I have a 2005 jaguar s type 3.0 ibkeeo getting restricted performance. I got the codes read and it was a misfire in cylinder 5. Changed coil and plug. Fixed issue, 2 weeks later came back what could it be 2005 Jaguar S-Type First episode of restricted performance. Jump to Latest Follow. 29K views 54 replies 21 participants last post by Titanflux Feb 24, 2014. T. Titanflux Discussion starter. 1840 posts · Joined 2014. #1 · Feb 11, 2014. Started up this morning, sat on the drive briefly to set the nav to go across to Harrogate. Drove for about 5 mins then put my P0171 & P0174 Restricted Performance (Resolved) I got the dreaded Restricted Performance message on the way back from the Tan Hill meet. Car goes into limp mode and wont go past 3k rpm. I few things I noticed, the earth behind the headlight sheered off when I touched it, so this was renewed. 1. Run engine at about 2,000 rpm for about 2 minutes under no-load. 2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed. 3. Turn off engine and disconnect throttle position sensor harness connector. 4. Jaguar Master. 53,816 Answers. Run the fault codes as the engine light is warning you of potentially expensive problems if you continue to ignore the warning. The ECM puts the car in limp mode to help protect the engine and transmission form damage but if you continue to play at fixing rather than going to a specialist shop and have the codes Posted on Sep 16, 2009. SOURCE: 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. Jaguar S Type V8 2000 starting problem. a common problem with the jaguar aj26 v8 engine around that year is low compression due to wear on the nicosil coated bores to get it started you can try removing the fuel pump relay in the boot/trunk fuse box and cranking the engine and keeping the throttle pedal to the floor when it fires get someone to The car is the "restricted performance" mode and - Answered by a verified Jaguar Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. DVIvU2R.