EML Light keeps coming on.

[FazerScotty]

Chaps, (and chappessess)

I have a 2001, 2.5l, V6 Petrol X-Type. 130,000 on the clock. just recently it has developed a habit of the EML light coming on. I can reset it, but the code reader I have is low budget and when asked for the fault codes the following appear:

#1 N/A

#2 P1000

I know that P1000 is the Jaguar "all is well" code. With light on, there is absolutely no difference to power or M.P.G.

I have also noticed the Oil Pressure light flickers, ever so slightly on start up - could the two be connected (maybe Oil pressure switch) or will I have to bite the bullet and take it to the Dealer for a proper diagnostic?

I look forward to receiving your comments/views.

Thanks.

[LadyRobben]

My 54 Xtype estate has a similar problem.  I have had all the codes repaired as it was asking for upstream sensors.  Reset the computer ....20 minutes of running later light on.   Now just showing same codes as your.   Jag Gremlin????

[Raistlin]

I regularly get the MIL on in my car and it's always P0137 and P0157. I've changed the sensors, checked the wiring etc but still the same fault indications come back. No perceptible effect on the car's performance though. At first I thought it was just when running on gas but sometimes happens on petrol as well. Just can't solve it.

[FazerScotty]

An update.

Yesterday I changed all of the spark plugs (I read another post on here suggesting this may be a cause).

After I had finished that task, I then noticed an earth strap to the battery was loose. Strap tightened.

EML light reset at some point over the afternoon, can't remember if it was before or after the battery strap.

Three starts in a row - no light.

Went to work this morning - first start and the lights back on. Driven for approx an hour with the light on.

I have just reset and will see what happens in the morning.

Whats bugging me is that there are no "P" codes showing, to which I can then throw money at!

[LadyRobben]

I have changed sparkplugs, upstream Lamda sensors, and did everything bar a Cherokee good hunting dance......it still has its light on and all I get are the "happy codes". I swear there is a gremlin in the blooming thing!  A master's in engineering and defeated by a computer!!!!!

[mike_msch]

Oil light flickering on and off on start up is fine, as long as it stays off after. You need to get a OBD reader with its own device. bluetooth ones are hit and miss. P1000 is ok but that means you have just reset it. P1111 is the code that permanently stays on the system which means all checks done and OK etc. Launch creader 3001 works well on the jag. Amazon sell it for less than £20. That will bring up the code straight away. I use it all the time. 

[FazerScotty]

Mike,

I have and use a OBD reader - just not getting any "useable" P codes coming up - thats what I'm finding frustrating.

Reset everything yesterday afternoon (again) Anyway - drove to work this morning. No light. Had to stop at Sainsbury's. Upon starting (2nd time this morning) with a warm engine, light comes on. Reset before leaving work - I will see what happens tomorrow after sitting all night and getting nice and cold.

 

[mike_msch]

Could be a a loose connection on one of the sensors. But then again the fault should be stored. What OBD reader are you using? It might be worth trying a different model of OBD reader before paying a garage (some will do it for free). You could have a faulty ecu. The ecu can have water leak onto it as there is a drain hole just above it along the top of the driver side quarter panel. My one seems to be covered. 

[david moore]

with the faults that you all are saying, comes across as electrical. I would find a good auto electrician who will go through each fault, and trace what the problem is, as it may be a short in the circuit, bad earth connections, or other cases to which it may be.  just a pointer for you guys …….