2.0T P2C90 Mishimoto Catch Can Error Code

[lalalofsky]

I have been running the 2.0T intake for over 10k miles and recently added the catch can i bought from a forum member. It came in perfect condition showing no signs of being used. I installed it and have had no issues. Today i was out driving and it threw a code while i was in the parking lot. my elevation is currently 866 feet Above sea level, i read through the forum and saw in 2019 there was extensive talk about this mostly pertaining to those over 4K. I dont see any way to directly message @Mishimoto or comment on the catch can thread. Is there a solution yet?

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[OverIsland]

I had the same issue for a while and resolved it. I first added steel wool to my large catch can and that fixed my issue, but I also changed to the smaller Mishimoto catch can. From what I read the larger volume catch can actually reduces vacuum to the point that the system sees an issue.

The sent me this although when I search it on their page I get no results : 1 Mishimoto 1518BK Assembled Direct fit 2-port Catch Can, Black

 

[rubistina]

We have the same issue. Waiting on @Mishimoto to get back to us..

 

[DHW]

Any news on this?

I’ve had the Mishimoto on my 2018 2.0t for a few years now with no issue. A few days ago I decided to check the can because it’s never been emptied. If I had turned the can upside down, it might have had 3 small oil drops come out. Maybe. Put it back on no problem but a few days later, I have this code pop up. Cleared it with the Tazer, but what can I expect?
So the steel wool thing works? How much do you put in?

 

[7c102c600853ce38121]

If it had three drops of oil after few years of use, then why bother having it?

 

[oldcjguy]

These new engines are very sensitive to changes in pressure and flow on the PCV system. The code may not come up again. If it does check the hoses and connections for leaks. I have a different catch can system and mine through that code a lot at first. I have a dual catch can system. It's the dirty side can that trips the code. I put some one way valves in the lines and moved them closer to the sensor. That seemed to help. Eventually the system seemed to "learn" the new air flow and stopped tripping the code.

On a side note, you definitely should see oil in there after "years". No matter how good the factory baffles are oil gets by. Adding steel wool should help. 1. It will take up some area in the can and maybe see less vacuum drop, and 2. it will give more area for oil to condense onto as the oily air passes over it helping to separate oil from the air. My clean side can gets almost 0 oil in it, but the dirty side (the side that sees manifold vacuum to the PCV valve) can sees some duty Over the last 17k miles with the catch can installed, I've emptied the can into an old coffeemate container. I have about 2-3 inches of oil in that container. Not a lot, but I'm glad it's not going back into my intake. Some people say catch cans aren't worth it, and maybe they aren't, but I'm glad I installed mine.

 

[DHW]

On a side note, you definitely should see oil in there after "years". No matter how good the factory baffles are oil gets by. Adding steel wool should help. 1. It will take up some area in the can and maybe see less vacuum drop, and 2. it will give more area for oil to condense onto as the oily air passes over it helping to separate oil from the air. My clean side can gets almost 0 oil in it, but the dirty side (the side that sees manifold vacuum to the PCV valve) can sees some duty Over the last 17k miles with the catch can installed, I've emptied the can into an old coffeemate container. I have about 2-3 inches of oil in that container. Not a lot, but I'm glad it's not going back into my intake. Some people say catch cans aren't worth it, and maybe they aren't, but I'm glad I installed mine.

Well, "years" may have been misleading, It's probably been 1.5 to, at most, 2 years. And I agree with you on whether catch cans are "worth it". Kinda like the gun I keep in the Jeep, I'd rather have it and not need it than the other way around.

 

[rubistina]

We were never able to resolve our issues so we ended up pulling the catch can and sending it back to Mishimoto. At altitude, the error was consistent.

 

[Shibadog]

This-a solution in search of a problem. Not trying to be a jerk, but why install a mod to fix a problem that’s not been shown to be a problem? I’ve yet to see anything that indicates a need for these on a 2.0 Jeep, yet I Have seen numerous reports of codes and similar as a result of installing a can.

 

[jjvincent]

This-a solution in search of a problem. Not trying to be a jerk, but why install a mod to fix a problem that’s not been shown to be a problem? I’ve yet to see anything that indicates a need for these on a 2.0 Jeep, yet I Have seen numerous reports of codes and similar as a result of installing a can.

Remember, there are hundreds of thousands of people out there with these engines in their FCA products. They pretty much never use the correct oil or even change it when they need to. Yet never a problem. On the intranets, it's a major issue and thus needs to be addressed for about 100 people in the US alone. Thus, a product is made and it makes people happy.

Take this scenario and you'll see it across the intranets on the various forums, especially when it comes to DI motors.

I remember back in the day when you had to install oil coolers on engines to keep the oil from "breaking down" due to excessive temperature. Yet today, rarely a mention of it. I guess it moved onto catch cans.

 

[DHW]

In the event anyone on here is still having issues, wanted to update. Mishimoto recently sent me the smaller can (charged me $15, but sent me a complete new can setup, not just the can itself). I just swapped my existing can with smaller one (not the entire new setup) and I've had no issues since.

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