I NEED Boost... Opinions puh-lease

[Focus_Sh1ft]

Planning to install it tomorrow actually. I'm going to hook up injector ins/outs as well as power and ground of course.

[cdydjded]

Originally Posted by Focus_Sh1ft

Planning to install it tomorrow actually. I'm going to hook up injector ins/outs as well as power and ground of course.

Good deal. Just to let you know, mount the AEM FIC in the car not in the engine bay. Since it has a built in map sensor that works off of absolute pressure the temp in the engine bay will affect it drastically....

[Focus_Sh1ft]

Today I went to go wire the FIC up, but got kinda confused... This ECM pinout I'm using has got me all sort of confuzzled. Check it out here:
http://www.powerenterpriseusa.net/pr...risControl.pdf

Firstly, everything has two different wires listed and I have no idea what the acronyms stand for. So basically, I have no clue which wires I should be using to tap/intercept. It looks like some things are listed as + and -, while others aren't. Here's what I think needs to be done...

FIC Power - A21-1 or A21-2
FIC Gnd - C20-104
Injector 1 - C20-108
Injector 2 - C20-107
Injector 3 - C20-106
Injector 4 - C20-105
MAF+ - C20-118
MAF- - C20-116

The thing is, even for the injectors, C20-45 is listed next to all of them and I don't understand why? Enlighten me pleeeease. In the mean time, I need a beer.

... and aloe.

[Parmas]

Originally Posted by Focus_Sh1ft

Today I went to go wire the FIC up, but got kinda confused... This ECM pinout I'm using has got me all sort of confuzzled. Check it out here:
http://www.powerenterpriseusa.net/pr...risControl.pdf

Firstly, everything has two different wires listed and I have no idea what the acronyms stand for. So basically, I have no clue which wires I should be using to tap/intercept. It looks like some things are listed as + and -, while others aren't. Here's what I think needs to be done...

FIC Power - A21-1 or A21-2
FIC Gnd - C20-104
Injector 1 - C20-108
Injector 2 - C20-107
Injector 3 - C20-106
Injector 4 - C20-105
MAF+ - C20-118
MAF- - C20-116

The thing is, even for the injectors, C20-45 is listed next to all of them and I don't understand why? Enlighten me pleeeease. In the mean time, I need a beer.

... and aloe.

Each injector has a common wire which is the POWER wire that goes directly to IGNITION +12V or else to the ecu 12V power (same condition). This is probably the C20-45. If you have a multimeter, do a continuity check from the injector common wire (this should have the same color on all injectors) to the positive terminal of the battery while ignition is on to confirm this.

The other injector wire is ground connected to individual ecu output ( in your case C20-105 to C20-108. The ecu activates the specific injector at a point in time by grounding these wires to make a complete circuit.

Regarding the MAF I cannot help you since I always work with MAP sensors which work with vacuum.

Fortunately for you I am almost doing a fresh engine management install so I am pretty sure I know this is the right route. So ask and I try to help you as much as I can.


IF you have an echo or yaris 2001 - 2005 the connectors on that manual do not match since I tried it myself. I didn't found a manual for mine so I had to cut all sensor wiring and connected them directly to the new ecu myself.

[Focus_Sh1ft]

Thanks for the input guys. I definitely would like to hear from cdydjded on this.

Originally Posted by Parmas

Each injector has a common wire which is the POWER wire that goes directly to IGNITION +12V or else to the ecu 12V power (same condition). This is probably the C20-45. If you have a multimeter, do a continuity check from the injector common wire (this should have the same color on all injectors) to the positive terminal of the battery while ignition is on to confirm this.

The other injector wire is ground connected to individual ecu output ( in your case C20-105 to C20-108. The ecu activates the specific injector at a point in time by grounding these wires to make a complete circuit.

Regarding the MAF I cannot help you since I always work with MAP sensors which work with vacuum.

Fortunately for you I am almost doing a fresh engine management install so I am pretty sure I know this is the right route. So ask and I try to help you as much as I can.


IF you have an echo or yaris 2001 - 2005 the connectors on that manual do not match since I tried it myself. I didn't found a manual for mine so I had to cut all sensor wiring and connected them directly to the new ecu myself.

I'll be doing a continuity check to confirm C20-45's function. However, it's clear that C20-105 to C20-108 are the wires that need to be intercepted for the injectors. At this point, I feel pretty confident I had the right wires so I think I'm gonna give it another shot. The only part that is unclear is which power source wire needs to be tapped. I doubt it matters though because both the conditions and specified conditions are the exact same.