Little help needed

Romas · Nov 8, 2015

hi all,

I have posted a thread in a different sub-forum and I'm not sure it was the right one. If you could please have a look and see if you could help me out I would greatly appreciate it

https://www.landyzone.co.uk/land-rover/please-help-freelander-td4.292016/

hd3 · Nov 8, 2015

the small filter: be the turbo solenoid vacuum vent ..
one side connects to the turbo vacuum solenoid
( that operates the turbo variable vane system
( see pic in 1st post here: https://www.landyzone.co.uk/land-rover/td4-lack-of-power-at-70mph-fixed.77147/
the other end is left open .. not connected to anything
that filter is usually replaced every 12k miles or once a year
if it gets clogged up .. the turbo vane system won't operate properly

the cut wiring: looks as if it Might Be the fuel rail pressure sensor wiring harness might have been replaced at some point
and that's the old harness .. that sensor's wiring was .. prone to water ingress ..
so LR sold a replacement to fix the issue

as for the starting issue .. symptoms Possibly point towards a faulty injector ..
try this : http://www.uniteddiesel.co.uk/docs/...ecking-back-leakage-1398762965-1401121695.pdf

more notes here :

td4 engine faults :
http://tuning-diesels.com/75Zt/R75faults.htm

about the 'maf' sensor :
http://tuning-diesels.com/75Zt/R75maf.htm

sorry .. can't help with the readouts ..
i'm sure 1 or 2 others here can make sense of the data

~~~~~~~~~~~~~~~~~~~~~~~~
probably best to post problems here ..
as it seems that few folks visit the engine forum

Romas · Nov 8, 2015

thanks a lot mate, after reading it all I think I might have a faulty MAF sensor, but that probably wouldn't be the reason it won't start. the main suspect at the moment I think is camshaft sensor

GrumpyGel · Nov 8, 2015

My thoughts are that if a car starts with a bump start everything is working OK - so it would start if the starter motor was to turn the engine over. What you are experiencing though goes against that! One thing I have heard of is that if the starter motor is not in "good condition" it can interfere with electrical signals - ie what the ECU (or maybe even the CCU) is receiving or sending out. Probably a bit expensive to swap out on a gamble though.

Did you clear the 1620 fault code? If you did, did it come back again after you tried to start it again?

B34R · Nov 8, 2015

On the subject of starter motors - something we found on the old Volkswagen 16v diesels (BKD and above) - past a certain euro-b***ocks level they had start conditions set. As they're not allowed to exceed certain emissions during startup.

This meant that when the starter motor was getting a little bit tired at 70+k miles it'd spin about 5rpm under the minimum zero-particulate start speed for the engine. Eventually the ECU would go oh for crying out loud and start the car because either the starter had warmed/oil was flowing and it had attained minRPM or the programming took over to stop the vehicle owner being stranded.

...but it was confusing the heck out of people because the starter motor was still spinning the engine rapidly with a good strong spin. Took months to figure it out because the starter motor would get written off as a fault and there were no codes logged for it. Aftermarket companies started rewinding the starter motors with +250/500 watt capabilities to make them last a little longer on the next go around.

I've been suspicious of start issues on diesels ever since...

Romas · Nov 8, 2015

GrumpyGel said:
Did you clear the 1620 fault code? If you did, did it come back again after you tried to start it again?

I have cleared the code but didn't have a chance to check if it has reappeared yet, will try to get my mate to come round and scan it again. Any ideas on what it could mean?

GrumpyGel · Nov 8, 2015

This page.... Reprogramming Code Learn Fault Read more at: http://www.obd-codes.com/trouble_codes/landrover/ Copyright OBD-Codes.com
recons 1620 means "Reprogramming Code Learn Fault".

Romas · Nov 8, 2015

B34R said:
On the subject of starter motors - something we found on the old Volkswagen 16v diesels (BKD and above) - past a certain euro-b***ocks level they had start conditions set. As they're not allowed to exceed certain emissions during startup.

This meant that when the starter motor was getting a little bit tired at 70+k miles it'd spin about 5rpm under the minimum zero-particulate start speed for the engine. Eventually the ECU would go oh for crying out loud and start the car because either the starter had warmed/oil was flowing and it had attained minRPM or the programming took over to stop the vehicle owner being stranded.

...but it was confusing the heck out of people because the starter motor was still spinning the engine rapidly with a good strong spin. Took months to figure it out because the starter motor would get written off as a fault and there were no codes logged for it. Aftermarket companies started rewinding the starter motors with +250/500 watt capabilities to make them last a little longer on the next go around.

I've been suspicious of start issues on diesels ever since...

GrumpyGel said:
This page.... Reprogramming Code Learn Fault Read more at: http://www.obd-codes.com/trouble_codes/landrover/ Copyright OBD-Codes.com
recons 1620 means "Reprogramming Code Learn Fault".

Yeah, but what does that mean?

and what could have caused it? Sorry for being silly but it doesn't make it any clearer for me...

Romas · Nov 8, 2015

B34R said:
On the subject of starter motors - something we found on the old Volkswagen 16v diesels (BKD and above) - past a certain euro-b***ocks level they had start conditions set. As they're not allowed to exceed certain emissions during startup.

This meant that when the starter motor was getting a little bit tired at 70+k miles it'd spin about 5rpm under the minimum zero-particulate start speed for the engine. Eventually the ECU would go oh for crying out loud and start the car because either the starter had warmed/oil was flowing and it had attained minRPM or the programming took over to stop the vehicle owner being stranded.

...but it was confusing the heck out of people because the starter motor was still spinning the engine rapidly with a good strong spin. Took months to figure it out because the starter motor would get written off as a fault and there were no codes logged for it. Aftermarket companies started rewinding the starter motors with +250/500 watt capabilities to make them last a little longer on the next go around.

I've been suspicious of start issues on diesels ever since...

That's an interesting theory B34R

Little help needed

Romas

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hd3

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Romas

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GrumpyGel

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B34R

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Romas

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GrumpyGel

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Romas

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