Discovery 3 TDV6 Limp mode

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Originally Posted by Bulletman

You may have tried these but years ago I had random faults that drove me mad, I just cant remember if the codes were what you have.. but anyway my issues were a faulty battery that showed good voltage but once put on a load tester the battery was dodgy, which in the end was a fault with the actual terminal in the battery.
Another set of faults that were real random turned out to be a bad earth connection on the 2 studs on the inner guard just in front of the start battery , they have 2 thin wires going to them .. 1 to each stud. If I remember correctly those faults were something like lost data to transmission or something like that.

Bulletman

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Thanks, I’ll do a battery load test and see if it is any good. The other earth points you talk about I have removed and cleaned them..
I’m sure it’s something simple causing it and definitely electrical given the intermittent nature

There are also chassis earth points behind the front wheel arch plastic covers to check. In European and USA these suffer from corrosion and failure. One is the starter motor earth I think.

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Originally Posted by PerthDisco

There are also chassis earth points behind the front wheel arch plastic covers to check. In European and USA these suffer from corrosion and failure. One is the starter motor earth I think.

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Thanks, if that’s the ones behind the right hand front plastic cover I’ve done that and it was all clean and good also

My 2c,

During my manifold change out, I incurred lots of problems that were non explainable with logic. One of them was fuel pressure, I had a drama with the plug.. So I cut it off and put a new one on the harness.. No good. I then started testing the sensor with jump wires and the sensor data was wrong. I put a new sensor on and life's been good so far.

The fact you had a error for wrong data in the first instance to me says the car was able to pick up error.. I would change it first and go from there. If it's not reading right. It'll try and put the new pump under extra stress.

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Originally Posted by josh.huber

My 2c,

During my manifold change out, I incurred lots of problems that were non explainable with logic. One of them was fuel pressure, I had a drama with the plug.. So I cut it off and put a new one on the harness.. No good. I then started testing the sensor with jump wires and the sensor data was wrong. I put a new sensor on and life's been good so far.

The fact you had a error for wrong data in the first instance to me says the car was able to pick up error.. I would change it first and go from there. If it's not reading right. It'll try and put the new pump under extra stress.

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Thanks for the information, I’ll look into replacing the sensor..