XJR Restricted Performance
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For what it's worth - I also had the restricted performance issue on my '01 XJ8. Strangely enough, this happened just after I installed K&N filter. BUT, turned out it was not related - or at least the code I was able to get was knock sensor malfunction on Bank B. $25 and 20min later, replaced knock sensor and problem never re-appeared (and still gladly have the K&N fitted!).
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xjrjag
XJ XJ8 / XJR ( X308 )
18
09-27-2015 01:53 AM
kevo
S-Type / S type R Supercharged V8 ( X200 )
2
09-08-2015 09:45 AM
2005, code, fehlercod, jaguar, light, performace, performance, restricted, restriction, vdp, warning, xj, xj8, xjr, xk8
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