8th Generation Honda Civic Forum - View Single Post

escocrx · 06-26-2008, 12:06 PM

i believe 2.80V is 0.5psi on the MAP sensor, this is where greddy clamps the voltage. So I'm guessing the ECU only sees 2.8V no matter what during boost.

however the MAP will read all the way up to 12.2psi according to my datalog which put me in limp mode right when it his 12.2psi.

so

0.5psi or higher = 2.8V by greddy clamping
I have 0.2psi = 2.77V where the MAP is still functioning as stock. So I guess 0.2-0.5psi is where it really clamps off, i just see 0.5psi = 2.8V on this log.

3138rpm, 3.01V MAF reading, 0.5psi/2.8V MAP reading is where i get clamped voltage on my map. obviously this will vary, its again just from the log i'm viewing now.

06-26-2008, 12:06 PM	#135 (permalink)
escocrx Senior Member Join Date: Apr 2006 Location: 760 Posts: 235	i believe 2.80V is 0.5psi on the MAP sensor, this is where greddy clamps the voltage. So I'm guessing the ECU only sees 2.8V no matter what during boost. however the MAP will read all the way up to 12.2psi according to my datalog which put me in limp mode right when it his 12.2psi. so 0.5psi or higher = 2.8V by greddy clamping I have 0.2psi = 2.77V where the MAP is still functioning as stock. So I guess 0.2-0.5psi is where it really clamps off, i just see 0.5psi = 2.8V on this log. 3138rpm, 3.01V MAF reading, 0.5psi/2.8V MAP reading is where i get clamped voltage on my map. obviously this will vary, its again just from the log i'm viewing now. Last edited by escocrx; 06-26-2008 at 12:07 PM. Reason: added "during boost" so it wont be like wtf.