[Will Delarosa]

Hello I recently installed the VTT crank hub on my M2 Competition and when filling the engine coolant it spilled and I figured meh not a big deal I'll wash it off. Unfortunately after starting car I had 5 codes all related to terminal 15 short to ground and O2 sensor heating short to ground or low voltage.

Turns out the ISM which is a junction box that houses terminal 15 which is located right by the coolant revisor is not water proof!! So it got fried. If you spilled water or coolant in this area and now you have these codes odds are the ISM is fried just like mine. It's super simple to install a new one and after doing so no more codes! Hope this helps anyone I'll attach a picture of the ISM

[IcewaterPete]

Good to know. Sorry you had to learn that the hard way.

[RocketBoots]

Thanks for the tip!! I'll have to keep this in mind when I detail my engine bay.

[W///]

Did you spray directly into the engine bay, or were you misting it? I normally put plastic bags over items like alternators but most of the other cars have more room in the engine bay. This is good to know for sure though!

[Will Delarosa]

Originally Posted by W///

Did you spray directly into the engine bay, or were you misting it? I normally put plastic bags over items like alternators but most of the other cars have more room in the engine bay. This is good to know for sure though!

Just did a quick engine bay spray down nothing high pressure and I never focused water on the electronic components especially in this section of the engine bay. Literally something I do all the time to other cars with zero problems definitely taking extra care in this section of the engine bay of this car moving forward

[Twonice2485]

Same thing happened to me while my mechanic did the VTT V2 crank hub, but I got different codes , disregard the fuel mixture codes as I'm in the process of tuning for e85 😂

[Will Delarosa]

Originally Posted by Twonice2485

Same thing happened to me while my mechanic did the VTT V2 crank hub, but I got different codes , disregard the fuel mixture codes as I'm in the process of tuning for e85 😂

Power management code tells me it definitely could be the same thing although you'd have to run further checks to see. I've hear of guys also getting a code that says battery discharging too quickly or something that was the same thing. As for the valve tronic codes I'm not sure if they are related. Did you replace ISM?

[Will Delarosa]

Originally Posted by Twonice2485

Same thing happened to me while my mechanic did the VTT V2 crank hub, but I got different codes , disregard the fuel mixture codes as I'm in the process of tuning for e85 😂

Your valve tronic is definitely plugged in all the way?

[Twonice2485]

Originally Posted by Will Delarosa

Your valve tronic is definitely plugged in all the way?

Hmm 🤔 didn't check , but my mechanic is sure that the Ism is the issue

[Twonice2485]

Originally Posted by Twonice2485

Hmm 🤔 didn't check , but my mechanic is sure that the Ism is the issue

I'm going later tonight to replace the ISM , I'll let you know later tonight if that's the issue, he did tell me that he spilled coolant on it and he was sure it's going to go bad and the next day was when I got the codes

[Will Delarosa]

Originally Posted by Twonice2485

Hmm 🤔 didn't check , but my mechanic is sure that the Ism is the issue

Yeah ok lol if it's the ISM he probably did what I did, over flowing the coolant nice 😂

[Twonice2485]

Originally Posted by Will Delarosa

Yeah ok lol if it's the ISM he probably did what I did, over flowing the coolant nice 😂

Yup that's exactly what happened, dried up coolant was all over my engine bay the day after

[Will Delarosa]

Originally Posted by Twonice2485

Yup that's exactly what happened, dried up coolant was all over my engine bay the day after

Man I'm sorry to hear that that's why I do my own work so when there is an oppsie I have no one to blame but myself haha

[Twonice2485]

Originally Posted by Will Delarosa

Man I'm sorry to hear that that's why I do my own work so when there is an oppsie I have no one to blame but myself haha

Thanks, he ordered an ISM for and is doing the work for FREE99

[Twonice2485]

Originally Posted by Will Delarosa

Your valve tronic is definitely plugged in all the way?

So the valvetronic was plugged in all the way, ISM was replaced but the valvetronic codes are still present, F my life as I was supposed to get a dyno tune on Thursday 😩

[chmura]

How much was the ISM module to replace? I did a quick search looks like they are $170.

[Twonice2485]

Originally Posted by chmura

How much was the ISM module to replace? I did a quick search looks like they are $170.

Not sure , my mechanic did it for free including labor

[Twonice2485]

It's really not hard to replace either

[Will Delarosa]

Originally Posted by chmura

How much was the ISM module to replace? I did a quick search looks like they are $170.

I got one for 120 on FCP Euro

[Will Delarosa]

Originally Posted by Twonice2485

So the valvetronic was plugged in all the way, ISM was replaced but the valvetronic codes are still present, F my life as I was supposed to get a dyno tune on Thursday 😩

Hopefully you can get it fixed let me know what it was!

[Twonice2485]

Originally Posted by Will Delarosa

I got one for 120 on FCP Euro

Lifetime warranty!!!

[Twonice2485]

Originally Posted by Will Delarosa

Hopefully you can get it fixed let me know what it was!

Most definitely