Question about 2009 Jaguar XF Supercharged

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Restricted performance mode xf - 2009 Jaguar XF Supercharged

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Did you actually check for voltage with a test light or digital multimeter? Did you check the ground circuit? I don't know much about your particular vehicle, but, the basics are the same, voltage and ground.
The diagram doesn't say aux, but, the basics are there.
restricted performance mode xf - restricted-performance-mode-xf-y0mjgib5413xa3ny20grhvjd-3-0.jpg

Posted on Oct 18, 2016

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After replacing the aux coolant pump. Fuse and relay the aux pump still not coming on. RP mode when strained.Any ideas guys?

Posted on Oct 18, 2016

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1 Answer

Jaguar XF 3.0 V6S diesel showing Restricted Performance.I have cleaned the mass air flow sensor as I had an error code showing this. If the engine is turned off the warning goes away. Help please.


It could be as simple as a vacuum leak. The emissions are probably changing (lean or rich) at higher RPMs. You need to monitor the emissions & go from there. Have a qualified tech ck it. The high RPM issue will require some professional equipment.

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My daf xf 480 an error in speed engine, it maximum 2000 rpm, what i have to do?


take it to a DAF service center or have a technician come out to inspect the fault
with limited engine rpms it is possibly in limp mode where the ECM restricts the engine speed and vehicle speed because it has registered a fault that is detrimental to the engine or transmission
LImp mode is only available to allow the vehicle to get to a safe place to stop so that the codes can be read and repairs effected

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2009 XF 4.2L Where is crankshaft position sensor located?


2009 JAGUAR XF 4.2L V8 Supercharged Auto Parts

https://www.rockauto.com/.../x,carcode,1442330,d,2009_JAGUAR_XF_...
RockAuto has parts for your 2009 JAGUAR XF 4.2L V8 Supercharged and all ... XF 4.2L V8 Supercharged Ignition Parts, Camshaft Position Sensor Crankshaft ...

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2009 Jaguar XF - misfires on the drives side bank, smokes uncontrollably when accelerating and restricted performance indicator/check engine light stays on.


And what codes do you get from the car's computer? That's what the "check engine" light is telling you to do.

Smoke is typically a bad sign. Blue smoke is an indication of oil getting into the combustion mix. White smoke is more likely coolant.

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Check the water proof covering of all the wiring connections as there is one that has failed and allowing water into the connection when it is wet . Seal with spray wax after drying out the connection

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the car is in restricted mode...you must have the ecm codes read to see why its in restricted performance mode..it sounds like a vacuum leak which is causing a knock or misfire

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Talk to trading standards they will advise how you go about getting a final solution with a time frame - this will ensure that the car is fixed or returned - do not leave it !! as the longer it goes on the weaker your position becomes !

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