fueal upgrade gone wrong

[v-mac]

so today i decided to upgrade my fuel system, we put in a evo 9 fuel pump 560cc injectors and a afc that was completely cleared out....well crunk up my car and gas was coming out of my cutout on my downpipe like a mini waterfall....well not too sure what to make of that so we took the 560's out to see if that made a diff and put the stock 440's in a whala, no more fuel coming thru downpipe out cutout....literally my car was at 10 on my wideband at idle and the car was idling all kinds of rough....but after we put the stoc injectors in it went back to normal....i've been told many times that you can just hook up the 560's and run as long as u have th epump with the tuner, but hell it wouldnt even idle right....would anyone happen to know why this occured because its beyond my knowledge...seems like u have to get the ecu re scaled even tho i have never heard that spoke on any thread on here...any ideas? it was strange

 

[AWD-TSI]

They new or used? my 550 got stuck open and wold just dump fuel in like a water hose.

 

[dsmcurse]

afc is properley hooked up and working right? is it a afc 1 or a afc 2? either way you need to pick your rpm points (afc1 has 8 points of rpm correction points and afc2 has 12) id select your rpm points to be 1000, 2000, 3000, 4000 so on and so on. and just pull -25% correction all the way across the board. you didnt mention any thing about the correction but you said you have afc. is your afc at zero's? hooked up properley? give a little more info

 

[rEclipserGST]

afc is properley hooked up and working right? is it a afc 1 or a afc 2? either way you need to pick your rpm points (afc1 has 8 points of rpm correction points and afc2 has 12) id select your rpm points to be 1000, 2000, 3000, 4000 so on and so on. and just pull -25% correction all the way across the board. you didnt mention any thing about the correction but you said you have afc. is your afc at zero's? hooked up properley? give a little more info

+1 on correction values. Low rpm settings in the 1000 range would affect fuel flow at idle. More details or a video.

 

[Jeff99GS]

Fuel pressure reg could be overrun. Get an adjustable FPR.

 

[DSM_PWR]

Either ...

A) The Injectors are used and are stuck open

B) The SAFC was not programed/hooked up correctly

 

[Jeff99GS]

When you say the AFC was "cleared out" do you mean it was set to 0 all the way across for your Low throttle settings and your High throttle settings?

You have to cut back fuel using the AFC. Go to Road Race Engineering.com and look up the AFC settings for 550's on their Tech page.

I still think you could be overrunning the FPR also. As a general rule of thumb you should always upgrade the FPR when upgrading the fuel pump. Get yourself an Adjustable Fuel Pressure Regulator.

 

[ziggys95tsi]

+1 for an adjustable fuel pressure regulator

 

[v-mac]

im not sure my buddy was telling me everything was zerod off as if the settings had all been cleared out, i think it may be the afc because when we crunk up the car after installing the pump n injectors the car seemed to run fine...it really freaked me out....could someone post up a wirring diagram for an SAFC1 on a 2g ecu the ecu could have posisbly been hooke dup wrong i had three printouts but one was different from the others it just all seemed weird but the safc was reading my rpm i know for sure, but it made my cqr idle at like 1500 rpm and run 10 on my wideand at idle...

 

[v-mac]

and also when your splicing the wires together, both the pink and orange wires are for the airflow one for the afc to mas and one for mas to ecu, i could have it backwards i have them on a print out in the garage but anyhow on one of the diagrams someone had sent me it shows that both of those wires tap into the volume air flow wire, but wouldnt their be a seperate wire for each wire on the afc? we searched the horizontal set up of the ecu but could only find one airflow point on it...

 

[->PrOjEcTGS<-]

Your car got Crunked Up!!


2g AFC installation instructions:
APEXi AFC Installation on 2G

My guess is that you need to make sure the settings are correct on the AFC. Go through the setup process described on RRE's website and then take some correction out on the Lo map for the 560's. About -20%

 

[dsmcurse]

yeah, all the AFC wires basically just (tee) into the ecu wires. if there was such thing as a t-fitting buttconnector thats what you would use. i prefer to soldier. all the wires are like this with the exception of the blue wire that you dont use (pretty sure its the blue wire that isnt used, its been awhile) and the other two wires that are not just tee'd in are the orange and pink. you locate the air flow wire and snip it in half. the orange wire butt connectors in to the wire that is the wire harness side and the pink wire buttconnectors into the now short wire thats coming outa the ecu. dont forget both the brown and the black are both ground wires. they go on the same ground wire on the ecu but they need to be spaced about a inch and a half away from each other

 

[v-mac]

we couldnt figure out which grounds were the ecu grounds from the layout we had so we made our own gronds and it worked...just seemed as if the diagrams and set ups were real vague you'd think we would just have a color to color match up

 

[v-mac]

project thanks for the install directions thats exactly what we needed...on all the other diagrams it was showing pink and orange for airflow not white and yellow...

 

[->PrOjEcTGS<-]

project thanks for the install directions thats exactly what we needed...on all the other diagrams it was showing pink and orange for airflow not white and yellow...

Whooops.... I didn't fully read through it before I posted those directions. Those are for the original 5 knob AFC. Not the Super AFC-1.

 

[v-mac]

so it is the orange a pink wire huh?

 

[v-mac]

can you find me install directions for the SAFC like you had them for the previous one you posted...i liked how it showed what points you tap into that would be a big help...im trying to get it done today so if you hav time id really appreciate it

 

[->PrOjEcTGS<-]

If you have an SAFC-1 then you will have

Red: ECU's Power PIN#25
Brown: 1st Ground PIN#92 (Closer on the wire to ECU)
Black: 2nd Ground PIN#92 (Further on the wire from ECU)
Gray: Throttle Position PIN#84
Green: RPM Signal PIN#58
Orange: Airflow signal from MAF PIN#90
(Cut the wire at PIN#90 leaving enough wire to solder the pink wire on to the remaining pigtail)
Pink: Airflow signal to SAFC PIN#90
Blue: Not used on our application

Use this page to find your ECU PINs 2G Turbo ECU Pinouts

 

[v-mac]

thank you man!! you dont know how much this helps!

 

[v-mac]

and just to clear it up its the safc1 that has the fourt directional buttons and digital screen and next and previous bottom under the directinal buttons

 

[v-mac]

What should my safc settings be if I run the stock injectors?

RRE's Super AFC Setting and Adjustment Tips

 

[->PrOjEcTGS<-]

0 across the board for both Hi and Lo maps.