FIC Installation Notes: Toyota / Scion

[Jonny Steele]

2005-2006 Scion tC:

FIC Part number:   30-1910
FIC Slave Firmware: z104.hex
Cam Sensor: Magnetic (2-wire)
Crank Sensor: Magnetic (2-wire)
Engine Load: MAF Sensor
ECU Location: Cabin, passenger side behind glovebox


FIC O2 Table notes:
Boosted Scion tC owners who want to enrichen the fueling at partial throttle settings when the factory ECU is in feedback mode can do so with the F/IC. The Factory ECU tries to run the engine at stoich (~14.7:1 Air/Fuel) when it is not at full throttle. However, forced induction tC's can make boost while still at partial throttle and the ECU is still in feedback mode. 14.7 is TOO LEAN to be running when under any appreciable boost and can cause stumbles.

The Scion tC has a uncommon O2 sensor style but the F/IC can still modify your target AFR's. It is assumed that you have the F/IC hooked up per the recommended connection diagram from AEM. It is also assumed that you have an independent AFR device to confirm the proper operation. It doesnt have to stay on the car but it is valuable during setup to confirm proper operation.

Step 1:
Open the Setup dialog box
In the O2 sensor section (top right)
Load Input = MAP (Sets the Y axis of the O2 map to the internal MAP sensor)
Mode = Voltage (says the table will contain raw voltages)
Period = Not applicable for Voltage mode
Bank1 Hi voltage = 4.95
Bank1 Lo voltage = 0.0

Now open the O2 Map by either clicking on the icon with the big "O" in it or select "O2 Map" under the maps menu.

The O2 Map is a 21 RPM (X Axis) by 17 Boost (Y Axis) table. In each cell is the voltage you want for each operating point (The F/IC interpolates between the 4 nearest breakpoints for smooth transitions).

Set up the load axis by clicking on each breakpoint and setting it to whatever you want. You can also drag a bunch of them and it will interpolate between the end points. Do the same with the RPM. These two sets of breakpoints are unique to this table so changing them wont change them in other tables.

Enter the desired closed loop AFR target into the cells of the table using the following values.

AFR   Value
17.4    4.0
17.0    3.9
16.6    3.8
16.2    3.7
15.8    3.6
15.5    3.5
15.2    3.4
14.9    3.3
14.7    3.2
14.4    3.1
14.2    3.0
14.0    2.9
13.8    2.8
13.6    2.7
13.5    2.6
13.3    2.5
13.2    2.4
13.1    2.3
13.0    2.2
12.9    2.1
12.8    2.0
12.7    1.9
12.6    1.8
12.5    1.7
12.4    1.5
12.3    1.4
12.2    1.3
12.1    1.2
12.0    1.1
11.9    1.0

So if you want 13:1 AFR in a particular point, put 2.2 in that point in the table. Some minor tweaking may be required but these values will get you VERY close. As long as the factory ECU is in feedback then these values will be used.

So would this table work for a 2007 corolla 1zz?  The info you have listed for the 03-05 corollas uses a narrow band 0-1v, the 05+ corollas use a wideband 0-5v sensor.  So would this table work for mine then? 

I keep having aem techs tell me i need to use offset mode, but i think that works best with the narrow band, should i be using voltage?

[Jonny Steele]

Ok, so this is what i got from toyota, the afr is designed where stoich, there is no current flow and the voltage output is 3.3v. A rich mix, means a voltage is below 3.3v with a negitive current flow, lean is above 3.3v with a positive current flow.

[NS]

Ok, so this is what i got from toyota, the afr is designed where stoich, there is no current flow and the voltage output is 3.3v. A rich mix, means a voltage is below 3.3v with a negitive current flow, lean is above 3.3v with a positive current flow.

What you've described is the basic operation of a standard "wideband" or current sensing type of O2 sensor.  You can try using the info that JR posted but that's what work on that car in that instance.  Check out the wideband tuning video here for more info:

http://aempower.com/ViewCategory.aspx?CategoryID=327

[Jonny Steele]

Ok, so this is what i got from toyota, the afr is designed where stoich, there is no current flow and the voltage output is 3.3v. A rich mix, means a voltage is below 3.3v with a negitive current flow, lean is above 3.3v with a positive current flow.

What you've described is the basic operation of a standard "wideband" or current sensing type of O2 sensor.  You can try using the info that JR posted but that's what work on that car in that instance.  Check out the wideband tuning video here for more info:

http://aempower.com/ViewCategory.aspx?CategoryID=327

I just stated that ive watched both of those vids, and nothing comes from them.  No matter what i input in the map, the afr doesnt change.  Before i get (check your install) i have, im using a PnP harness from Boomslang.

Im going to make a vid of what im doing so that yall can see.

[cdydjded]

Installed FIC in Yaris getting the following codes:

P0101 MAF or VAF A Circuit Low Input

P2239 O2 Bank 1 Sensor 1 Positive Currenet Circuit High

P2252 O2 Bank 1 Sensor 1 Negative Current Circuit High

P0172 System To Rich Bank 1

The FIC is seeing all signal inputs, what could it be?

[ESP Dyno]

Just some good info that might help some other people out (and save hours of tuning frustrations)...We just wrapped up a tune on a turbo 09 Scion TC.  The car would hesitate hard, mostly at full throttle, though the AFRs and timing looked great.  After hours of messing with the tune, I talked to Henry at AEM.  I told him we were running the Z110 hex and he recommended flashing in an older version.  We flashed in the Z107 file and like magic, the car ran beautiful.  So for those wondering if it will work on the 09, yes it does but make sure you are running the Z107 hex.

Hope it helps.  I couldn't find much info on the 09 when I searched.

[Jonny Steele]

Just some good info that might help some other people out (and save hours of tuning frustrations)...We just wrapped up a tune on a turbo 09 Scion TC.  The car would hesitate hard, mostly at full throttle, though the AFRs and timing looked great.  After hours of messing with the tune, I talked to Henry at AEM.  I told him we were running the Z110 hex and he recommended flashing in an older version.  We flashed in the Z107 file and like magic, the car ran beautiful.  So for those wondering if it will work on the 09, yes it does but make sure you are running the Z107 hex.

Hope it helps.  I couldn't find much info on the 09 when I searched.

I really wish we knew for sure what files we are supposed to use, its so difficult when i can in for support and they want me to try this hex, then this hex....blah!!

Im still having trouble with my 07 corolla 1zz, cant override the fuel trims during closed loop, no matter what i do to the o2 map.

I was told to use offset mode from aem, but then in the vids yall just posted, its saying i have a wideband so use voltage mode....ERRRRR.

[tcchris38]

Ok I have a AEM Fic in my turbo'd o6 auto tc. I have had to issues with it. When the key is off the thottle body sensor stays powed up. I ended up fixing that by putting a in line switch from the power wire to a switch in the car. As soon as I turn the switch off and right back on it stays off. So as soon as I break the power for a second it stops. But I through a CEL because of that. Also with the key off there is something powered up on the valve body I can hear it humming throught the transmission pan. Once the car is off I cycle the key on and off about 2 times and it shuts off for good.
I thought everyone had the problem but I talked to a kid with the same setup as me and he dosent have this problem why is this??
Is there something inside my Fic box that is messed up??
I have a pnp harness so I didnt wire anything up wrong so I am stumped!!
Please help me!
Any help would be great!
Thanks
Chris

[builtturboTC]

hey this post has helped me out alot and i have about 6 different maps from a buddy i meet on a different forum and about 1 out of the 6 did NOT work but i like the copy/past option i got to kinda mix match and tweak a few together i have not dyno tuned mine yet just some high way pulls.... i have a few questions tho i have a ported and polished head and bigger valves so there anything i need to be careful with or make different adjustments?!?!  also i pulled the plugs looked at them they looked lean but they wernt they had almost like a chemical burning/build up look on them and i know that i am not burning chemicals lol its from the ignition timing/retarding what is a good rule of thumb to go off of when adjusting the ignition???

also i can rip it and im hitting about 18psi boost right now with all forged internals and 9:0:1 compression and when i get on it and get off of it for like 10seconds or so and just give it gas to maintain my speed it pops/backfires...any ideas?!?! if anyone can help that would be sweet!!!! i can send pictures of my ignition map and fuel map and o2 map if they dont mind taking a quick little peak and say what i need to tweak........thanks again!!

[akash152]

Hi i am planning to turbocharge my toyota mr2 that has been swapped to a camry v6 engine. I was wondering if the FIC will work with my ecu specifically would it be able to clamp my MAF. The MAF sends an inverted signal, 0 volts is wot and 5 volts is idle. Can the FIC work with such a MAF? Thanks for any help.

[SV]

Hi i am planning to turbocharge my toyota mr2 that has been swapped to a camry v6 engine. I was wondering if the FIC will work with my ecu specifically would it be able to clamp my MAF. The MAF sends an inverted signal, 0 volts is wot and 5 volts is idle. Can the FIC work with such a MAF? Thanks for any help.

Yes it will work since you are telling the F/IC box what the voltage calibration of the sensor is, it would just be the opposite of a normal sensor.

[akash152]

thanks very much

[fullfxtc]

does anyone have a link or know where i can get a wiring diagram for a 05 scion tc? im trying to hard wire the aem into it and i need the correct wiring diagram?? any hekp would be great!!! im trying to wire it up today and head to the track tonite!!!!

[SV]

does anyone have a link or know where i can get a wiring diagram for a 05 scion tc? im trying to hard wire the aem into it and i need the correct wiring diagram?? any hekp would be great!!! im trying to wire it up today and head to the track tonite!!!!

It can be downloaded from page 1 in this thread

[specialed]

Ok I have a AEM Fic in my turbo'd o6 auto tc. I have had to issues with it. When the key is off the thottle body sensor stays powed up. I ended up fixing that by putting a in line switch from the power wire to a switch in the car. As soon as I turn the switch off and right back on it stays off. So as soon as I break the power for a second it stops. But I through a CEL because of that. Also with the key off there is something powered up on the valve body I can hear it humming throught the transmission pan. Once the car is off I cycle the key on and off about 2 times and it shuts off for good.
I thought everyone had the problem but I talked to a kid with the same setup as me and he dosent have this problem why is this??
Is there something inside my Fic box that is messed up??
I have a pnp harness so I didnt wire anything up wrong so I am stumped!!
Please help me!
Any help would be great!
Thanks
Chris

Chris,

To address this problem, you will want to move pin 16 on your 22pin FIC connector over to A-1 on your engine harness.

Thanks.