Thanks guys I’ll get it plugged in see what’s going on thanks for your help I’m new to land rovers.
Ok so you have a dodgy Foxwell. Have you tried live data on it?

I have a Foxwell pro 520 and it has helped me out with stuff like this. Mine is set up to be able to work with the whole LR/Jaguar range.
Is yours not?
 
Our Foxwell works OK for reading live data.
Maybe it's not down on power, maybe you have massive oversized wheels and tyres and expecting too much.
Remember its not OBD2 compliant.
 
Our Foxwell works OK for reading live data.
Maybe it's not down on power, maybe you have massive oversized wheels and tyres and expecting too much.
Remember its not OBD2 compliant.
I think we need more "data" on which type of Foxwell he has. He may be able to upgrade it quite easily.
Like you I am so happy with mine that i have yet to feel the urge to get a nano.

(Mind, here in Frogland I can borrow my neghbour's! ;);). Just not needed to yet!)
 
Thinking about it, mine IS OBD2 compliant as I use it on the wife's car which is a Citroen C3 Pluriel, '04 MY.
At lest I assume it is as it works fine with that car.
 
Thinking about it, mine IS OBD2 compliant as I use it on the wife's car which is a Citroen C3 Pluriel, '04 MY.
At lest I assume it is as it works fine with that car.
Yes the Foxwell is OBD2 compliant but you need the dedicated software for it to work correctly on the TD5.
But you can also use it for obd2 compliant vehicle, if any of that makes any sense...... probably not!
 
... can a bad alternator stop the vehicle from reaching max power ...
Yes it can cos once you started it and removed the jump leads the battery voltage can drop below 10V which mixes up the ECU, injectors and sensor readings, the more the voltage drops the worst the engine will run untill it stops
I have a foxwell OBD reader and it’s not working
not working how? it doesnt react at all when you plug it in or it's giving you some communication error message? ... though as it was already clarified you must load it with the JLR software but even then you cant 100% rely on it for the engine management especially not on the fault codes
How do I update fox well to work on td5
Which modell of foxwell?, not all can accept JLR
 
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Yes it can cos once you started it and removed the jump leads the battery voltage can drop below 10V which mixes up the ECU, injectors and sensor readings, the more the voltage drops the worst the engine will run untill it stops
Didn't know that. Or rather hadn't thought about that.
Makes sense.
My bad!
 

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