Cornishdefender · Oct 4, 2024

Changed the oil and filter yesterday FL2 SD4 HSE (OMG what a pfaff getting to the filter) so today have the Reduced Engine Performance message…. I didn’t take out the section of pipe by the filter, just pushed it out of the way to manoeuvre the filter in/out, so how probable is the message to do with maybe mucking up that pipe?
We are NOT having much luck with our Landrovers at the moment- Defender is off the road waiting for garage slot (3 more weeks)
Thanks

Nodge68 · Oct 4, 2024

Run a diagnostic, the ECM will know what is causing the reduced performance issue.

Cornishdefender · Oct 4, 2024

Interestingly the message disappeared after leaving the car for a couple of hours. Started up, no message, drove 8 miles all good, then when accelerating hard up hill there was a sort of 'hesitation' and the message reappeared and stayed for the rest of the journey (8 miles).
Yes we will run a diagnostic as soon as we can get our hands on one

freelance · Oct 4, 2024

Was it a turbo pipe you disturbed by chance?

Arctic2 · Oct 4, 2024

Most likely by pushing the throttle body pipe to intercooler out of the way, you have disturbed the part that fixes to the throttle body, check to see if it's loose also at the bottom end going to intercooler.

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This hose had to be changed on mine back in 2020 due to a split you can just about make it out to the left of the name.

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Cornishdefender · Oct 5, 2024

Arctic2 said:
Most likely by pushing the throttle body pipe to intercooler out of the way, you have disturbed the part that fixes to the throttle body, check to see if it's loose also at the bottom end going to intercooler.

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This hose had to be changed on mine back in 2020 due to a split you can just about make it out to the left of the name.

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Going to have a check today

Cornishdefender · Oct 5, 2024

Had a good look around the pipes - nothing obviously loose.
Just plugged an OBD11 reader in - no codes found…. Also the engine system check is not showing the message anymore.
Don’t you just hate intermittent faults

Nodge68 · Oct 5, 2024

Cornishdefender said:
Had a good look around the pipes - nothing obviously loose.
Just plugged an OBD11 reader in - no codes found…. Also the engine system check is not showing the message anymore.
Don’t you just hate intermittent faults

Is the larger boost hose along the bottom of the rad still secured in place? I've seen it where the securing screw has been left off, which then allows the boost hose to come in contact with a drive belt pulley, resulting in a small split which will open under boost, causing an air leak, and a reduced performance condition.

Nodge68 · Oct 5, 2024

Here a couple of pictures of the boost hose with the securing band from above and below (bumper removed), but if this band isn't fitted correctly, a hole will be made in the boost hose from contact with the belt pulley

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Cornishdefender · Oct 5, 2024

Message came on again while on our way to Helston. When we got back pot the reader on and got this code.
Will check the boost hose as well thanks Nodge68

Arctic2 · Oct 6, 2024

Cornishdefender said:
Message came on again while on our way to Helston. When we got back pot the reader on and got this code.
Will check the boost hose as well thanks Nodge68

Have a read of this below, when you checked the hose did you remove it.

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If not remove and check, did mine today to take the photos, and it needed tightening because it was weeping, will check it again tomorrow after it's Sunday run before check all fluids and tyres lights etc.

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You can also remove the map sensor and see if it is clogged up, clean with contact cleaner only.

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Freel2.com - View topic - Fault code P006a - Reduced Engine Performance

www.freel2.com

Cornishdefender · Oct 6, 2024

No didn’t remove any pipes - just felt around the junction to see if obviously loose.
Will recheck and give the MAP sensor a clean.
Thanks everyone - hopefully will get this issue sorted

Cornishdefender · Oct 6, 2024

Think this might have something to do with it…

Arctic2 · Oct 6, 2024

Cornishdefender said:
Think this might have something to do with it…View attachment 327569

I would say you have found your problem.

Cornishdefender · Oct 11, 2024

Finally managed to change the hose after delays caused by Royal Mail deciding that the part I ordered should go to Leeds Mailing Centre for local delivery - bit of a long shot given I'm in West Cornwall......
Anyhoo part arrived late Thursday afternoon so the hose replacement was 1st thing on the list this morning. We elected to take the bottom end of the rigid pipe off the bottom flexible hose and then the split hose off the throttle body and remove that as a unit.
This meant we had a bit more leverage for working the hose off and putting the replacement back on.
Was prepared for it being a bit 'challenging' to get the hose/pipe apart but actually it went ok. Used a smidge of lubricant when reassembling, also marked the line up of the new hose with the rigid pipe with a white marker so we could get the orientation correct before refitting in the engine bay.
Took the FL to Falmouth and back - with a bit of an acceleration trial up the hill by Edgcumbe to put the hose assembly under pressure - and all good

Thanks for all the help and suggestions.

Arctic2 · Oct 12, 2024

Great to hear you got it sorted, and reporting back to let us know the outcome, it always helps others later on down the line. :vb-tup:

Nodge68 · Oct 13, 2024

Cornishdefender said:
Message came on again while on our way to Helston. When we got back pot the reader on and got this code.
Will check the boost hose as well thanks Nodge68

I'm a bit late to the party, as it seems you've solved the issue.
For future reference, MAP-MAF correlation issues are always due to boost being lost. Basically the MAP isn't seeing the intake pressure is should, compared to the amount of air volume the MAF is measuring.

Glad it's sorted.

WhiskyLassie · Oct 13, 2024

MOCNT 27mm Ratcheting Combination Wrench Flexible Head Ratchet Spanner Metric Rotate Spanners Tool 72 Teeth Gear Ring Wrench Set Car Repair Torque Wrenches Socket Nut Hand Tool https://amzn.eu/d/fz18ERR

Next time you decide to do it use one of these. Made my life bearable the next time I had done it

Cornishdefender · Oct 13, 2024

WhiskyLassie said:
MOCNT 27mm Ratcheting Combination Wrench Flexible Head Ratchet Spanner Metric Rotate Spanners Tool 72 Teeth Gear Ring Wrench Set Car Repair Torque Wrenches Socket Nut Hand Tool https://amzn.eu/d/fz18ERR

Next time you decide to do it use one of these. Made my life bearable the next time I had done it

Yup we bought one after it became very apparent that the filter change was 'awkward'

given most of the YouTube vids recommended one!

WhiskyLassie · Oct 13, 2024

Cornishdefender said:
Yup we bought one after it became very apparent that the filter change was 'awkward' given most of the YouTube vids recommended one!

Yea I didn't have one but somehow I had an imperial spanner that's a Rollie paper thicker than it needed to be then ordered a ratchet one.

Hopefully the link helps others that are thinking they want a go.

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