Question about 1995 Jaguar XJ6

2 Answers


Do the idle speed control valves in jag XJ6 GIVE PROBLEMS often?i think mine might be faulthy in my 95 model.any help would be great....

Posted by Glen Byrne on

  • 6 more comments 
  • mike1hour Jan 11, 2009

    My Jag 1995 XJ6 stall in idle everythings else normal. The car will start with no problem but will stall in low rpm. Replaced the o2 valve did not help.


  • Glen Byrne Jan 12, 2009

    What is an o2 valve???

  • Anonymous Jan 13, 2009

    I have similar problem and my |jaguar agent cannot find out what problem is after 5 weeks, no problem showing on engine management computer

  • Glen Byrne Feb 12, 2009

    The problem was the sensor below the throttle body.Was faulthy.Runs perfect now.Thanks for the help

  • Nakia Taylor
    Nakia Taylor Mar 17, 2009

    I noticed about a couple weeks ago, my car started idling up at around 1500-1900rpms. I uplugged the idle control switch mounted on top of the throttle body just before the throttle plate. I then started the car an the rpms were back to normal. If i left this unplugged after driving the car, then the rpms went back to 1500-1900 rpms. If left plugged up when starting it the next morning, the car started at 1500-1900 rpms. This lets me know the problem is in that switch.

  • Thomas Puls Jun 27, 2013

    My 1996 Jaguar 1996 XJS won`t idle down after replacing idle control valve

  • Anonymous Mar 16, 2014

    93 Jag XJ6 power steering pump area has roaring noise and very loud high pitch squeel

  • Anonymous Mar 17, 2014

    location of cigar liter fuse 97 JAG xj6



2 Answers


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 135 Answers

Hi the idler valve has a set up with jag equpment but there is a way round this,ifyou have had  O2 sensors changed, is the idler working what are the revs when hot. 650 is to low  850 is ok with a hot engine Mike do you know where the idle valve is and the allen key manual adjustment try a quarter turn but mark it so you can turn it back if need be. let me know how it goes   D    

Posted on Jan 11, 2009



  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 4 Answers

After I changed the O2 valve, check engine light doesn't come on but the engine still quit in idle.

What I needed to do is to increase the rpm for idle which was very easy. Under the hood just after the coil where the gas pedal cable connected there is a slider with adjustment stopper in the middle.
Just twist the stopper counter-clock wise and move it forward, don't forget to tighten back. Find the right position for you, 850 RPM at idle works well for me when the gear in D position.

Posted on Feb 12, 2009

  • mike1hour Apr 13, 2009

    After changing all O2 sensors (4 of them) with light improvment. I got on ebay the throtle body assm. with idle position sensors on it.

    Replace the one in my car and now the car run perfect.



Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

High idle problems after replacing idle control valve for 1996 XJS conv.

Could be a vac leak or something holding the throttle plate open.

Jun 27, 2013 | Cars & Trucks

1 Answer


White smoke is usually coolant that went thru the cylinders,
such as a failed head gasket or other reasons

Could also be fuel- but that wouldn't be a continual visual
site when driving

STOP USING IT ---get it fixed Don't ruin a nice car

Feb 19, 2013 | Cars & Trucks

1 Answer

The idle speed control valve on my 96 Jag VDP was sticking in the open position causing a high idle in the 2,000 RPM range. I had to disconnect it, remove it and manually pull out the plunger to reseat it....


Feb 24, 2010 | Jaguar Vanden Plas Cars & Trucks

2 Answers

Jaguar xj6 4.0 1990. showing fault code fuel 14, fail 14. what does this code mean ?

2 airflow sensor out of operating range 3 coolant temp sensor out of operating range 4 oxy sensor indicates full rich 5 throttle potentiometer/airflow sensor... (low throttle pot signal with high airflow sensor signal) 6 throttle pot/airflow sensor...... (high throttle pot signal with low airflow sensor signal) 7 throttle pot...idle fuel adjustment failure(idle speed??) 8 intake air temp or shorted circuit to sensor 11 Throttle pot at idle: Throttle pot idle trim out of normal range 12 Airflow meter: MAF signal out of range 14 Coolant thermistor: Resistance out of range or static during engine warm up 16 Air thermistor: Resistance out of range 17 Throttle pot: Out of range 18 Throttle pot/Airflow: Low throttle pot signal at high airflow 19 Throttle pot/Airflow: High throttle pot signal at low airflow 22 Fuel pump drive: ECU output to fuel pump relay 23 Fuel supply: Engine running too rich 24 Ignition Drive: ECU output to ignition Amp 26 Air leak: Engine running too lean 29 ECU self check 33 Injector Drive: ECU output to injectors 34 Injector: Looks for Injector dribble 37 EGR Drive: ECU output to EGR switching valve 39 EGR check sensor: EGR not working (normally pipe blocked) 44 Lambda (O2) sensor: Poor mixture control rich or weak (or misfire) 46 Idle speed Control valve: ECU output to Coil AB 47 Idle speed Control valve: ECU output to Coil CD 48 Idle Speed Control Valve: Stepper motor grossly out of position 66 Air pump: ECU output to air pump relay 68 Road speed sensor: Seen speed < 5km/h at high engine airflow 69 Drive/Neutral switch: Seen cranking in "D" or high airflow in "N" 89 Purge Valve drive: ECU output to purge valve
this is all I could find

Nov 09, 2009 | 1990 Jaguar XJ6

1 Answer

Car wont start fault code 47. how to fix? 1993 XJ6

Fuel Fail 47 Idle speed control valve - coil 2: Open or short circuit.

This code 47 is signaling a malfunction that has occurred within the Idle speed control device. the code is saying that the circuit is inoperable at this time and you will need to service it or replace the entire device.

This is basically A computer-controlled air bypass valve located in the throttle body. It helps control idle speeds by allowing air to bypass the throttle plates as to increase the idle speed.

please rate and have agreat weekend:)

May 15, 2009 | 1995 Jaguar XJ6

1 Answer

Rough idle

might be your egr valve

May 01, 2009 | 1995 Jaguar XJ6

1 Answer

Idle around 1300rpm (X300 4.0L -95)

You can try this diagnostics for the xj6 -4.0L idle speed adjustment.
0c7fddc.png bfc8cff.png

Mar 31, 2009 | 1995 Jaguar XJ6

1 Answer

Jag XJ6 revs are too high

If you have replaced the Throttle postion sensor (TPS) or have replaced the battery, sometimes the car will need an engine set up.
I had the same problem with my xj6 and I did an engine set-up and it has been fine for the last 2 years. Also with the idle doing what it did it had a very harsh shift when driving and changing gears.
The BAD news is the dealer has to perform the engine set-up using the WDS (worldwide diagnostic system) The set-up will set the kick down switch, it will calibrate and set the TPS and also perform an oxygen sensor orientation test.
With the set-up it will allow the TPS sensor to be adjusted to the correct factory specs.
Sorry you can't do this your self.
This is obviously if there is no vac leaks and the throttle butterfly is set to 2 thousands of an inch. (gap on the side when closed throttle) check with a feeler guage.

Jan 20, 2009 | 1995 Jaguar XJ6

1 Answer

My jag runs ok on idle and misfires under load

do a compression test ?? about 180lbs anything less and it could need a valve regrind ,if compression seems ok then plugs and leads and use the bosch plugs with the 3 electrodes (for voltswagon) champion are **** and missfire.if still persists change dist cap and leads

Jan 17, 2009 | 1988 Jaguar XJ6

Not finding what you are looking for?
1995 Jaguar XJ6 Logo

4,223 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers


Level 3 Expert

85239 Answers

gerry bissi

Level 3 Expert

4388 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides