get the 4 digit code read at an auto parts store. bring hte codes back to us so we can diagnose the problem. and keep gas in it like Mike and I said.

 

I ended up taking it to a local Land Rover Garage for the Check Engine Light.
The Guy checked the codes and looked over it and said it has a miss fire on cylinder #4 but also said that the wrong spark plugs have been installed and whoever looked at the plug wires only changed 1 and not the set.
He also said that the Base Idle had never been set from new as the silver cap was still on and the slight lack of power at 80km/h could possibly be the transfer box speed sensor.
Didnt hardly cost anything to get checked so im going to do the 60k mile service recommended on the forum. My weekends work!!
Need to look into the Speed sensor on the transfer box. Any ideas?

 

We need to know what year it is.

 

Its a 1998 with 217k km's

 

Order some Magnacor 8MM wires and new plugs. Change your fuel filter this weekend. Running low will suck up all the crap in the tank in addition to burning up you pump. Give it a good tune and see how she runs. If it is still stumbing, order a new VSS at roverparts.com. That is the sensor on the transfer case...

What are you idling at? did they fix it?

 

All good thanks. I changed the Plugs and leads. It drive like a different vehile now. None of the pulling back like it used to. The Engine Check light has switched itself off as well so it must have been the slight misfire that was causing it. When i was changing the plugs i noticed that the leads were the original ones on the Disco and the plugs were the wrong ones aswell.
However, the front sunroof has now started to leak in ha ha. The joys of owning a Discovery hey

 

good to hear. check that the drains are clear. Easy fix

 

yeah first check the exit points of the drain if that doesnt work you wil have to pull the headliner to see the drain connect to the sunroof