I have a 2004 S-Type R and the restricted performance light came on for the second time in the past 30 days. The first time it happened codes were P1474 & P1582 or (Inter cooler water pump & flight data recorder) jag took care of these problems but during the 30 days after the work the light has popped on and off 2 but now it is just constistantly on. I bought this car used and I have only had it for 37 days now, I am just wondering if this is a common problem or I got a lemon.

 

Why don't you take the car back to Jaguar if they have already dealt with the issue? And I don't think a warning light coming on means you got a lemon. It could be a faulty sensor.

 

The original codes said Water Pump, check on that, not sure if that will trigger restrictive performance, but in my case it might be a vacuum leak, like in my case a mechanic ran a smoke machine around the engine and found small vacuum leaks behind the supercharger. I replaced the egr valve which was cracked Egr tube and several other plastic pieces which over time crack and turn into brittle. While I was in there changed the pulley and changed all the belts. The system has to be completely sealed or you will get that, i had several codes in there and addressed them all at once. How many miles does it have?

 

To answer the OP - it's an uncommon problem.

Require them to fix it!

 

One post. I hate it when they post and disappear!

 

I posted and disappeared because my father died this week and my car really was not my worry, so if member name "Enthusiast" was talking about me, just keep your comments to yourself.

 

So Jag cleared all the codes on my car to see what new codes pop up. With in 24hrs in doing so restricted performance light came back on and I had jag grab the code. They are telling me its a P1000 and from what I understand its one of the modules that is causing it.

 

Er, go somewhere else!! They should know P1000 is a not an error: it simply means that various emission tests (monitors) have not yet been completed. When they do, and if there are no other errors (DTCs), you'll get P1111

John

 

yeah p1000 comes up if you scan it before the car has a chance to cycle through everything. And sry about your father though. especially today

 

My condolences on the passing of your father I hope your able to work out whatever issues you have with your jag.

 

I have an 03 S Type and the engine light is on and the Restricted Performance message I would like to know what I can expect to pay to repalce coils and or the 02 sensor please.

 

mesmerizing, can you tell us the codes that were found on your car? Engine light and RP message doesn't necessarily scream 'coils' or O2 sensor.

And, just to see in the future, if you have the codes that say these two possible causes, would you please start a new thread asking your original question. It is important to keep the original topic unchanged in each thread to keep from jumping around too much and getting confused. Thanks for understanding.

To the OP, my condolences, and I recommend a new dealer look at your car, or better yet, call around and find an independent mechanic that has some experience with Jags. That P1000 code interpretation by that dealer is just plain silly.

 

Well the car is going back to the shop (a different one) on thursday, its still pulling up the water pump malfunction, even though I have replaced it. They are going to put new wires on it, if this doesn't work then they figure their is a communication problem with one of the computers. Anyways when the car runs well I love it.

 

Well they figured it out, the dealership that installed the new supercharger water pump mounted the wiring harness incorrectly. They put it between 2 pieces of plastic and under high engine torque it would pinch so much it would lower the voltage to the pump. What a stupid little thing, the total amount of money spent on trying to find this problem, 2 different dealerships and a total of 1903.46 no parts just labour lol