Td5 15p headache

Right the td5 struck again. Last week she was a cnut to start purged it and foot flat to floor while cranking and eventually started. Then up until today fired first turn of the key and ran as it should. Earlier whilst at some traffic lights she sounded lump as though on 4 cylinders not in a place able to stop i had to keep going. Down on power obviously down to cylinder down then it cut out. Tried to restart but had tobhave foot to floor for it to fire. It did this a few times on the way home but got me home. Any ideas what to check or swap out first

The best would be to plug in a compatible scanner to see if there are any fault codes to rule out a crank sensor or ECU failure, if you cant do that try the following
1. do this test https://www.landyzone.co.uk/land-rover/check-td5-fuel-pump-hp.358086/
2. check the ECU red plug for oil and if there is replace the injector loom

if these are ruled out the injector copper washers are suspects or who knows what, without a proper diagnosis it's just a guessing game

sierrafery said:

The best would be to plug in a compatible scanner to see if there are any fault codes to rule out a crank sensor or ECU failure, if you cant do that try the following
1. do this test https://www.landyzone.co.uk/land-rover/check-td5-fuel-pump-hp.358086/
2. check the ECU red plug for oil and if there is replace the injector loom

if these are ruled out the injector copper washers are suspects or who knows what, without a proper diagnosis it's just a guessing game

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The engine light isn't coming on bit should still store codes ? Also would fuel pump cause the misfire ? I was leaning to injector loom or crank sensor but unsure til I have a proper nosey in the daylight. Don't suppose there's a list of helpful fellas with scanners on here ? Would give a good drink for plugging in rather than a garage

Airgunner said:

The engine light isn't coming on bit should still store codes ?

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There is a huge variety of codes which would not trigger the EML as on the Td5 it comes on ONLY for crank sensor or TPS(throttle position sensor) issues...

Airgunner said:

Also would fuel pump cause the misfire ?

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i would have not mentioned it if it didnt

Top man I'll try get it plugged in today

Those were my symptons when my fuel pump went. Genuine only for replasment.

Cleaned ecu plug as a little tiny bit of oil no joy let it purge and running fine now

Even a bit of oil there means that you need a new injector loom cos the oil has bad effect at the upper plug too and if you want it to last get genuine

sierrafery said:

Even a bit of oil there means that you need a new injector loom cos the oil has bad effect at the upper plug too and if you want it to last get genuine

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There was mention in the now defunct LRO Magazine of a guy selling an upgraded loom for this, with very good feedback on it.

meego said:

There was mention in the now defunct LRO Magazine of a guy selling an upgraded loom for this, with very good feedback on it.

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I think that was the Pace 4x4 injector loom. It claims to be sealed to stop the oil going up the loom.

The genuine injector loom is no longer available from LR. I've had the Britpart AMR6103G loom for 3+ years without issue.