# o2 simulators?

**URL:** https://forums.speedlife.net/t/o2-simulators/13836
**Category:** NYSpeed Automotive
**Created:** [June 26, 2006, 4:10pm UTC](https://forums.speedlife.net/t/o2-simulators/13836 "2006-06-26T16:10:16Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![66impalass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/66impalass/32/7429_2.png) [@66impalass](https://forums.speedlife.net/u/66impalass)
#### Post date: [June 26, 2006, 8:27pm UTC](https://forums.speedlife.net/t/o2-simulators/13836/6 "2006-06-26T20:27:14Z")

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> [@RobY](#):
>
> Caution with the electronic MIL simulators.
> 
> You will FAIL an OBDII inspection if you have one. The electronic mil simulator forces the ECU into a constant not ready state and the OBDII inspection computer picks up on that.
> 
> The mechanical solutions will pass but they tend to be inconsistent.

not true a good O2 sensor will show a varying voltage in the range that is needed to not through a code. I have pass Il state OBD2 emisions twice with O2 sims and we have had OBD2 scans a lot longer than NY has. I personally use Casper but they hate snow and cold weather

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