Hello Everyone,

My car have catless DP , No 2nd cat and tuned by Manic stage 2 due to eliminated all CEL from dash. Do you guys think my car will pass inspection(emission test)? If not, what do I need to do?


thank you

 

According to this site, they will check your OBD2 for emission related faults and
readiness.
https://www.dmv.org/ma-massachusetts/smog-check.php
http://massvehiclecheck.state.ma.us/...sions.html#obd
I'm pretty sure they will pick up codes that they won't like.
You might need to put a working cat and O2 sensors back in and drive for a proper
cycle for the monitors to indicate emissions testing readiness and no emissions
related codes.

 

OH thats sound bad, I didn't keep the OEM DP. Is there the solution for that problem?

 

Which Downpipe do you have installed and who did the tune?

 

I have CNT catless downpipe, I got tune from local Manic dealer in MA

 

Front downpipe with cat - 48 state legal
https://www.ecstuning.com/b-magnaflo...ter/49350~mag/

Back pipe with 2nd cat
https://www.ecstuning.com/b-afe-part.../47-46302~afe/

OEM parts are over twice these prices
I'm assuming the R56 is a Cooper S.

CNT also makes a catted downpipe for $350 but it isn't street-legal and they warn it may throw CEL codes.

 

Did you get the SPS switch. According to my Manic dealer, he said switch it to stock 1 mile from the emissions place and it should pass.

Yeah, it has to be the OEM 800 cell Catted DP or else the idiot light pops on

 

if you fail the inspection - gonna be tough to pass..likely have to grease the wheels at the inspection station (if you know what i mean)

if you fail the sniffer test - put 1-2ga of E85 into a full tank of premium gas and you will pass with flying colors (put many a boosted engines through SMOG, with a bit of ethanol in the system)

 

So are you saying if you have a catless downpipe you can run E85 in your car and go theu emissions and nothing shows up (no cels's, trigger on exhaust on the detector they stick in your tail pipe)? I just want to know if this is the SECRET to pass, I live in MD.

 

It works in CA..and I don't know of a state with harder restrictions. *CEL from a catless DP can be a nuisance..have you tried a spacer washer on your O2 sensor?

 

NY does the inspection via the OBD2 and the state regulated visual inspection. The Catalytic CEL will fail you. The o2 Spacer/Bung is a shot in the dark. NY won’t do the sniffer test unless your car is pre OBD2 or if you have a faulty OBD2 plug and that’s only under special circumstances

 

I am going to ask Manic dealer about that. If I can pass by switching SPS to map 1

 

I like to know too.

 

It looks like in Massachusetts you're allowed to have one monitor "not ready" and still pass inspection. As long as the O2 sensor is your only not ready monitor and you don't have a CEL you should pass. Same in NY where I live.

The O2 doesn't even really read "not ready" with the Manic tune. It's put in a permanent incomplete state as if you just cleared the codes and haven't done a full drive cycle yet.

I think it's worth a shot just going and getting an inspection as is. No reason to do work if you don't need to.

 

Any update on going thru your emissions test and using map 1 via SPS?
I want to know of a solution that will pass before I pull the trigger on getting a catless DP. Crossing my fingers its just a flip of a switch and you go thru passing with no problems.

 

You can trick the system if you put the SPS to stock so the Codes with be "ready". Then clear all codes with a reader 1/2 mile from inspection. The CEL will take 5-40 miles to trigger. It's not a perfect system but it works.

 

For those of you who haven’t seen the SPS switch, I’ve added a couple of attachments to help

 

... but from my understanding, clearing the codes will reset the readiness monitor flags and it will
take a successful drive cycle without codes thrown to get them ready again.

 

I got the sps from Mario.
Works great.
Ben

 

Great going with this MJ with the chart! I haven't ordered mine yet, still getting all my parts and was VERY hesitant on getting a catless DP, but im still gathering facts on how to DEFINITELY PASS emissions without having to swap my DP back to OEM.

 

Anyone have an answer on this? Just failed twice only Stage 1 map B. Can I just put it back to stock 1 mile before entering the emissions place and it will work? Or do I have to clear everything with my scanguage, switch to stock and drive for 50 miles? This is a giant PITA for a completely stock exhaust vehicle.

my catless Evo passed with flying colors years ago... what gives!!

 

What state do you live in?

 

Ok here is my update since my last post. I've since upgraded to Stage 3 and just recently had to go thru emission in MD.
Even with the software hiding my CEL my mechanic said his scantool could still see a fault which would make me fail.
I forget the code number but it definitely was in relation to having NO CAT. This resulted from my Akrapovic Downpipe!
He would clear it, and id drive for about 10 minutes, then comeback and hook up the scantool. No CEL showing on my car dash, but the code for the CAT showed up again!
I even have a custom 3in full exhaust with no cat but I'm told emissions doesn't read the 2nd cat only the 1st. So without changing my software back, I put the stock downpipe back on, cleared all the codes via scan tool, then drove 30 minutes then went to emissions and PASSED! I'm not sure whats up with the Manic software, but I have RPM Stage 3 software installed and emissions didn't notice a thing.

 

I live in New York.

 

I'm also in NY and I'm running a Catless system on Manic Stage2 and I've passed Inspection with no issues. You're allowed 1 "Not Ready" fault. So there has to be more than just the Catless causing a fault