OBDII Fuel Pressure
Posted: October 23rd, 2010, 7:46 pm
FYI: According to the FSM my 2005 TJ's fuel pressure is 58 psi +-2 psi. Keep that in mind when sizing fuel injectors for newer Jeeps.
Its not that on all OBD II vehicles. 97+ XJs are 49.2 psi +- 2 psi. The 2004 WJ FSM lists it at the same.
Here are some good calcs?
http://www.witchhunter.com/injectorcalc1.php4