Question about 1998 Jaguar XJ8L

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Stability & Traction Control Fail

My Jaguar XJ8 is showing Stability and Traction Control Fail upon starting. Also now after some driving its showing restricted performance and then its stalling and refusing to start. It starts then whenever she wants. Whats the problem? also it showed Engine Fail Safe and Engine Coolant low whereas the engine coolant is full. Please help

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  • Abhimanyugho Jun 28, 2009

    the car starts and then it stalls whenever it wants. My mechanic said first it could be a air problem and now he is checking the ECU. Is there any problem with the ECU? or is it a problem with the MAF Sensor or some other sensor.

  • Abhimanyugho Jun 28, 2009

    ya but also upon idling there is a slight hissing sound coming. And also till the engine reaches its operating temperature there is a slight sound that comes from the engine. Could there be a problem with the gasket?

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Electronics are funny that way. If it does it hot then a module problem is likely

try fixing it by
removing the negative from the battery (in trunk) this resets the abs control module these cars have about 6 different modules for different systems and sometimes the connections can get corroded as well. The US market cars will not lose their radio codes when batt is disconnected.

try these simple steps
Check your battery voltage and connections, particularly the earths....two in the boot, three under the bonnet, these are open to corrosion.
Next remove your abs sensors on each wheel hub and clean off the debri that collects on them, also check and clean the connectors with electronic clweaner/lubricant spray.
When was the brake fluid flushed?
Still no joy, it's time to have a scanner run over it to pick up codes and have an indy check it out.
If you go onto the Gendan site you can find out what the codes mean.

Posted on Jun 28, 2009

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Ok first it has nothing to do with an air intake..tell your mechanic that..What happens is the ECU is reading a fault and to prevent further damage to engine,this is what all ECU does, they go into a safety feature and thus you loose out perfomance and the engine power goes down.You need to have this car diagnosed with a computer in order to solve this problem else you would end up changing all sorts of parts and end up spending more than required.Many mechanic do not understand this concept as this is quite high tech and most recent cars have the same features.I hope this helps and please do not spend money on buying parts without first plugging this car to a computer..Hope this helps.Good luck.

Posted on Jun 28, 2009

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Hi there,

This can be caused by a few things. Diagnostic Trouble codes needed to diagnose. many auto part store will read codes for free, please post codes

Thanks

Posted on Jun 28, 2009

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To check the Maf sensor without the special tool you must measure the ground while the car is running(with a multi metre).If it gets oil from the from the pvc system the maf sensor is faulty.However it could be electrical in few cases. Why do Jaguars drop half their cylinders if there is a problem? Yes, To protect the Converter from being damaged also other things

MAF sensor and it did not help. Tried running fuel injector cleaner and exchanged coils (side to side) to see if fault would move. Found out the a Jaguar dealer replaced all injectors. It has to be something simple. Codes P0201, P0204, P0206, P0207 and P1000.



Low compression on just 1 cylinder? Could be burnt valve or head gasket, get a block test done, tool is about 50.00 snifs gas in antifreeze, to detect gasket problem...


the compressions for 1,4 are ok. but the compression on 3 is a little low. is this motor a higher milage motor. the codes u have and miss fire codes. replace the spark plugs and coils for the cylinders. make sure you get the right side on the engine the miss fires are coming from. the copression should increase when the engine starts running correct. the miss fires also will trigger the p1313 for catalyst efficency. replace the coils and plugs first changed the oil and then drive car let me




have run scanner and there are no codes, I did ask ican the obd11 scanner be connected and then start car and operate until fail safe appers on message center and then can i clear codes with engine running and not cause any problems ??? Scanner manual says do not run with engine on.


Yes do not if all you have is a code reader. I was talking about a diagnostic scan tool. I recommend you take it in and have a Trained Tech diagnose there are many possible faults and via internet not able to solve.









Posted on Jun 28, 2009

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