SLEI

My friend has bought a MSD closed loop chip for his 4x4 Sierra Cosworth and has a wide band lambda controller (Tech Edge).

What kind of values should we program to the controller when we connect it to the ECU?

Have someone bought a narrow band lambda sensor from MSD with a chip what is code for this sensor?

Original 4x4 sensor is a little bit different than the other lambda sensors maybe it gives also different voltage out?

Chip

iTrader: (3)

Voltage out on the 4wd sensor is the same as any other as far as im aware.

Assuming that is the case, you techedge needs to be setup as per on their site.

Its an S curve basically, with 14.7 being at 0.5 volts.




Personally though, on my techedge (i had one about 6 years ago, but they havent changed much) I went for a seperate narrowband sensor instead, I would recomend you do this with a second bung, its more reliable long term, and it provides a handy mechanism for checking that the wideband is working properly.

So I wouldnt use the simulated output anyway, even though I have in the past and it worked ok, the disadvantages outweigh the advantages IMHO