Here's the skinny... hopefully someone has helpful insight on this.

I have a 2013 Mini Countryman All 4 S.

3 or so months ago I removed the resonator, 2nd catalytic converter, muffler, and added the NM Engineering intake.

I never had any issues, no CEL, nothing.

Randomly while driving the other day, my CEL came on, persistent and yellow.

Here are the things I did to try and resolve it:

1. Disconnected the battery (both connections) for a couple hours.
2. Touched the positive and negative connections together for 10-15 seconds.
3. Got into the car's computer by holding down the odometer reset and completely reset the ECU.

Regardless of all of these things, every time I started the car, the light was on.

Note: I haven't lost any power, nor noticed any difference in the car's performance at all.

I took the car to a shop and the code that came up was:

37DE - Engine ventilation, heating, triggering: open circuit

My question is to see if anyone has any idea why this might be happening.

Guy at the shop, which is a very reputable shop, said that he's pretty sure this has nothing to do with the cat or muffler delete since the main cat with both O2 sensors are still in tact.

He says it MIGHHTTTTT be the intake but even then, this is an NM Engineering intake that many people use on their Minis.

The reason I don't want to just take it to Mini is because it's a lease. I know, I know... why did I do this stuff to a leased car... because I intend on keeping the car.

Any advice on the code issue?

 

I never heard of touching the positive and negative contacts together, I would think that would be dangerous, but I guess not.

You COULD put the OEM intake back on and see if the light goes away.

 

Thanks for the reply.

Yeah, the touching the connections together is a common practice to reset the system faster but unfortunately, no dice.

I don't really want to put the OEM intake back on because it just doesn't make any sense why the intake would do this when it's such a basic mod, and it took over 3 months to even get a CEL.

 

I don't think he shorted the battery terminals (that would be bad) but he touched the wires together with them not being connected to the battery.

 

Exactly.

 

Learn something new everyday!!!

 

If you are in an area where the temp has changed that could be triggering the issue. Incoming air temp and mass flow are impacted by you guessed it incoming air temp and how the engine handles warm-up cycle. So you may be fine until it gets cold. Of course you may live in SoCal or Florida and I am way off.

 

Loose gas cap?

 

Wow. Your assessment is on point and I didn't even consider it. My only question is, would that also be valid from warm to cold?

I live in the Bay Area and in 24 hours last week we went from the lowest temp of 60 degrees to 27-35 degrees. And we've consistently now had this cold front for a week now. And this all goes in line with when the light came on.

They say we will start getting back to normal temps by Friday. Will the light then automatically go off on its own you think??

 

That was the first thing I checked, and it wasn't loose.

 

did the shop clear the code ?

 

Cleared it and it came right back like a bad case of gonorrhea.

 

Only familiar with the former, not the latter. Probably a good thing.

 

Bumpity bump bump.

 

Some time back, there was a thread about an owner who had a CEL, that turned out to be something to do with their after market intake (don't recall which intake). It had something to do with a ground wire that did not get attached, or tightened done properly. I remember the thread because the owner got charged a decent sum of money for the dealership to fix something so easily. Not 100% about it being a ground wire, but is was definitely due to the intake.

 

Interesting. Thanks for that. Gonna check mine just to be sure.

 

Ok... I have an update on this situation.

I gave up and just took the car to the dealership, even though it's a lease and I've modified it.

I got lucky and got a great service advisor who took the car in and called me and said that the 37DE permanent heating and ventilation fault I'm getting is definitely related to the install of the intake.

However, the issue he told me that is happening is that 1 these 2 mysterious cables that are capped off and go to nothing, rubbed against something hot in the engine and shorted out.

He didn't tell me what these cables are for, or where they went to on the stock intake, or if they even went to anything but from looking at it, they are BOTH on the same loom as the MAF and CAM Position sensors.

CAN ANYONE PLEASE TELL ME WHAT THE HELL THESE ARE, WHY THEY ARE CAPPED OFF, WHAT THEY WENT TO BEFORE, AND HOW IN THE HELL I CAN REPLACE THE BURNT ONE???

 

Not sure what exactly they are plugged into...looks like sensors of some type...

:EDIT: Looks like I got one of those (upper one) wrong...