Getting off Arrow PCM to Pass Emissions

[cubeman]

Hey folks, Finally got bit and closed a deal on a 2015 Viper with the Viper Exchange Suspension, Headers and exhaust replaced and Arrow II PCM. Of course just recently it was dropped on me this thing won't pass Emissions here in NY so I was given a possible solution (and maybe make more power?) I'd like some feed back overall as I'll have around 30ish days (temp tags) before I need to look at other options.

Option 1?)

Purchase a spare ECU and send it to HPTuners to unlock, then retune car to pass emissions (and possible add these? http://www.viperpartsrack.com/viper-...converters-srt)

Option 2?)

go full outlaw no inspection sticker drive around and pay the tickets

I'd like to start ordering parts asap to tackle this issue. Any assistance would be grand.

[BJG32]

The car didnt come with the OEM pcm?? Thats all you need. 5 minutes to swap them.

Now you'll probably have a CEL with the header mod. Those highflows wont work with headers. They're designed to attach to the stock manifold. Besides that my high flows still gave me a CEL.

[Jack B]

Are you sure it will not pass with the Arrow pcm?

[serpent]

The car didnt come with the OEM pcm?? Thats all you need. 5 minutes to swap them.

Now you'll probably have a CEL with the header mod. Those highflows wont work with headers. They're designed to attach to the stock manifold. Besides that my high flows still gave me a CEL.

What setup does not give CEL?

I'm been getting mixed answers and want to know what I can do (here in cali).

So far I want to swap out exhaust (after cats) on the car but after that I keep getting two stories:
I need high flow cats or ill get CEL

If I want to reduce heat I need to remove secondary cats (i get that). But can I remove secondary cats, running any muffler I want and not get CEL?

[cubeman]

The car didnt come with the OEM pcm?? Thats all you need. 5 minutes to swap them.

Now you'll probably have a CEL with the header mod. Those highflows wont work with headers. They're designed to attach to the stock manifold. Besides that my high flows still gave me a CEL.

No OEM PCM to my knowledge, no photos or ever mentioned just the Arrow PCM. Buying one from a dealer is no big hassle correct?

Are you sure it will not pass with the Arrow pcm?

I'm not 100% sure. If I read correctly the Arrow PCM stops the rear O2's from going into ready status to prevent any codes from being thrown. That's an insta-fail in NY as the test will say "failed, get the 02 sensors in ready". I'm going to see if it passes before I go and spend a few thousand to make it pass but I want a backup for when it does fail.

[ViperGeorge]

The Arrow PCM does not set all of the IM Monitors. Some states, I assume NY based on OP's post, will do a plug in emissions test. If you have a MIL (or CEL as it is also known) or you have certain IM Monitors that are not set or have failed then you fail inspection. The IM Monitors check things like the operation of the O2 sensors, Evaporative Emissions check, and others. The Arrow PCM will show some IM monitors as "Incomplete". This would include downstream O2 sensors.

[BJG32]

What setup does not give CEL?

I'm been getting mixed answers and want to know what I can do (here in cali).

So far I want to swap out exhaust (after cats) on the car but after that I keep getting two stories:
I need high flow cats or ill get CEL

If I want to reduce heat I need to remove secondary cats (i get that). But can I remove secondary cats, running any muffler I want and not get CEL?

Yes. If you keep OEM primary cats, remove secondary cats you should not get a CEL. Exhaust resonator/muffler does not matter. none will cause a CEL.

Some have had luck with belanger high flows, others not. Best option is to keep stock primary cat, cut off secondary, then weld on 2.5 inch pipe to attach yiur exhaust of choice

[BJG32]

No OEM PCM to my knowledge, no photos or ever mentioned just the Arrow PCM. Buying one from a dealer is no big hassle correct?



I'm not 100% sure. If I read correctly the Arrow PCM stops the rear O2's from going into ready status to prevent any codes from being thrown. That's an insta-fail in NY as the test will say "failed, get the 02 sensors in ready". I'm going to see if it passes before I go and spend a few thousand to make it pass but I want a backup for when it does fail.

Try and find the original owner. There is no reason not to include oem pcm with the sale of the car.

Check glove box just in case.

[cubeman]

Try and find the original owner. There is no reason not to include oem pcm with the sale of the car.

Check glove box just in case.

Car has swapped dealers twice, Finding the original owner may prove to be difficult compared to paying $1300ish for a new programmed PCM

[BJG32]

Car has swapped dealers twice, Finding the original owner may prove to be difficult compared to paying $1300ish for a new programmed PCM

Unsure how you will pass inspection. Very curious how it works out. It sounds like hp tuners on your new pcm is the best bet....unless you return headers/cats to stock along with pcm. Hopefully somebody knowledgeable chimes in.

[1Koolasp 16ACR]

If You Do The Out Law Move , That Won't Work , It Will Come Up, And You Will Get a Notice From DMV,That Your Inspection Expired, And They Will Cancel Your Registration, If You Don't Get It Inspected.

[Space Truckin]

What setup does not give CEL?

I'm been getting mixed answers and want to know what I can do (here in cali).

So far I want to swap out exhaust (after cats) on the car but after that I keep getting two stories:
I need high flow cats or ill get CEL

If I want to reduce heat I need to remove secondary cats (i get that). But can I remove secondary cats, running any muffler I want and not get CEL?

I have ARH headers , highflow cats and Arrow PCM and NO CELS. Try Dan Cragin at SPT (626) 588-2882...JM2C

[plumcrazy]

i agree, call dan cragin

[Steve-Indy]

You might call Chuck Tator as I am certain that he is aware of all the NY procedures and requirements. Good luck and congrats on your new Viper.

[cubeman]

You might call Chuck Tator as I am certain that he is aware of all the NY procedures and requirements. Good luck and congrats on your new Viper.

This is great, He's in my county not too far at all.

Thanks for the help guys, I'll tackle this issue and report back on what my results are.

[1.8t]

Arrow PCM will not pass an OBD2 scan. There are readiness monitors that will always remain pending as the Arrow computer turns these systems off. You need a stock ECU. I have scanned my car with both and use the stock ECU to pass emissions(OBD2 scan).

[cubeman]

You might call Chuck Tator as I am certain that he is aware of all the NY procedures and requirements. Good luck and congrats on your new Viper.

An update thanks to you, I'm not sure who I spoke to at Chuck's garage but they answered my questions immediately and their recommendation is get my hands on a stock PCM and see if I can pass emissions. Even with the Headers, Possible highflows and catback if the rear O2's are still in it should pass. If not, then start throwing money at either HPTuners unlock/tuning or start swapping parts. The main thing is to get this inspected as I have around 35-38 days depending on my timing on riding around with temp tags, then registering the car and having a 10 day inspection window.

[1Koolasp 16ACR]

You Have No CEL, Because Of The Arrow , Shuts Off The Rear O2's, Put Your Stock PCM In, And You Will Most Def, Get A CEL.

[cubeman]

You Have No CEL, Because Of The Arrow , Shuts Off The Rear O2's, Put Your Stock PCM In, And You Will Most Def, Get A CEL.

Spacers will be tried, if that fails then start swapping parts.

[99RT10]

There is one more option you have not considered. Move to a state that do not have inspections.

[RedTanRT/10]

I have ARH headers , highflow cats and Arrow PCM and NO CELS. Try Dan Cragin at SPT (626) 588-2882...JM2C

Yeah no CEL, but you'll never pass CA emissions. (Dan will verify that) Hope you still have the stock ECU

Car has swapped dealers twice, Finding the original owner may prove to be difficult compared to paying $1300ish for a new programmed PCM

Cubeman, buy the stock ECU. You'll need a dealer or shop to clear all the stored codes before you make the swap. You will also need to drive the car with the new ECU to get the emissions systems to "read ready." Do a google search on emissions readiness, it's not as simple as putting 50 miles on your car to get it ready. Make sure when you drive with the stock ECU you stay out of 5th and don't lug the car, that would cause a CEL.

good luck, Mike

[Jack B]

Yeah no CEL, but you'll never pass CA emissions. (Dan will verify that) Hope you still have the stock ECU





Cubeman, buy the stock ECU. You'll need a dealer or shop to clear all the stored codes before you make the swap. You will also need to drive the car with the new ECU to get the emissions systems to "read ready." Do a google search on emissions readiness, it's not as simple as putting 50 miles on your car to get it ready. Make sure when you drive with the stock ECU you stay out of 5th and don't lug the car, that would cause a CEL.

good luck, Mike

They will also need to do a relearn, that requires the dealer.

[Dman]

Do you have high flow cats or is it catless? This is your only issue to solve.

If you have headers and highflow cats, then you're fine. Arrow PCM WON'T pass OBDII, but yea, if you don't have the stocker, get a new PCM, dealer will pair it up, and you'll pass. I had headers, highflows, Arrow, etc setup, for emissions I just swapped the PCM which takes 5 mins or less and drove it for 2 days to get the cycles in and it passed perfectly, then swap the Arrow back.

If you're catless, then you've got a challenge, I'm not aware of anyone being able to not have a CEL or a pending code (which will fail you) on OBDII with a catless setup.

You save some time, and buy a OBDII scanner, I did and it will do an OBDII mock emissions test and let you know if you'll pass or fail before you go in, I did this and drove in with confidence and passed.

[cubeman]

Thanks guys, a vendor is offering to ship me a PCM preprogrammed for my car for an additional charge (Not sure on sponsor rules or if they are a sponsor so won't name em). The dealers around me are pretty lame unless I drive up a bit to Meadowlands to see CJ. Does the "relearn" require a dealer no matter what or will what the vendor be supplying me be plug and play?
For the cat thing, I'm pretty sure this car is using stock or high flows.

[Space Truckin]

Does the "relearn" require a dealer no matter what or will what the vendor be supplying me be plug and play?
For the cat thing, I'm pretty sure this car is using stock or high flows.

Yes.....FWIW