F/IC Installation Notes: Honda Civic 06-07

[z0n3]

This was a boosted Civic, the test was performed at idle. The "trims" were displayed on an OBD scanner, there were no adjustments made to the FIC's fuel table.

hi, if this was performed at idle, how did they manage to change the AFR in the table?

[SB]

Here's what was done:

The FIC was installed, using a harness from Boomslang.
During the entire test, there were no changes made to the FIC's fuel map, it was all set to zero. The object of the test is to find how to trick the stock ECU into making the car run rich.
Using the O2 table in Volts mode, the entire table was set to 2.5V.
Looking at the wideband that was installed in the exhaust (before the cat converter), the gauge reading was 15.0 AFR. This means that if you use 2.5V in the O2 table, the stock ECU will be happy at 15 AFR.

When the entire O2 table was set to 2.0V, the wideband reading was 14.0 AFR. This means that if you use 2.0V in the O2 table, the stock ECU will  add or subtract fuel in closed loop mode until the AFR is 14.0

This process was repeated a few times. The "fuel trim" value was the number shown in the OBD scanner, for instance when you use 1.0V in the O2 table, the stock ECU will be happy at 12.1 AFR. In other words, we tricked the stock ECU into adding about 22% fuel in closed-loop mode.

If you haven't read this thread already, it might help explain how the FIC can be used to trick the stock ECU into adding more fuel in closed loop mode: http://forum.aempower.com/forum/index.php/topic,20611.0.html

[z0n3]

Here's what was done:

The FIC was installed, using a harness from Boomslang.
During the entire test, there were no changes made to the FIC's fuel map, it was all set to zero. The object of the test is to find how to trick the stock ECU into making the car run rich.
Using the O2 table in Volts mode, the entire table was set to 2.5V.
Looking at the wideband that was installed in the exhaust (before the cat converter), the gauge reading was 15.0 AFR. This means that if you use 2.5V in the O2 table, the stock ECU will be happy at 15 AFR.

When the entire O2 table was set to 2.0V, the wideband reading was 14.0 AFR. This means that if you use 2.0V in the O2 table, the stock ECU will  add or subtract fuel in closed loop mode until the AFR is 14.0

This process was repeated a few times. The "fuel trim" value was the number shown in the OBD scanner, for instance when you use 1.0V in the O2 table, the stock ECU will be happy at 12.1 AFR. In other words, we tricked the stock ECU into adding about 22% fuel in closed-loop mode.

If you haven't read this thread already, it might help explain how the FIC can be used to trick the stock ECU into adding more fuel in closed loop mode: http://forum.aempower.com/forum/index.php/topic,20611.0.html

excellent!!! I understand completely (well, almost) now

Cheers!!

[tomasro]

The F/IC has been succesfully installed on the 2006-2007 Honda Civic. We have tested with the 2.0L Civic Si and the 1.8L Civic.


Please note that the Civic is equipped with both a MAF and MAP sensor, so you will need the new Version 2.01 FIC software. The old software will not allow you to clamp both the MAF and the MAP signals. The new software can be downloaded here: http://forum.aempower.com/forum/index.php/topic,20726.0.html


Also note that the OEM ECU is installed in the engine bay. The FIC is not sealed from moisture, so it must not be installed in the engine bay.


Here is the wiring diagram:

At the risk of being a total noob, the wiring diagram shows that it is for an Si (K20 engine).  Is the wiring the same for the non-Si models (the R18 engine).  Thank you!

[SB]

Yes, we tested on both the K20 and R18 models. The same boomslang harness will work with both cars.

[tomasro]

Couple more questions here:

1) Where do you install the bosch sensor of the UEGO AFR controller so that it doesn't throw a CEL or totally muck up the AFR? 

2) Or does the sensor even need to be installed to work with the FIC and datalog its output?  Any wiring changes to the boomslang for this?

...EDIT:  Nevermind, I just played around with the FIC, and since it clamps the O2 sensor when the O2 map is modified, you can run the car without a wideband O2 sensor, so the UEGO can replace the stock wideband.  And the UEGO can be data logged with the FIC PC Logger, but  some wiring to the boomslang harness needs to occur to make this happen.  Yay for real world learning!

[titawgo]

Can FIC control vtec point of Civic SI?

[turillo]

This is a great thread.

Question:  Will the F/IC and Boomslang plug and play harness work with the 2008 Civic Si?  Wire diagram?

Thank you in advance.

[BlackSS/SC]

Can the f/ic clamp both the maf and map at the same time with the newest version?  It's pretty much needed.

[SB]

BlackSS/SC,

Yes, the FIC can clamp the factory MAF signal and MAP signal, but you need to have Version 2.01 or newer software installed.

The MAF sensor is wired into the FIC's MAF channel with the Boomslang PnP harness.
The MAP sensor is wired into the FIC's Analog A channel with the Boomslang PnP harness. The Analog A table acts exactly like another MAF table.

You can use the Setup window to adjust the Load (y-) axis of either table. Each table can have a different set of breakpoints, by the way; adjusting the breakpoints in the Analog A table won't change the breakpoints in the MAF table.

[z0n3]

can anyone confirm if MAP or MAF controls fueling on this R18 engine?

or is it both MAF for idling and low loads.. MAP for mid and high load?

or is it MAP for fueling *period*?

Thanks!!

[BlackSS/SC]

I'd also like to know if the map or maf controls primary fueling and under what conditions.

[rustickicks]

Hi,  I have a shop currently installing a turbo into my 08 civic si with the aem f/ic. They have been having trouble getting it to run correctly. I am not sure exactly what they have tried, but I do know that they can get the car to run correctly up to 5000rpms but then it starts to lean out. I know they have updated software and used several basemaps which did not work. Right now they are waiting for a black box to cover the map sensor I believe. Is there anything that they may be missing or that may be causing this?

[z0n3]

Hi,  I have a shop currently installing a turbo into my 08 civic si with the aem f/ic. They have been having trouble getting it to run correctly. I am not sure exactly what they have tried, but I do know that they can get the car to run correctly up to 5000rpms but then it starts to lean out. I know they have updated software and used several basemaps which did not work. Right now they are waiting for a black box to cover the map sensor I believe. Is there anything that they may be missing or that may be causing this?

Hi,

Do this.

When NOT running under boost, are they successful at:

1. changing the AFR while running under load at 5,000 rpm and below?
2. changing the AFR while running under load above 5,000 rpm?

Cheers.

[rustickicks]

If you mean not under boost as in when the car was stock; they did not use the fic before the turbo was put on. I know that they have been able to make the afr a good ratio under 5000rpms but not over 5000rpms. I am not sure if this is when the turbo really starts to kick in or what. I will ask them come monday about that.