2005-2006 Nissan 350Z
2005-2006 Infiniti G35
FIC Part number: 30-1910
FIC Slave Firmware: z107.hex
Cam Sensor: Hall Effect (3-wire)
Crank Sensor: Hall Effect (3-wire)
Engine Load: MAF Sensor
ECU Location: Cabin
The 05-06 350Z/G35 requires different code for the F/IC. The code is z107 and can be downloaded from this post, along with the wiring diagram and instructions on flashing the F/IC.
FIC O2 Table notes:
For the 350Z and G35, FIC software version 2.01 or newer must be used.
Boosted 350Z/G35 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 350Z/G35'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 05-06 350Z/G35 has UEGO style O2 sensors, 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
Hi Level Drive = Checked
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
15 3
14.5 2.5
13.9 2
13.1 1.5
12.3 1
11.7 0.5
11.4 0.25
11.2 0.1
So if you want 13:1 AFR in a particular point, put 1.5 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.
IMPORTANT:
If you just change the target AFR, the factory ECU will adjust the trims to achieve the desired AFR. BUT, if you make huge changes then you will get huge trim corrections and the chance of a check engine code for excessive trims. Dont forget to adjust the fuel maps to add the approximate amount you are requesting here. That way the trims will stay near zero!
Wiring diagram and firmware flashing instructions are attached.
Does this fit to FX35?
THANKS
