
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Old 10-20-2015, 06:29 PM   #4
181stLeader
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Reflashing your car resets your ecu and that is exactly why you failed. It takes time for the various readiness monitors to become ready. You can usually get them to all go ready by driving the car at light throttle on the highway staying at 60-65 mph for 5-10 mins.(no WOT!, light throttle only!)
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Old 10-20-2015, 07:29 PM   #5
iSki123
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I just re flashed from my 91 stage 2 tune to my 93 stage 2 tune.

The Cobb wasn't showing any codes at all. But when I used my code reader I picked up on a trouble code:

p0037

Not sure if this is the reason why I'm failing my tests or not?
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Old 10-20-2015, 08:26 PM   #6
quazimoto
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Default Failed emissions. UGH

You are failing because the system is "not ready". Not sure if Cobb has the ability but Opensource software can force readiness. Yes an O2 sensor code can keep the system from being ready.
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Old 10-20-2015, 08:38 PM   #7
iSki123
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I'm not sure how I can go about that route.

I've heard of people using romraider to force ready their ECU's. Although, I've seen people get bricked by doing this before.

Some more insight/instructions would be helpful.

- John
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Old 10-21-2015, 09:37 AM   #8
iSki123
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*bump*

Really wish I could get more answers regarding this!
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Old 10-21-2015, 09:43 AM   #9
MikeG4936
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Quote:
Originally Posted by iSki123 View Post
*bump*

Really wish I could get more answers regarding this!
C'mon man.... Fix your car, delete the code, and drive on the highway for 15 minutes...
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Old 10-21-2015, 09:49 AM   #10
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You do or do not have a P0037 code?

How long ago did you flash/reset the ECU? I'm not talking days, but miles.
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Old 10-21-2015, 10:12 AM   #11
iSki123
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It's been about a good 40 miles since I reflashed it!
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Old 10-21-2015, 10:32 AM   #12
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Quote:
Originally Posted by iSki123 View Post
It's been about a good 40 miles since I reflashed it!
You said you have an accessport. A recent firmware update has added in an I/M readiness monitor. If you go to the troubleshooting menu of your accessport, you can see whether or not your emissions monitors are ready.

https://static.cobbtuning.com/suppor...3-SUB-002.html
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Old 10-21-2015, 03:12 PM   #13
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Quote:
Originally Posted by iSki123 View Post
It's been about a good 40 miles since I reflashed it!
You've not done near enough driving to have it ready.
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Old 10-21-2015, 03:17 PM   #14
iSki123
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Diving 200 highway miles and reporting back.
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Old 10-21-2015, 07:47 PM   #15
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Quote:
Originally Posted by iSki123 View Post
I'm not sure how I can go about that route.

I've heard of people using romraider to force ready their ECU's. Although, I've seen people get bricked by doing this before.
That makes no sense. A reflash is a reflash whether it's Cobb or Opensource. Them same potential risk is there. I easily had over 50 reflashes on my bugeye with no issues.
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Old 10-21-2015, 08:11 PM   #16
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Quote:
Originally Posted by quazimoto View Post
That makes no sense. A reflash is a reflash whether it's Cobb or Opensource. Them same potential risk is there. I easily had over 50 reflashes on my bugeye with no issues.
What risk are we speaking about exactly?

PS: Drove 140 miles since my last tuning flash - still no dice.
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Old 10-22-2015, 10:05 AM   #17
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Quote:
Originally Posted by iSki123 View Post
I'm not sure how I can go about that route.

I've heard of people using romraider to force ready their ECU's. Although, I've seen people get bricked by doing this before.
Quote:
Originally Posted by iSki123 View Post
What risk are we speaking about exactly?
The AP can "brick" and ECU just the same as Opensource. Regardless the P0037 is a bad heater element in the O2 sensor. Replace the sensor and move on.
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Old 10-22-2015, 10:44 AM   #18
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Since you bought it tuned from someone(I'm assuming modded as well), you do have a catted downpipe correct? I know Invidia makes catless models.
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Old 10-22-2015, 02:37 PM   #19
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Quote:
Originally Posted by iSki123 View Post
What risk are we speaking about exactly?

PS: Drove 140 miles since my last tuning flash - still no dice.
Not positive, but it sounds like people are implying it is mileage distance that 'resets' the thing, or readyness, or whatever you call it.
But I'm pretty sure it is a combination of mileage, AND actual cycles.
So if you just go on one super long drive it doesn't help, you need something like 7-10 distinct trips of maybe 10 miles each.
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Old 10-23-2015, 11:17 PM   #20
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Keep driving it. Each monitor has to meet its own criteria for being ready. There are scan tools which can give you status of each. Catalyst and o2 monitor take a while, hence they weren't ready when you went for inspection.

The o2 monitor uses the rear o2 to judge whether the front o2 is working right. The rear o2 also is used to judge whether the cat is dead (catalyst monitor).
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Old 10-26-2015, 09:09 PM   #21
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I've heard that turning the defrosters and AC on and off a few times also serve as readiness triggers for the ECU.

You also need a number of key turn cycles.
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Old 10-28-2015, 09:11 PM   #22
iSki123
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I currently have no check engine codes. Apparently, an access port can throw false positives. Which is why my code reader told me I didn't have a code while my access port said I did.

I've driven the car on two full tanks of gas. Still - no emission status is ready. I wish there was another Illinois member that could ready all my IM monitors instead of jumping through all these hoops.

At this point, I'm extremely clueless what I should do next.
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Old 10-31-2015, 06:08 PM   #23
iSki123
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Just drove another driving cycle. Still have several "Not Ready" statuses.
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Old 11-18-2015, 01:27 AM   #24
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I've had this work on other cars, but I haven't tried it on a Subie yet but the logic stands. If you go drive it and get it warm, then reset the ECU with a reader or pulling the negative terminal and holding the brake (clears any power remaining in caps) then go drive it on the highway for a bit it should check readiness sooner. Since the car is already at operating temp it should only take a couple cycles of ~30-40 miles to check readiness. I usually drive somewhere, turn it off, back on and go home or to the inspection place and it's good to go.
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Old 11-18-2015, 06:35 AM   #25
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Quote:
Originally Posted by quazimoto View Post
That makes no sense. A reflash is a reflash whether it's Cobb or Opensource. Them same potential risk is there. I easily had over 50 reflashes on my bugeye with no issues.
I've flashed my oem ecu >2k times over the last 10+ years...

fwiw
ken
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