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

[MTD]

awesome thread!

For the 99-00 v6 auto (federal model) (one cat and narrowband).

Is it same as the 98 model - type c?

I am confused buy your question I guess. Are you talking about the wiring harness about the O2 type?

99' is still narrow band if it is federal. 00' is wideband if it isn't a manual.

 

[JayRolla]

Nope, just as the URD it is a MAP based tuning piggyback so it won't inhibit the ECU's ability to function at all. It won't adapt to a climb in elevation, but the stock ECU doesn't either in some respects. Basically all the FIC does is scale the fuel by a certain % and as the stock ECU corrects itself at elevation the scaling stays the same, but it would be scaling an already scaled number.

I could be wrong, but that is how my roommate explained it to me and he had heard it from his IC engines professor. Sorry for the game of telephone, I will check tonight to make sure that, that is correct, but it seems right.

Your pretty much right. Issue happens when fuel trim maxes out and ecu cant adjust anymore, which can happen since maf is tricking ecu. I have tuned in elevation and it can be a battle. But never such an issue that its going to hurt the motor. You always tune safe on street car so even in worst case situation you dont run lean or have too much timing.

THIS WEBSITE EXPLAINS PIGGY BACK ISSUES PRETTY WELL

Fried Rice BANZAI: Tuning: Piggy Back Tuning Issues, MAF vs. Fuel Map

Everything he says is true, I have experienced all the issues he talks about tuning piggy backs. But the bang for the buck is usually well worth it. Also the ease of stock fuel maps is always good for beginners for tuning. Always go piggyback if your new to the tuning game.

 

[MTD]

Your pretty much right. Issue happens when fuel trim maxes out and ecu cant adjust anymore, which can happen since maf is tricking ecu. I have tuned in elevation and it can be a battle. But never such an issue that its going to hurt the motor. You always tune safe on street car so even in worst case situation you dont run lean or have too much timing.

THIS WEBSITE EXPLAINS PIGGY BACK ISSUES PRETTY WELL

Fried Rice BANZAI: Tuning: Piggy Back Tuning Issues, MAF vs. Fuel Map

Everything he says is true, I have experienced all the issues he talks about tuning piggy backs. But the bang for the buck is usually well worth it. Also the ease of stock fuel maps is always good for beginners for tuning. Always go piggyback if your new to the tuning game.

I have read pretty much all of his articles, and they are very well written and worth the read. I will have to include the links to his articles in the reference section. I will have to read this one, I have seen the fuel trims hit their max while tuning and I could see that being a problem for sure. The only Issue I could see would be dropping in elevation after tuning at elevation though. As you dropped down in elevation you would get increasingly leaner.

One thing you could do is have a street tune and then have a 'safe' tune and run the F/IC's tune switching function, I may still set mine up that way.

 

[s20004runner]

I am confused buy your question I guess. Are you talking about the wiring harness about the O2 type?

99' is still narrow band if it is federal. 00' is wideband if it isn't a manual.

Yep I was asking about the wiring harness. For 00, I think you are right.

I know my 99 v6 auto (non cali, one cat, O2 upstream and 02 downstream) is narrowband, so it must be type c wiring harness?

 

[MTD]

Yep I was asking about the wiring harness. For 00, I think you are right.

I know my 99 v6 auto (non cali, one cat, O2 upstream and 02 downstream) is narrowband, so it must be type c wiring harness?

Type D, take a look at the diagram again. If you are still unsure you can look behind the glovebox.

Type C- 4 plugs
Type D- 5 plugs (may not all be populated)

 

[steezemcqueen]

Watching this. The Split Second unit i'm running works but definitely has its limitations. I think upgrading that would be the next step for me.

 

[JayRolla]

Watching this. The Split Second unit i'm running works but definitely has its limitations. I think upgrading that would be the next step for me.

Along with e85, more fuel and boost!!!

 

[MTD]

Did a bit more today, may revise how I am handling the steps with snippets straight from the install manual. That way there is no confusing on what types of sensors to wire and how.

 

[maverickhawk]

This is Fun!

 

[0xfded]

Subbed. If / when I start ratcheting up the boost on mine, this is the route I'm interested in going. Thanks for doing this!

 

[MTD]

Well I have to talk about where to put the resistors yet, but after that the advanced users should have enough info to complete an instal. I will start to work on the in depth Tut for beginners this weekend.

 

[MTD]

Well you have everything you need for instal now. ray: hopefully it is satisfactory! if not :smashputer:

 

[MTD]

Should have some time over lunch to pull the current tune off the F/IC and get it posted here. I have it pretty dialed, but I realized that this tune specifically may not work for everyone since I set up the o2 skewing is setup for narrow band.... :ybrick: Anyway it should still give you an idea of where open loop hits and what you will have to do to compensate for it.

 

[JayRolla]

Should have some time over lunch to pull the current tune off the F/IC and get it posted here. I have it pretty dialed, but I realized that this tune specifically may not work for everyone since I set up the o2 skewing is setup for narrow band.... :ybrick: Anyway it should still give you an idea of where open loop hits and what you will have to do to compensate for it.

LOL, doh!!

 

[MTD]

LOL, doh!!

Yep no kidding lol. I was really hoping that I could help out the 00+ guys, but since the manuals have a narrowband sensor looks like no canned tune for them!

It's okay though once I finish the tuning guide a monkey would be able to tune this thing haha.

 

[MTD]

I'm drooling already. I know my 4Runner is a great candidate for the AEM controller, I just need some expendable income... anyone have a money tree in their backyard I can pick from?

Damn Spammer!

 

[s20004runner]

Being a total noob to tuning, watching the aem tuning 'how to' videos makes me feel like a kindergartner listening to calculus professor.

But this is fun! I love a good challenge.

thanks mtd for this great write up.

Do you know if I go get a CA emission w/ the AEM FIC installed, will the emission computer know that it's not factory?

 

[JayRolla]

Being a total noob to tuning, watching the aem tuning 'how to' videos makes me feel like a kindergartner listening to calculus professor.

But this is fun! I love a good challenge.

thanks mtd for this great write up.

Do you know if I go get a CA emission w/ the AEM FIC installed, will the emission computer know that it's not factory?

You will be fine since the computer is still factory. All controller does is fudge the signals it reads.

 

[MTD]

Being a total noob to tuning, watching the aem tuning 'how to' videos makes me feel like a kindergartner listening to calculus professor.

But this is fun! I love a good challenge.

thanks mtd for this great write up.

Do you know if I go get a CA emission w/ the AEM FIC installed, will the emission computer know that it's not factory?

Don't let them know its installed otherwise they won't be able to tell.

 

[MTD]

[MENTION=53337]SCRunner12[/MENTION] want to add this to the supercharger thread please