transsam

iTrader: (5)

I made the mistake of simply cutting my rear o2 sensors off a few years ago. How fucked am I? Can I keep the codes deleted and get away without the sensors LEGALLY? Do I need to figure out a means of rewiring sensors in? What are my options?

Thanks in advance and I'll see you in SoCal in 3 months!

mannyman84

iTrader: (2)

If u have no cats then u don't need them. But the check engine light will still come on because it thinks the cats are bad.

00SSLS1

iTrader: (7)

I'd get the rears 02s turned off and keep the sensors in place

transsam

iTrader: (5)

I already cut the sensors off, years ago. The current tune has them turned off (obviously), but I am coming down in cam size to pass the sniffer so I will be retuning anyway. With the long tubes off and stock manifolds in place, would it be best to plug in some dummy autozone-ish sensors in the back and keep the tune hiding the lack of rear 02s as it is? Is that something I could get caught for?

Ryne @ CMS

iTrader: (10)

if all the rear 02 codes are turned off it automatically sets that readiness test to complete, therefore that portion of your smog test is fine

transsam

iTrader: (5)

Well that sets me at ease considering I've planned on having you do my tuning since I decided to move to San Diego. I hope to be scheduling with you soon!

BigDaddyBry

iTrader: (15)

My experience going to a "lenient" smog shop about 4 years ago.

My car was close to passing, even without cats, but the fact my rear 02s were deleted, I could not pass. He said with 02 sims I would have been fine.

transsam

iTrader: (5)

What was the specific problem? The non-readiness code? I thought that could be effectively tuned to off as per Ryne @ CMS? What did you do to get it on the road?

BigDaddyBry

iTrader: (15)

I believe the problem was they were not "reading" anything. They were tuned out.

I "paid" to get it on the road. The smog tech was being nice and trying to pass me the traditional way.

Empatho

iTrader: (16)

That's weird, I have always thought that tuning them out would pass you automatically.

BigDaddyBry

iTrader: (15)

My only guess is the machine/computer he was using was telling him the sensors needed to read something, and they were not (because they were tuned out).

Empatho

iTrader: (16)

I'm guessing they were not tuned out properly, unless someone else knows something else about this.

Ryne @ CMS

iTrader: (10)

if all of the rear o2 settings are not deleted (not just the ones that will throw codes) the readiness test will fail.... been down this path quite a few times, if done properly the readiness test will pass

uLs1a

iTrader: (22)

My rear 02 sensors have been deleted for years and I have never had an issue smogging my car

Empatho

iTrader: (16)

Good to hear, I cant wait to bring in my car this April for the m12 tranny swap.

BigDaddyBry

iTrader: (15)

There we go, that makes sense.