engine management light

hello landy lads i have a problem before i did injector seals my light came on occasionaly by switching on and off 3 times without letting engine stop put it out ,egr valve sticking i think any way i did injector seals and light never came on for 2 months until during haymaking i let someone drive it collecting odd bales onto trailer in field while i was on tractor i put the landy in low range and told them only to use second gear well during the day light came on and i cant get it to go off ive disconnected the battery and joined leads together still light remains on , one thing happened when i drove landy after when i turned there was a clunk like diff coming out when i turned i dont know if they messed with things drives ok but light still on i suppose i will have to go to garage and have it scanned or has anyone got any ideas

An ODB scanner is the best way forward as then you will know what fault is ....

You don't say what model you've got, but I'm guessing it's a TD5 - judging by the 'injector seals' comment.

A great many things can cause the yellow engine light to come on. I've had it with an ECU fault, a failed MAF, a fault in the wiring loom between the accelerator pedal (or 'driver demand' as Land Rover call it) and the ECU, oil in the injector loom, and probably a few other things that I've forgotten. The clunk is pretty standard for these things - especially on drive take up. It can indicate something obvious like a loose universal joint on a propshaft (so worth having a look and a wobble) but often it's just rotational slack in the system. I find just being gentle with the cutch is enough, and occasionally replace my drive flanges which cuts it down a bit. On the other hand if it's specific to when you're turning it could indicate wear in the CV joints in the front axle. I tend to find a flat area like an empty car park and drive in a sort of figure eight shape. A bit like the young kids drifting. A worn CV often shows up as a clunking or clicking noise.

Thank you for the reply I recently done ujs and swivel joints bearings and discs etc i think the clunk was it was i bit in diff lock but not in firm it hasnt done it since engine light is egr sticking so I’ve ordered a scanner ha that will be an education

Yup, it's very difficult living with a TD5 without a diagnostic kit. As I'm sure you know, the TD5 isn't entirely OBD compliant, so there's a limited choice of diagnostic devices available. I've found the Nanocom very useful and carry it in the tool box in the car. I've tried the Britpart Lynx too, which has a nicer interface because it runs on a PC so you can actually tell the difference between 1, i and L. But my impression was that the Nanocom will do more activities.