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      02-20-2020, 04:32 PM   #993
DavidZ
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Drives: '11.5 E90 M3 6MT
Join Date: Apr 2011
Location: Kensington, MD

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Quote:
Originally Posted by //steve\\ View Post
This doesn't make a lot of sense to me. A stage1 tune should be for a totally stock car and therefore I don't see why it wouldn't be possible for all the readiness monitors to be "ready" I'd think stage1 is just tweaking fueling/ignition tables a bit and likely leaving anything that might fail emissions alone.
That's what I thought too but I could not get my O2 sensors to report as ready. I had been driving on the tune for several months. I reflashed stage 1, cleared codes and drove the specific OBD readiness cycle - watching all sensors as they returned to ready - all except no O2 ready. I asked Alex about it and he reiterated to always flash back to stock for emissions.

Quote:
Originally Posted by Dpc2u View Post
I have Alex's stage 1, and oem exhaust other than a 2.5 pipe mod on factory axle back. All of my readiness checks are fine and I went through emissions here in TN with no issues at all.
Quote:
Originally Posted by Dpc2u View Post
I have Alex's stage 1, and oem exhaust other than a 2.5 pipe mod on factory axle back. All of my readiness checks are fine and I went through emissions here in TN with no issues at all.
Did you verify yourself that your O2 sensors were reporting as ready? Not all states have the same emissions check standards. It's possible some states allow 2 not ready, including O2.

Anyways, it seems we've had different experiences. I know for a fact that I could not pass MD emissions with stage 1. It was just a couple months ago.
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Last edited by DavidZ; 02-20-2020 at 04:46 PM..
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