The EFIE is for the O2 sensor. You have a MAF or AFM. I think they can be one of two different desigs, and depending on the design would dictate how you would manipulate it.
If it has five wires, that kind of sounds like the AFM on my Toyota pickup. That AFM has a pot on it that can be dialed one way or the other to richen or lean the fuel mixture.
This write-up will probably help you: http://www.fuelsaver-mpg.com/doc/TuningForMileage.html
winkle Wrote:Hi to you all,< to mike and the machanics>
I' am in the uk, i have a Peugeot Partner HDI 2000 year 2005
there is no o2 sensors in my system But! i have a air flow meter fitted to the air filter,i ve been told that the air flow meter controls the computor..so would i use a efie at this point?? its a 5 wire unit
can you advise me ???