97 Green Machine
NAXJA Forum User
- Location
- Watertown, WI
What should the fuel pressure be at idle on a 97 XJ? Mine is hovering right around 50-52 PSI at idle. When I give it some gas and rev it up it stays exactly the same. After I shut the engine off the fuel pressure quickly drops from 50 PSI down to about 20 PSI. It then stays at about 20 PSI for a few minutes with no drop in fuel pressure. Is this normal? I'm trying to track down the cause of the horrible gas mileage that my XJ gets, and I'm hoping that this is the problem.