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renaudsk renaudsk is offline
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Car: M135i LCI xDrive Full
Default IAT to high after Intercooler upgraded - 07-23-2020, 11:58 AM

Hello,
Since I put the Phoenix Intercooler and BMS charges ***** (and also a BMS catch can oil), my IAT is going UP degrees by degrees ...
When it's over 70 (CELSIUS!!!) the engine starts to be in "downgrade" mode with some error codes "air temperature to high".
When I restart, the IAT are down to 30/35C, and restarts to going UP degrees by degrees...
When I check with my hands, charges ***** (left) are hot, the Phoenix is "cold", so the system apparently works.

I checked my intercooler cooling tank : OK
I'll drain my both coolants systems tomorrow to be sure fluids are OK.
May be the IAT sensor is ?
May be the little hose bellow the intercooler could be twisted ?

thank's for your help
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renaudsk renaudsk is offline
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Car: M135i LCI xDrive Full
Default 07-24-2020, 02:44 PM

Update.

The issue is from JB4 reading...
The sensor works,
the cooling system too : I can put my finger in the air cooler tank after a run, till cold ^^
Fluids are new.
Today the temperature has started to.... drop degrees by degrees until 2C .....
After an engine restart, it's UP to 35C and starts to going up slowly.
Sometimes it's drop/jump to 30C-->50/60C to come back to 30C ...

If some one can helps me
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 07-24-2020, 07:12 PM

JB4 log from the car?


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

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renaudsk renaudsk is offline
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Default 07-25-2020, 01:54 AM

Here

P4_M2_R2_200725_1045.csv


M3 S55 2014
JB4 Map 2(log)
BEF E85 IGN (100% E85)
DP's, CP's, BMS AirC, K&N Filter, NGK IR Spark Plug, BMS oil catch can
lasts firmwares JB4 and BEF

Last edited by renaudsk; 07-25-2020 at 02:11 AM..
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renaudsk renaudsk is offline
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Default 07-25-2020, 08:41 AM

@terry what do you think of my logs ?

Today I bought MHD Monitor Licence to check with MHD Wifi adapter if the temperature is high without JB4 pluged.
And yes it is ...
So I don't know what to do ?
I cleaned the IAT sensor also and re-check everything (air cooler, charges *****, filter, oil catch can ...)

help
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renaudsk renaudsk is offline
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Default 07-25-2020, 10:12 AM

Fixed !
I changed the BEF JB4_S55_V2_E85_IGN_13_T3 for the JB4_S55_E85_IGN_14_T2 and I cleaned the IAT sensor.

Everything good now. Around 75/95F
Thank you
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