I have a 2009 JK and want to install a Autometer fuel pressure gauge to work next to voltmeter and oil pressure gauges. Does anyone know the mean fuel pressure (psi) running through the fuel rail for the 3.8? Autometer has three models to chose from - 0-15psi, which seems low. 0-30psi ??? and 0-100psi. Any help would be appreciated.

 

58 psi +/- 2 psi

Please post how you tap into the fuel line.