1999 Jaguar Vanden Plas Repair Question
Topics covered: Fuel pressure, Check engine light, Engine.
Mileage: 167,000 miles.
Mileage: 167,000 miles.
Asked on May 28, 2011
1999 Jaguar XJ8
I have a 1999 Jaguar XJ8 Vanden Plas. It has 167,000
miles on it and was running great. Still does except when it spontaneously quits! It will run for give or take 2 hours and then it quits. You can put it in neutral and it starts up and it may run for 15 minutes or 2 more hours before she quits again. It takes several of these shut offs before you get a check engine light. The code is P0121.
She is a great car and I would love to be able to trust it to run until I shut her off. They do not make new throttle position sensors anymore. Any ideas?
miles on it and was running great. Still does except when it spontaneously quits! It will run for give or take 2 hours and then it quits. You can put it in neutral and it starts up and it may run for 15 minutes or 2 more hours before she quits again. It takes several of these shut offs before you get a check engine light. The code is P0121.
She is a great car and I would love to be able to trust it to run until I shut her off. They do not make new throttle position sensors anymore. Any ideas?
Asked by Robert KrehbielAnswer
Replied on May 28, 2011
Check and monitor the fuel pressure with a fuel pressure tester to rule out a failing fuel pump-start here
Replied on May 28, 2011
Thank you. I will try that and let you know