Question about 2002 Jaguar X-Type
Odd one this to have P1111 as well.
According to my data P1111 is all dtc checks compleated, http://www.bluejag.co.uk however some websites show it as a Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage, I'm fairly sure that the latter is incorrect.
check the basics first plugs, leads, corroded ground connections etc then its a bit of a guessing game
As for the other codes
P0301 = Misfire detected - cylinder 1
P1313 = Misfire rate catalyst damage - bank 1
P1316 = Misfire excess emission
Possible causes (as per JTIS):
Cylinder compression low
Worn camshaft / broken valve spring(s)
Fuel delivery pressure (low / high)
Fuel injector(s) restricted / leaking
Fuel injector(s) continuously open
Fuel injector circuit fault(s)
(Injector DTCs also flagged)
Spark plug failure / fouled / incorrect gap
ECM to ignition coil primary circuit fault
(Cylinder misfire detected DTC also
Ignition coil failure
hope this helps
Posted on Mar 20, 2011
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Posted on Jan 02, 2017
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