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^^ How To: AEM F/IC-6 Install, Tuning, and Help Thread

Discussion in '1st Gen. Tacomas (1995-2004)' started by mudthedoor, Jul 16, 2015.

  1. Sep 23, 2016 at 3:28 PM
    #41
    StAndrew

    StAndrew Wait for it...

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    Yes, bridge the two + and - wires with the resistor.
     
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  2. Sep 28, 2016 at 4:54 PM
    #42
    Clay_916

    Clay_916 Well-Known Member

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    Do you recall which wire you used for the ignition switch wire into the fic? The guide says to use the "+B" wire which I think is a 12v constant feed from the battery. There is also a "batt" wire which I think is the same thing. I currently have mine hooked to the "IGF" wire which is the same one I used for my afr and methanol gauges and worked fine but doesn't seem to want to work on the fic because the fic will only run when I have a computer hooked to it.
     
  3. Sep 28, 2016 at 6:35 PM
    #43
    TMFF

    TMFF Well-Known Member

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    Stuff and junk and things...
    I used the B+ which is the same wire my URD boxes were hooked into.

    I have read of a few people with the same problem. Make sure the wires going into your AEM harness are seated. A couple people had to just push slightly on the power wire into the aem connector.
     
  4. Oct 1, 2016 at 12:04 PM
    #44
    Clay_916

    Clay_916 Well-Known Member

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    Still struggling with this install... Did you use the CRK MAGO- and CAM MAGO- at any point? Following the instructions doesn't have you hook them into anything and according to the table on post #1 you only use CRK MAGI- and CAM MAGI- and tap both into the NE- wire from the ECU but referencing the 2.2k resistor bridge portion of the guide TC says to bridge CAM MAGO- and CAM MAGI+. Please assist @StAndrew @TMFF
     
  5. Oct 1, 2016 at 1:07 PM
    #45
    Clay_916

    Clay_916 Well-Known Member

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    Hmm, I pulled the 2.2k out and it's running better than ever. Is the only reason for that resistor to avoid throwing a code?
     
  6. Oct 1, 2016 at 2:51 PM
    #46
    StAndrew

    StAndrew Wait for it...

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    Some say the resistor works, some say it doesn't. This ECU is about as temperamental as a teen on her period.
     
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  7. Oct 2, 2016 at 7:41 AM
    #47
    TMFF

    TMFF Well-Known Member

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    I did put the resistor between the CAM MAGO - and the CAM MAGI + with no issues. You don't need it to run the AEM but it should clean up the cam signal.
     
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  8. Oct 2, 2016 at 9:46 AM
    #48
    BlackSportD

    BlackSportD Well-Known Member

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    Icon/TC Mid travel, TRD S/C, PNP Greddy EMU, 625cc injectors, 2.2 pulley, Hayden tranny cooler, AEM wideband, TRD boost gauge.
    There are two wiring configs to choose from, and I've tried both, and I've run a resistor between cam mago/magi, and then both cam and crank mago/magi, and tried various firmwares (z104, z110 etc). There hasn't been one magic 'fixs all' silver bullet, everyone's electrical noise (or variances in the FIC) is different enough to make people have to use various resistor ratings to get the desired results.

    If there was a 'one size fits all' resistor rating, it would be clean to install them inside the FIC housing on the pins that lead into the PCB, but instead one has to experiment between various ratings. Too low a resistance and the truck won't start, too high and there is enough noise to cause tuning issues.
     
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  9. Oct 2, 2016 at 10:41 AM
    #49
    Clay_916

    Clay_916 Well-Known Member

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    Do you have the CAM MAGO- hooked into anything else? Mine isn't connected to anything atm.
     
  10. Oct 2, 2016 at 12:20 PM
    #50
    TMFF

    TMFF Well-Known Member

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    It taps into the Negative for the cam circuit. For my 01 Manual trans is NE- C24 a green wire.
     
  11. Oct 2, 2016 at 1:36 PM
    #51
    Clay_916

    Clay_916 Well-Known Member

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    Then do you have the CAM MAGI- connected to anything?
     
  12. Oct 3, 2016 at 8:22 AM
    #52
    TMFF

    TMFF Well-Known Member

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    Correction the MAGI- is what taps into the negative wire for the CAM and Crank sensors. I had to go back and look at my notes.
     
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  13. Jan 2, 2017 at 12:37 PM
    #53
    BlackSportD

    BlackSportD Well-Known Member

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    Icon/TC Mid travel, TRD S/C, PNP Greddy EMU, 625cc injectors, 2.2 pulley, Hayden tranny cooler, AEM wideband, TRD boost gauge.
    This... but the rear really is a tattle tale!! It not only monitors the cats, but it is used by the OE ECU to calibrate the forward wideband o2!!! I learned this the hard way trying to use the FIC to lean out my truck in vacuum to get better MPGs and the sun of a gun was learning around it!!! That should not be possible, so googled around and Gadget replied, at certain times and loads the OE ECU will bounce the A/F around (you'll see it on your gauge) and calibrate the front wideband (and I swear with a bad tune it does it more frequently). This it not an issue when in boost, at least from what I've seen, but when I have had weird a/fs in partial throttle boost I've always been paranoid that its the rear o2 being a problem. I have a split second enricher now and it offers the ability to scew both forward Toyota wideband, and rear narrowband, so I'm employing that now, and I bet URD's kits can do the same, maybe makes it a bit more consistent. Maybe Gadget can pipe in that his units scew front and rear- this is a gap in the FIC for sure, I do not recall it's o2 mapping setup having the ability to do one channel wideband, another narrowband allowing you to do both. But then again I don't think its an issue, except maybe in very low load partial throttle boost of significant duration? Maybe quality of tune as well, has the ECU less eager to calibrate at odd times such as under load...
     
  14. Jan 3, 2017 at 10:41 AM
    #54
    vasinvictor

    vasinvictor Junkie

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    I'm glad to see this knowledge. Yes the rear o2 is used to calibrate the front wideband. I too had weird nuances until I refitted my stock rear o2 sensor. I also have a 3" high flow cat and only got a CEL once for it.
     
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  15. Oct 9, 2017 at 11:55 PM
    #55
    1HItaco

    1HItaco Well-Known Member

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    a little off topic but,

    if i was running TRD supercharger with this info would be urd 7th injector kit be a better solution for fuel upgrade VS the AEM FIC-6?

    i was leaning more toward the AEM over the URD 7th but after hearing about this inability to tune the sencond narrowband sensor after the 2nd cat i dont know if AEM is the better option.

    reading other posts leads me to believe that the URD 7th injector can provide closed loop enrichment but the lowest AFR's that it can do is 13's while in part throttle boost, but if the second narrowband sensor is not a problem for the URD it does seem to be a better option.

    what would the consensus be as far as AEM vs URD 7th injector kit?
     
  16. Oct 10, 2017 at 8:40 AM
    #56
    Clay_916

    Clay_916 Well-Known Member

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    The URD kit is fine but it is not as complete a solution as the FIC with larger primaries. I haven't read a clear description of how the 7th actually enriches CL but the fact that there is no data logging involved with determining afr values and corresponding o2 sensor voltages leads me to believe it's just throwing fuel in there willy nilly. It's not nearly as tuneable and I've read it's a real PIA to actually tune. The FIC is on-the-fly.

    If I were to SC again I would 100% chose the FIC and larger primaries. I would argue CL tune ability is more important than OL for the SC. The FIC will also open the option to run e85.

    Not sure what you mean by tuning the second narrow band but I don't think the 7th can do this either. URD sells a separate module to spoof the secondary.
     
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  17. Oct 10, 2017 at 1:37 PM
    #57
    Phessor

    Phessor Well-Known Member

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    How hard is it for someone like me, with no experience at all, to install and tune the FIC?
     
  18. Oct 10, 2017 at 1:41 PM
    #58
    vasinvictor

    vasinvictor Junkie

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    I won't say super easy. There is a plug and play wiring harness available that will make the wiring mindless. The tuning takes a little learning curve. It's as easy as tuning an aftermarket ECU gets though. One of the reasons I chose this unit is because it's been around a while and there are hundred of pages on the internet on how to tune it. It's well worth the effort.
     
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  19. Oct 10, 2017 at 1:44 PM
    #59
    vasinvictor

    vasinvictor Junkie

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    Side note- Sure do wish I had the option to increase timing with the F/IC. I'd be running e85, if so. Even now with meth injection I'd like to add a couple degrees of timing.
     
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  20. Oct 10, 2017 at 5:08 PM
    #60
    boostedka

    boostedka Well-Known Member

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    From what I've read, the tricky part is some have needed to wire in a resistor inline with the crank signal wires to get a clean signal. Other than that, it's just matching up wires using an ECU pin out. I have no actual experience with these, though, just what I've read.
     
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