Another fuel controller to look into...

[Flat Black]

Possibly a parallel circuit?

 

[jred321]

possibly, but the thing is if it were parallel, voltage would be the same across all paths, and it has been measured that voltages are not the same...
but really i know nothing about electronics so who's to say this is a closed circuit system at all?

 

[Flat Black]

True, I don't know s*** either. I just got these tables out of my engineering book for school.

 

[perfworks]

i side with insidious. I mean the whole reason we come to THIS board is to gain knowledge. A lot of knowledge is gained by searching, but then again most of it is attained from other members and interacting with one another discussing things. it seems as if more than half the time we are arguing and bickering and not really finding s*** out about or cars.

I believe if you really know why our ecu's dont work with afcs/emanage/blah blah blah then you, as a member of this COMMUNITY should tell us. The word community in its root means together.

All im saying is that if you know just be nice for once and lend us your opinion. Since when did helping people out become such a terrible thing?

Cant we all just get along??

Oh and i lost my wallet today. s***.

-B

didnt know we were picking teams here!

 

[perfworks]

ok, i did some more searching and perf has said:
"cant control the A/F ratio thru the MAF without the unit being calibrated for amperage not voltage"

and
"the meter in the protege is from 1.5v to 5v

1.5 KO
1.8 idle
2.5 2500 rpm
4.6-4.7 WOT"

so since the voltage of the meter is within spec for the s-afc and other piggy backs, wouldn't we simply use ohm's law to figure out the correct resistors needed to get correct amperage signals to the ecu?

if you search some more you will see some info on the resistor issue.

We have tried this in the past. IT IS COMPLETELY possible to do this. BUT TO get to the point where you are finally running properly stock then you need to work on the resistors for upping performance standards. The issue then increases in difficulty when you go with forced induction. Then some want to add larger injectors.

if you (insidious) would have read the posts more carefully you would have noticed that i did mention why it WONT work. THE MAF receives a certain signal and then produces another. The problem lies in figuring out what signal to provide the STOCK ecu so it will see a signal within limits. AT THIS POINT there is no unit that is able to do this in CLOSED LOOP OPERATION. DECKEDOUT has the right idea. The only way to go is with a standalone. BUT my opinion differs slightly than others on this subject because i chose to incorporate all the stock sensors and the stock ecu while running the piggyback or standalone in parallel