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Restricted performance - XK8 Jaguar Cars & Trucks

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I have a 99 jaguar xj8 van den plaus edition. It says resdtricted performance when it Gets warm and check eng. Light stays on. I replaced the computer any ideas


For the money you spent on another computer, you could have brought your car to a qualified mechanic and had the problem correctly diagnosed and repaired. 'Restricted performance' meant the computer saw something wrong in the engine, and restricted the performance to keep from destroying the engine. You killed the messenger and still have the same problem.

Dec 07, 2016 | 1999 Jaguar XJ

1 Answer

Restricted performance light is on


several things can cause restricted performance...anything from low circuit sensors,to malfunctioning modules...you must read the ecu code and pin point nthe issue..

Jan 04, 2012 | Jaguar XJ8 Cars & Trucks

1 Answer

Performance restriction


performance restriction popped on, then engine light stayed on. Any solutions?

Mar 04, 2011 | 2001 Jaguar XJ8

2 Answers

''Restricted Performance'' message on 2004 Jaguar XJ8


i have problem jaguar x type 2004 when many time motor is start the ligth amber turn on and massege engine fault problem.next the engine do not acceleration

Jul 13, 2010 | 2004 Jaguar X-Type

5 Answers

Jaguar s-type restricted performance


I had the same problem. Restricted performance and running rough at 3000 RPM. I have an OBDII code reader and found that the problem was in the air mass flow sensor, which is just after the air filter. I pulled this out and found it was dirty and had butterfly wings in it. The last shop where I had the oil changed replaced the filter for me but put in the wrong size. Close but no cigar. Bought some *** Flow Sensor cleaner at auto store and fixed the problem. Get an OBDII reader with the ability to erase the codes. Comes in real handy.

Oct 20, 2009 | 2003 Jaguar S-Type

1 Answer

Check engine light is on,display says restricted performance


Anything can cause the check engine light to go on from a loose gas cap, to a transmission issue. When the onboard computer detects an issue, it will restrict performance so as to not damage the engine any further. An Oil change won't affect this light. The only way to determine the cause of the light is to have the computer scanned with an OBD-II tool (Autozone does this for free) to determine the codes and cause for the light. You can also clear the light with the OBD-II tool, but if the problem is still there, the light will just come back on

Sep 16, 2009 | 2003 Jaguar S-Type

1 Answer

1 Red and 1 Amber warning light and message Restricted performance


Go to Auto Zone and ask the to run a diagnostic with their OBD-11 computer. This may still be a free service. Write down the error code/codes displayed. This should help pinpoint the correct sensor.

Jun 02, 2009 | 2006 Jaguar S-Type

2 Answers

"Restricted Performance" message and rough idling


My mechanic said that the front cxygen sensors needed to be replaced on my 03.

Aug 23, 2008 | 2003 Jaguar S-Type

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