need safc help

[packinkimber45]

hey guys, I was going thru all the wiring for the safc on my 90 tsi awd that I bought 2 weeks ago. I noticed the there were some wires not connected to ecu. Pink and orange for sure, maybe white too. I also noticed the two ground wires of safc... per instructions on vfaq, they need to be on ground on ecu. one has to be closer to the plug harness than the other. I noticed that both wires where grounded together as one piece on the radio tray area. is this okay? per instruction you are suppose to cut air flow signal wire on ecu and splice to afl on afc... what if it was just spliced to the proper wire but was not competely cut? thanks

 

[packinkimber45]

anyone?

 

[spoold]

they are for other kinds of MAS, our cars read in Karhman's and do not need those wires, yes there will be a few un-wired wires in your harness, but that is a-ok, our DSM's do not use them.

 

[packinkimber45]

how about the way it is grounded... is it ok. thanks.

 

[Newlogics]

hey guys, I was going thru all the wiring for the safc on my 90 tsi awd that I bought 2 weeks ago. I noticed the there were some wires not connected to ecu. Pink and orange for sure, maybe white too. I also noticed the two ground wires of safc... per instructions on vfaq, they need to be on ground on ecu. one has to be closer to the plug harness than the other. I noticed that both wires where grounded together as one piece on the radio tray area. is this okay? per instruction you are suppose to cut air flow signal wire on ecu and splice to afl on afc... what if it was just spliced to the proper wire but was not competely cut? thanks

SAFC needs to be grounded on the ECU exactly per instructions.

If Airflow wire isn't cut, SAFC won't work. I'm not sure if it simply won't have any effect or actually screw up airflow signal by adding another signal on top ot if, but either way, it won't do what it needs to do.

 

[packinkimber45]

ok thanks. I'm just trying to make sure things on the car that is done is straight. It seems like the person I bought this car from was either retarded or just didnt care about the car. thanks again.

 

[patty AT forge]

There are two wires in the SAFC harness that handle the airflow. I won't comment on the colours because I'm not 100% certain that they didn't change between versions of the SAFC but the stock wire needs to be cut, the part of the wire coming through the firewall needs to be connected to the airflow input wire and the wire comming off of the ECU harness needs to be connected to the airflow output.

 

[spyderturbo007]

A friend of mine neglected to cut the airflow signal wire to the ECU and decided that he was just going to splice into the wire instead. Let me say, that car would barely run. The timing was jumping all over the place, the car was bucking, smoking and then not smoking. It was a mess. Poor ECU didn't know what was going on.

Freakin' retard. I even printed out the directions and told him to follow them step by step.