I'm trying to put an AFC in with little or no success. Here we go for teh 8th time or so. I've emailed RRE, Doug's Dyno power, Curt Shambeau, and Opus_X of club 3g, i've talked to imjip briefly...nobody has any clue why my car is doing this. I just PM'd seth to see what he has to say.


RRE response

Try making and installing a filter for the rpm like they do with the 3G
Eclipses. Or try to find a better place to get the rpm signal. Search around
on the club 3G site for more info on the problems with the AFC on 3G cars.
It is only on the V-6s. We don't find the AFC very useful on NT Mitsubishis
so we have not run into your problem on one.

Mike W


> -----Original Message-----
> From: Chase Voisin []
> Sent: Tuesday, December 30, 2003 6:02 AM
> To: [email protected]
> Subject: To ROAD RACE
>
>
> AFC2 problems on 97 galant ES (4g64) car
>
> I'm currently putting it in and what is happening is my karman
> readings at idle and just about anywhere are cyclical coming
> upward of 1000 hz at idle for a brief moment then dropping. This
> is causing the ECU to try to compensate for it, which happens and
> the motor bogs every time. I emailed Tony Kan of club 3g since
> he seemed to have more info, he suggested to contact you guys. I
> feel bad for asking since you guys are always busy, but I hope
> you can have a clue as to what is going on. Other than my Karman
> readings being funky all the other readings are normal, throttle
> is inline with what it should be, the RPMs are around ~ + or -
> 100 RPM off. The karman readings are good just that the spikes
> i'm getting are terrible.
>
> Thanks,
>
> Chase Voisin


Opus X response

Hi Chase,

The symptoms sounds alot like what I experienced when I installed the SAFC
without a fix. I know on the 3G application if you connect the RPM signal
from the SAFC straight to the distributer, you'd get these huge voltage
spikes that would bleed through the karmen signal and cause the car to
sputter and sometimes even die. The only way to know for sure is to put the
signal on a scope and check the voltage readings on the tap you're using the
RPM signal. I'm not all that familiar with the 4G64 so don't take what I
say as fact, I'm merely speculating. Have you tried contacting Road Race
Engineering? Mike W. would probably know a thing or two about the Galant.



>
>


doug's dyno power


Assuming you have the mass air connections of the AFC on the correct mas air
wire to the ECU. What color of mass air wires of the AFC harness did you
use? You have to use the yellow and white wires. The Apex directions are
incorrect in saying to use the pink and orange, those wires are for a twin mass air
meter system in which all four would be used. For a single mass air the white
and yellow must be used.
Otherwise its possible you have a bad ground, or bad connection itself with
the cars stock mass air wire going to the ECU.





allright....

I"ve tried DDP, tha'ts really wrong, RRE i haven't had a chance to try yet, Kurt told me to check barnone to get pinouts of 4g64 but aparently they are different for spyders according to jip.


Someone...anyone? tell me how to get this going...seth's diagrams are DOWN and nonfunctional at the time and jip has to get home to get the diagrma for me.



EDIT: I also discovered i had my negative grounds wrong ...so i fixed those and put them brown wire nearest the ECU and black wire nearest motor.