PowerFC values for GM 3-Bar MAP? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

productions14 · 08-25-2007, 03:05 PM

My car's at a tuner right now and he's having trouble getting the PFC to read correctly with the GM 3-Bar MAP sensor I've been using. On the previous tune it was running 18-20psi on a GT28R and now I have an SC61 (basically turbo setup is all that has changed) and it breaks up after 14 psi (sort of acting like a 2-Bar MAP). If anybody knows an easy fix for this, as the car has had (apparently) 37 dyno pulls (which tells me I run good oil and did a good job building the motor ha), and the tuner has thus far been unable to get it to read correctly above 14psi. He said its the MAP Sensor 'scaling.'

Anybody?

08-25-2007, 03:05 PM	#1
productions14 Join Date: Sep 2005 Location: Arlington Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	PowerFC values for GM 3-Bar MAP? My car's at a tuner right now and he's having trouble getting the PFC to read correctly with the GM 3-Bar MAP sensor I've been using. On the previous tune it was running 18-20psi on a GT28R and now I have an SC61 (basically turbo setup is all that has changed) and it breaks up after 14 psi (sort of acting like a 2-Bar MAP). If anybody knows an easy fix for this, as the car has had (apparently) 37 dyno pulls (which tells me I run good oil and did a good job building the motor ha), and the tuner has thus far been unable to get it to read correctly above 14psi. He said its the MAP Sensor 'scaling.' Anybody?