Fuel Rail High Pressure Sensor Upgrade

[djuosnteisn]

The 2030 psi # is probably speculation, dunno where it was chosen from. My guess is it'll read closer to 2100+. Someone could simply put 5 volts on the sensor line and see what # they get on a DH for fuel pressure, and call that the stock sensor limit.

Here's some data points i took a while back:

[Erich]

Originally Posted by djuosnteisn The 2030 psi # is probably speculation, dunno where it was chosen from. My guess is it'll read closer to 2100+. Someone could simply put 5 volts on the sensor line and see what # they get on a DH for fuel pressure, and call that the stock sensor limit. Here's some data points i took a while back:

As mentioned, 2073.9 as logged on both the AP and DashDaq with two different stock sensors. 2030 is the max the AP will put on its display (and shows it as it top limit on display) but while displaying 2030 it will log values as high as 2073.9. I guess I could try logging to ATR to see if there is a difference. But is it possible the ECU isn't allowing the full range of the sensor as SB users seem to get higher readings?

Originally Posted by Erich In actual operation it would appear that the ECU is capable of reading 2073.9 off of the stock sensor. This is what I was able to log on my car using two different stock sensors (on both the dashsaq and the AP. The AP would only display 2030, but the logs would show 2073.9). I believe SSInstaller indicated that when logging through his SB, he can get readings much higher off the stock sensor (2100+ and he had seen others higher.)