I then disconnected the AFPR and took some educated guesses (conservative) on the values to put in the fuel map, datalogged, and tuned from there. I then adjusted the scale on the vertical axis of the maps to give me the most resolution between those values - I wasn't planning on changing anything whilst off boost. In my case I had a range of 2.15V to 3.0V for 0 to ~6psi. I used to use an AFPR so just did a couple of datalogs to see what boost voltage I got - and knowing I ran around 6psi allowed me to set up the maps. Next you need some sort of calibration for the sensor. Once you have the MAP sensor connected go in to the support tool check the box in Parameters Settings for Greddy Pressure Sensor and select "GReddy Sensor (V)" in the vertical axis in the injection/timing maps.įor the maps you need to know what voltage is atmospheric pressure - easy enough just connect everything up and with the engine off check the voltage in the support tool real time display.
I used a CDRom audio cable out of a PC to get the emanage end of the connections. The GM connection details can also be found here Robie The Robot Should be pretty simple though.ĭo you have your MAP sensor yet? I assume you're going with a GM one? You can get the connection details from the yahoogroup - I went with a Weber one which is slightly different, if you happen to have one of these the connections are as follows (the GM IS different): Was that it? Or was it something to do with setting up the MAP sensor - I haven't done that for both the TPS and pressure sensor inputs at the same time yet. The WB has its own logging function so may not bother. I'm installing a wide band in a few weeks, so will need to change the "calibration" to 0-5V, if I still want to log A/F in emanage. As its a narrow band its only a crude measure of A/F ratio, so I'm just looking to see rich conditions. I'm guessing you mean how did I "calibrate" the TPS input to suit the O2 sensor? If so, I used no connection to get the bottom end of the scale - ended up with 0.1V, and used a 1.5V battery to get the top end (1.45V).
Can you explain how you go about setting that up? i plan to use the MAP sensor as well.Īlso, can you explain how you are logging the O2? Did you just run your O2 wire to the TPS spot? If so, how do you do the initial set up of the car? (where you set the 0 and 100% of the TPS.)
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