Passing SMOG with BM3 and MHD?

[swrdply400mrelay]

Tried to search but couldn't find the exact answers.

But if you have BM3 or MHD, can you flash to the original stock map?

Just asking because I hear to pass SMOG they may require ECU testing in the future to see if you are running a different map than stock?


TIA!

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[Janice]

I don’t know, but back in my S2K days, I did a Hondata flash, then returned to a stock flash for smog, and the ecu didn’t know it was reflashed. I’m thinking it may be the same but I can’t tell you for sure. ECU security is insane now.

 

[Evolution]

You will be fine if you flash your stock tune back in. They check for the CVN # and if its different than what it was stock (aka modified tune), you screwed.

 

[swrdply400mrelay]

You will be fine if you flash your stock tune back in. They check for the CVN # and if its different than what it was stock (aka modified tune), you screwed.

Ok so BM3/MHD flashes the actual stock map?

 

[razorlab]

Ok so BM3/MHD flashes the actual stock map?

Only if you go for full flash back to stock. If you are worried, I would reach out to BM3 support and ask about the ability to flash back to stock and have the CVN as stock. They will know what that means.

 

[Eastwood]

You have to revert to your stock flash. They can check and compare your calibration ID versus stock. You can pass with the tune, but if the calibration ID is off, you’ll get flagged later on for a state ref inspection via mail.

It’s been happening to Evo guys the past 2 years. Guys smog with a tune, pass smog and ended up getting state ref summons later on. I flashed back to stock and passed, no state ref notice.

I’m not sure if it will be a problem but I think Smog tests can also compare check sums, so it may see how many times the ecu has been modified. That may post a future problem too.

 

[Erty]

Watching this. May be moving back to SoCal soon and for that reason I haven't tuned yet :/

 

[swrdply400mrelay]

You have to revert to your stock flash. They can check and compare your calibration ID versus stock. You can pass with the tune, but if the calibration ID is off, you’ll get flagged later on for a state ref inspection via mail.

It’s been happening to Evo guys the past 2 years. Guys smog with a tune, pass smog and ended up getting state ref summons later on. I flashed back to stock and passed, no state ref notice.

I’m not sure if it will be a problem but I think Smog tests can also compare check sums, so it may see how many times the ecu has been modified. That may post a future problem too.

So my question is does/can BM3/MHD flash back to the actual stock map?

 

[swrdply400mrelay]

Edited OP with new info found

 

[razorlab]

Did you just ignore my post telling you to contact BM3 support and ask them what the proper way is to flash back to stock CVN with their software?

Their support is great. Use it.

 

[swrdply400mrelay]

Did you just ignore my post telling you to contact BM3 support and ask them what the proper way is to flash back to stock CVN with their software?

Their support is great. Use it.

Thanks for your info. I don’t have either so doing research to find out if you can pass smog and the easiest way to do so.

 

[kaj]

The OBD-II check on 2006 and later cars (based on what I've had to deal with) is not fun. I'm interested to find how easy it is or isn't to return to 100% stock. ROM ID, CVN, etc, etc.
I will not touch this ECU until I know I can put it back for smog or resale purposes.

 

[Erty]

Emailed bootmod3 support. Did not get a clear response regarding the CVN. Their response was "We are a Canadian company and we're unfamiliar with emissions laws in your area."

 

[kaj]

Emailed bootmod3 support. Did not get a clear response regarding the CVN. Their response was "We are a Canadian company and we're unfamiliar with emissions laws in your area."

Yeah. So who wants to be the guinea pig?

 

[swrdply400mrelay]

Updates OP with reply from BM3

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