This is comical. I'm all set to button this thing up and don't know which of the four MAP wires carry the signal. I call Snow and they don't know. They are incredibly friendly and willing to help, but I've gotten "I don't know" on several questions that one would need to know in order to install this. So, I'm burning almost as much time figuring out things on my own. Yes, I'm pretty "not happy" that I have to do all the homework.
So, anyone know which of the 4 wires carries the MAP return signal?
Update 1 After it's Running:
Mike is a rock star (
http://www.ecoboostperformanceforum.com/index.php?topic=524.0), he posted a picture of the pinout for the MAP sensor.
Also, thank you SHOdded!
Now on to the next challenge... Figuring out how to convert all the documentation, which is 99% about MAF, to our MAP sensor. I was told to use the SW4 jumper settings inside the controller because our MAP sensor is likely in the 0-5V range (still have to find the true voltage range of the 3 bar MAP sensor). It's not turning on, but I only just figured out which MAP line to tap into.
Update 2: Lo and behold, there's tons of data on the voltage curve of the Ford MAP sensors. Thank goodness;) Check that, there's tons of data on GM's MAP sensor, some on Bosch, and Google didn't find anything on Ford's...
Hey SHOdded, what's the difference between MAP and VREF? I took #1, assuming it would be the 0-5V value I need. Update: I think VREF is 5V going in and the MAP is the return voltage based on pressure. So, a 5V MAP has 5V going in via the VREF line and MAP returns 0-5V. Did I get that right?
Final Update for the Night: IT IS ALIVE! I've got LMS 93 Octane map in there and I live in a place where sewage water likely has a higher octane. That's all I wanted, to get the effective octane high enough to run a 93 map. Thank goodness I've got a RXP Catch Can sitting here to go in next because the throttle body was soaked in oil.
I'll put up more picture and I'm sending a ton to Snow so they can share the knowledge for the next folks in line.