sensors offset in AIM - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

puma · 05-20-2015, 01:15 PM

I don't know if anyone ever noticed but when i start the car and it is cold, my aat, iat, ect and oil temp should pretty much read all the same thing but it seems like they are like 10 degC + of difference.

I talked about it to the guys at AIM and they suggested to give them solid data so they could change their codes in the software to get more accurate readings.

Anyone has an other device along with their AIM to compare the 2 values, both when cold and when at operating temp?

car is in repair as we speak so i can't take any readings but i'll try to compare with my ecutek, if anyone has other devices, the more data we have the better we can have them correct the ecu reading for our cars.

thanks

JDKane527 · 05-20-2015, 02:23 PM

For the oil temp, what are you comparing the AIM readings to? Is the AIM sensing from the ECU or a standalone sensor?

mav1178 · 05-20-2015, 02:59 PM

Quote:

Originally Posted by puma

I don't know if anyone ever noticed but when i start the car and it is cold, my aat, iat, ect and oil temp should pretty much read all the same thing but it seems like they are like 10 degC + of difference.

Unless you've parked it in a temperature-controlled room for enough time for the core of the engine block to be the same temp as the ambient temperature, they will all be different.

-alex

puma · 05-20-2015, 05:31 PM

all the sensors i am talking about are OEM sensors.

yeah car is a race car so it has been sitting in a garage for all winter when i installed the MXL an it always is in garage.

AZP Installs · 05-21-2015, 08:36 AM

Quote:

Originally Posted by puma

all the sensors i am talking about are OEM sensors.

yeah car is a race car so it has been sitting in a garage for all winter when i installed the MXL an it always is in garage.

By OEM I'm assuming you are pulling the data off the CAN or OBDII Bus?

-mike

puma · 05-21-2015, 01:10 PM

yes sensors pulled from the CAN, like a regular AIM installation, either with soloDL through obd2 or MXL by hardwiring into a CAN wire.

sw20kosh · 05-21-2015, 05:14 PM

Yes coolant and IAT are reading 10 deg lower than they should. There is a software patch for this.

@mkivsoopra

mkivsoopra · 05-21-2015, 05:19 PM

Quote:

Originally Posted by sw20kosh

Yes coolant and IAT are reading 10 deg lower than they should. There is a software patch for this.

@mkivsoopra

here! http://www.ft86club.com/forums/showt...t=70030&page=4

05-20-2015, 01:15 PM	#1
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	sensors offset in AIM I don't know if anyone ever noticed but when i start the car and it is cold, my aat, iat, ect and oil temp should pretty much read all the same thing but it seems like they are like 10 degC + of difference. I talked about it to the guys at AIM and they suggested to give them solid data so they could change their codes in the software to get more accurate readings. Anyone has an other device along with their AIM to compare the 2 values, both when cold and when at operating temp? car is in repair as we speak so i can't take any readings but i'll try to compare with my ecutek, if anyone has other devices, the more data we have the better we can have them correct the ecu reading for our cars. thanks

05-20-2015, 02:23 PM	#2
JDKane527 Senior Member Join Date: Jan 2013 Drives: Asphalt Scion FR-S Location: Los Angeles, CA Posts: 499 Thanks: 274 Thanked 215 Times in 136 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	For the oil temp, what are you comparing the AIM readings to? Is the AIM sensing from the ECU or a standalone sensor? __________________ Asphalt Build

05-21-2015, 05:14 PM	#7
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Yes coolant and IAT are reading 10 deg lower than they should. There is a software patch for this. @mkivsoopra __________________ 86DRIVE Challenge

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
O2 sensors	FirestormFRS	Engine, Exhaust, Transmission	1	12-29-2014 08:38 PM
WTB - TPMS sensors	drftxx	Wheels and Tires	1	02-25-2014 09:36 PM
TPS Sensors	Brahsbrah	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	4	11-18-2013 11:03 PM
Parking Sensors?	Skippman	Electronics \| Audio \| NAV \| Infotainment	4	07-12-2013 02:05 PM
What offset is legal? What offset provides most benefit?	bdohazelnuts	Tracking / Autocross / HPDE / Drifting	2	02-08-2013 01:32 PM

05-20-2015, 05:31 PM	#4
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	all the sensors i am talking about are OEM sensors. yeah car is a race car so it has been sitting in a garage for all winter when i installed the MXL an it always is in garage.

05-21-2015, 01:10 PM	#6
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	yes sensors pulled from the CAN, like a regular AIM installation, either with soloDL through obd2 or MXL by hardwiring into a CAN wire.

User Name		Remember Me?
Password