Intercooler spiking ambient temp sensor

06-03-2016, 12:09 PM

lol no

The answer: you dun goofed.

jwebb335xi · 06-03-2016, 12:30 PM

Quote:

Originally Posted by Snypa

Just an update....the issue remains. Switched from COBB to MHD and still experiencing the same symptoms. Only thing I can assume now is that because its the 7" intercooler taking in more hot air and possibly letting off too, its spiking the ambient sensor thus making the fans come on. While sitting int he car the other day, temp gauge read 100 and it stayed constant with the rad fans on blast. 1/4 of my intercooler is also hidden behind the lower part of my bumper which makes me to believe that it can get more air.

can you relocate the sensor a bit to get it further away from the FMIC? sounds like it's artificially heating the area around the sensor...

Snypa · 06-04-2016, 11:29 PM

Quote:

Originally Posted by FCobra94

lol no

The answer: you dun goofed.

?? not sure I understand.

Snypa · 06-04-2016, 11:32 PM

Quote:

Originally Posted by jwebb335xi

can you relocate the sensor a bit to get it further away from the FMIC? sounds like it's artificially heating the area around the sensor...

Yeah, this is what I think is happening. I might be changing bumpers soon so i'll likely do everything once OR i can just live with it being that I know or have an idea what the issue is. How this has never happened to anyone else with the 7" intercooler is beyond me.

Thanks Again

JF335is · 06-09-2016, 09:22 PM

I'm running a 9" cx racing intercooler and have the same exact problem. I definitely think the intercooler being much bigger than stock is cutting air flow and reading much higher than normal. I will be relocating the sensor tomorrow and hopefully will fix the obnoxious fan from running like a jet engine in this terrible FL weather

Snypa · 06-10-2016, 07:21 AM

Quote:

Originally Posted by JF335is

I'm running a 9" cx racing intercooler and have the same exact problem. I definitely think the intercooler being much bigger than stock is cutting air flow and reading much higher than normal. I will be relocating the sensor tomorrow and hopefully will fix the obnoxious fan from running like a jet engine in this terrible FL weather

If you have the time take some pictures when you're at it. I would love to see how close it is to the intercooler and where you relocate.

Thanks

lightning · 07-03-2016, 11:23 AM

Hmm.. Any updates on this?

Snypa · 07-03-2016, 02:40 PM

Quote:

Originally Posted by lightning

Hmm.. Any updates on this?

None on this side.My aim is to get an M3 bumper and while changing relocate the sensor. Are you having similar issue?

lightning · 07-03-2016, 11:05 PM

Quote:

Originally Posted by Snypa

Quote:

Originally Posted by lightning

Hmm.. Any updates on this?

None on this side.My aim is to get an M3 bumper and while changing relocate the sensor. Are you having similar issue?

Yes, with my VRSF 7"

Snypa · 07-04-2016, 03:09 PM

Quote:

Originally Posted by lightning

Yes, with my VRSF 7"

Yup...same intercooler I have. I think the only fix to this is to relocate the sensor. Do you still encounter high temp readings inside while on the highway? Mine goes down on highway, but surface streets and traffic....fans start racing and acting crazy.

lightning · 07-04-2016, 06:54 PM

Quote:

Originally Posted by Snypa

Quote:

Originally Posted by lightning

Yes, with my VRSF 7"

Yup...same intercooler I have. I think the only fix to this is to relocate the sensor. Do you still encounter high temp readings inside while on the highway? Mine goes down on highway, but surface streets and traffic....fans start racing and acting crazy.

Exact same symptoms

Snypa · 07-04-2016, 08:14 PM

Quote:

Originally Posted by lightning

Exact same symptoms

What year car do you have? You might also need a better bumper....one that allows more airflow....through the front.

lightning · 07-04-2016, 11:11 PM

Quote:

Originally Posted by Snypa

Quote:

Originally Posted by lightning

Exact same symptoms

What year car do you have? You might also need a better bumper....one that allows more airflow....through the front.

I have a 2011 BMW 1M coupe

Snypa · 07-05-2016, 02:22 PM

Quote:

Originally Posted by lightning

I have a 2011 BMW 1M coupe

Yeah. Try relocating the sensor or just live with it like i'm doing until I get chance to relocate and switch bumpers. The only thing that makes sense to me is that with the bigger intercooler and heat coming off it, its spiking the sensor.

JF335is · 07-11-2016, 11:36 PM

I relocated the sensor right behind the kidney grills to get actual air flow. I now get proper readings for ambient temp as before the intercooler was definitely spiking the temperature. Solved the constant jet engine sounds due to the extreme heat lately in FL and the fmic. I'll post some pictures tomorrow

Snypa · 07-20-2016, 09:21 PM

Quote:

Originally Posted by JF335is

I relocated the sensor right behind the kidney grills to get actual air flow. I now get proper readings for ambient temp as before the intercooler was definitely spiking the temperature. Solved the constant jet engine sounds due to the extreme heat lately in FL and the fmic. I'll post some pictures tomorrow

Glad we could help. Pictures appreciated as i still haven't done mines.

Thanks

JF335is · 07-23-2016, 12:11 PM

Here's a couple of pictures of where I moved the sensor. Hope it helps

Snypa · 08-10-2016, 09:55 PM

Great idea....once i get to doing this. Thanks JF335is

335is-dct · 08-10-2016, 11:30 PM

Ambient air temps won't affect when your radiator fan kicks on... That is determined by the coolant thermostat.

Snypa · 08-11-2016, 12:51 PM

Quote:

Originally Posted by 335is-dct

Ambient air temps won't affect when your radiator fan kicks on... That is determined by the coolant thermostat.

Interesting. So based on my situation, what would you say is the issue? Its still doing it and only started after the bigger intercooler was installed. JF335is moved his ambient sensor and doesn't have the issue anymore. I'm yet to make any changes so i cant really say what works for me just yet.

TypeDre · 10-08-2016, 05:25 PM

Where can I get a new ambient temp sensor? 8 manage to break mine during my FMIC install.

Snypa · 10-08-2016, 05:39 PM

Quote:

Originally Posted by TypeDre

Where can I get a new ambient temp sensor? 8 manage to break mine during my FMIC install.

Realoem.com. To locate the part number you need.

06-03-2016, 12:09 PM	#23
FCobra94 Guest 0 Rep n/a Posts Drives:	lol no The answer: you dun goofed.
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06-09-2016, 09:22 PM	#27
JF335is Enlisted Member 0 Rep 49 Posts Drives: 335is Join Date: Oct 2014 Location: Tampa iTrader: (0)	I'm running a 9" cx racing intercooler and have the same exact problem. I definitely think the intercooler being much bigger than stock is cutting air flow and reading much higher than normal. I will be relocating the sensor tomorrow and hopefully will fix the obnoxious fan from running like a jet engine in this terrible FL weather
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07-03-2016, 11:23 AM	#29
lightning First Lieutenant 70 Rep 359 Posts Drives: 1M Pure S2 Join Date: Sep 2009 Location: Singapore iTrader: (0)	Hmm.. Any updates on this?
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07-11-2016, 11:36 PM	#37
JF335is Enlisted Member 0 Rep 49 Posts Drives: 335is Join Date: Oct 2014 Location: Tampa iTrader: (0)	I relocated the sensor right behind the kidney grills to get actual air flow. I now get proper readings for ambient temp as before the intercooler was definitely spiking the temperature. Solved the constant jet engine sounds due to the extreme heat lately in FL and the fmic. I'll post some pictures tomorrow
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07-23-2016, 12:11 PM	#39
JF335is Enlisted Member 0 Rep 49 Posts Drives: 335is Join Date: Oct 2014 Location: Tampa iTrader: (0)	Here's a couple of pictures of where I moved the sensor. Hope it helps Attached Images
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08-10-2016, 09:55 PM	#40
Snypa Captain 38 Rep 656 Posts Drives: Like a mahdman ! Join Date: May 2013 Location: I-75 iTrader: (3)	Great idea....once i get to doing this. Thanks JF335is __________________ SUPER SLOW E90
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08-10-2016, 11:30 PM	#41
335is-dct Second Lieutenant 188 Rep 232 Posts Drives: 335is Join Date: Dec 2015 Location: south florida iTrader: (0)	Ambient air temps won't affect when your radiator fan kicks on... That is determined by the coolant thermostat.
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10-08-2016, 05:25 PM	#43
TypeDre Private First Class 118 Rep 196 Posts Drives: F82 MW 6MT Join Date: Mar 2014 Location: 206 iTrader: (0)	Where can I get a new ambient temp sensor? 8 manage to break mine during my FMIC install.
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