[hassmaschine]

FWIW if you have MSV70 (2006 only), I can force the monitors on. But you have to send the DME to me for the flash.

[mpaone23]

Originally Posted by rick100

or you could ve found a shop that can make you pass the emission test and keep the headers for another 2 years ...

I had headers on my last car and finding the right shop to do it was never a problem . As a matter of fact I already have a couple of shops that can do my car in case I ran into problems , if I decide to keep the car for 2 more years. I don't see how it would be a big problem in the NY. I had to pay like 120 $ last time I did it on my old civic plus the emission cost, but it was cheaper than removing it and I kept the power in my baby

Dont you think If I could find a shop locally that could do this I would have? Thanks this was a big help.

Originally Posted by hassmaschine

FWIW if you have MSV70 (2006 only), I can force the monitors on. But you have to send the DME to me for the flash.

Well I do have a 2006, but you are about 2 weeks too late considering I just removed my headers....

[hassmaschine]

yeah, sorry - I only just developed it a few days ago.

[rick100]

Originally Posted by mpaone23

Dont you think If I could find a shop locally that could do this I would have? Thanks this was a big help.



Well I do have a 2006, but you are about 2 weeks too late considering I just removed my headers....

no my fault you don't know the right people. Probably better you removed the headers, next time you put in headers keep in mind your emissions may fail as they are illegal so if your emissions were due soon a backup plan would've been nice ....

your back to stock so its all good now

[mtorio83]

I just passed PA State emissions with my AA Headers and a custom ECU tune FWIW

[JuniorB]

Hi,since you went back to stock manifolds are you good now?,was it the headers giving you all this chaos or was it the tune?

[hassmaschine]

It was the headers. Of course it will fail - they dont have cats. And it seems even the expensive flashing tools can't write to the program or boot space over OBD so there's no easy way to make it pass.

[Punisher3.0si]

Originally Posted by hassmaschine

FWIW if you have MSV70 (2006 only), I can force the monitors on. But you have to send the DME to me for the flash.

That's very nice of you.

I'd like to get these headers for my Z4 but I'm not willing to deal with emissions test every two years.

[3002 tii]

Originally Posted by hassmaschine

No it doesnt. AA even says it wont. Thats why its an off road tune.

You're right on website doesn't mention the readiness codes but on the phone / email that's what they told me.

[RyanDavies]

What AA will tell you via email and phone are very different than reality.

[mpaone23]

Originally Posted by JuniorB

Hi,since you went back to stock manifolds are you good now?,was it the headers giving you all this chaos or was it the tune?

Yup, everything is fine and headers/tune were the issue. I was able to get all monitors ready in around 20 miles of normal driving without doing the ridiculous drive cycle.

Originally Posted by 3002 tii

You're right on website doesn't mention the readiness codes but on the phone / email that's what they told me.

Exactly, this was the assumption I was under as well.

[Punisher3.0si]

Originally Posted by mpaone23

Yup, everything is fine and headers/tune were the issue. I was able to get all monitors ready in around 20 miles of normal driving without doing the ridiculous drive cycle.



Exactly, this was the assumption I was under as well.

Sucks that it came to that. I didn't think anything else was wrong with the vehicle. I think the DME didn't like how the 02s were responding with the catless headers. If there is a silver lining here its that atleast you helped out other BMW enthusiasts from getting stuck in the same situation.

[mpaone23]

Originally Posted by Punisher3.0si

Sucks that it came to that. I didn't think anything else was wrong with the vehicle. I think the DME didn't like how the 02s were responding with the catless headers. If there is a silver lining here its that atleast you helped out other BMW enthusiasts from getting stuck in the same situation.

I'm pretty disappointed myself because I really loved the setup for the short time I had it. But you nailed it, my DME hated the tune. I hope that my headache will help the e90post community or at least make people realize that these modifications aren't always as cut and dry as they seem.

[hassmaschine]

It's not that it doesn't "like it". The parameters for the post-cat sensors are obviously not going to be correct without the cats in place, so it will never set the readiness monitors. It doesn't affect power or smoothness at all, but you can't pass emissions.

Theoretically it should be possible to change the parameters of the post-cat sensors so they will set the monitors without the cats, but there are a lot of them which is probably a bit much to tune. My method forces the monitors in software but you need physical access to flash program changes.

[mpaone23]

Originally Posted by hassmaschine

It's not that it doesn't "like it". The parameters for the post-cat sensors are obviously not going to be correct without the cats in place, so it will never set the readiness monitors. It doesn't affect power or smoothness at all, but you can't pass emissions.

Theoretically it should be possible to change the parameters of the post-cat sensors so they will set the monitors without the cats, but there are a lot of them which is probably a bit much to tune. My method forces the monitors in software but you need physical access to flash program changes.

So then how come some people are able to pass emissions if the monitors do not ever get to a ready state? I have seen threads of members that have passed with the catless headers and just the tune....

If you are able to force the monitors on, why can't a company as large as AA do the same?

[hassmaschine]

probably because their emissions laws are different. IE, maybe they just can't have any CELs and are allowed to have some monitors as "not ready".

AA is not going to spend the time and resources to pay somebody to disassemble the software. I can do it because it's a hobby. They wouldn't get their investment back. And many flashing tools can't change the program space anyway..

[Terraphantm]

There's also some liability issues. A real company can get in a lot more trouble for defeating emissions stuff than an individual.

[mpaone23]

Well hassmaschine you are a generous individual, and its people like you that make this the best BMW forum. Take notes people

[Kgolf31]

Originally Posted by hassmaschine

probably because their emissions laws are different. IE, maybe they just can't have any CELs and are allowed to have some monitors as "not ready".

AA is not going to spend the time and resources to pay somebody to disassemble the software. I can do it because it's a hobby. They wouldn't get their investment back. And many flashing tools can't change the program space anyway..

Correct. Multiple states are 7/9 or 8/9 parameter passing states.

[justrokkit]

Would someone explain why there seems to be a time limit for having headers? As I understand it, NY allows one "not ready" code since emissions test only uses the reader, but I'm getting the impression that even if you pass with the primary cats on "not ready," you still have to go back to stock eventually. Do I have this right?

[3002 tii]

Originally Posted by justrokkit

Would someone explain why there seems to be a time limit for having headers? As I understand it, NY allows one "not ready" code since emissions test only uses the reader, but I'm getting the impression that even if you pass with the primary cats on "not ready," you still have to go back to stock eventually. Do I have this right?

NY requires emissions renewal every 2 years and will pass with one not ready. Some folks here can't get rid of the 2nd not ready status (oxygen) and therefore are considering going back to stock in order to pass emissions during the next renewal. If you're one of the lucky ones that can get down to just 1 not ready status then you're fine.

[justrokkit]

Originally Posted by 3002 tii

NY requires emissions renewal every 2 years and will pass with one not ready. Some folks here can't get rid of the 2nd not ready status (oxygen) and therefore are considering going back to stock in order to pass emissions during the next renewal. If you're one of the lucky ones that can get down to just 1 not ready status then you're fine.

Oh, okay. Thanks very much!