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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Puma 2.4 power loss 07 47k
Hi all,

A little help please. I know this issue is covered alot but have tried all the possible solves with no avail.

Had an issue for a few months now. When in 6th on motorway around 70mph, feels like I loss the turbo. And wont rev over 2500rpm till I restart the car then all fine. This happens 3-4 times till the dash light comes on and I get a maf error code and a turbo overboost code.

To try to solve have done the following,

1. New Maf sensor
2. New map sensor
3. New egr valve
4. Silicone intercooler hoses
5. Check turbo actuator seems fine
6. Service bulletin regarding longer turbo harness
7. New turbo actuator rod
8. New fuel filter

I have a new vcv and pressure relief valve which will fit this week due to having slightly rough idle on the cold mornings.

After this out of ideas Sad love the landy but this issue is getting worse. Want to get a remap done but need to get this issue sorted first...

Any help please

Have a pic taken from the obd reader of engine state when fault appeared. P.s the faults i get are p1103 and p0234

Thanks in advance
Post #684068 4th Feb 2018 4:56pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20304

United Kingdom 
Don't quote me exactly but I think the MAF code you have is a nuisance.
Often caused by the EGR, despite the new EGR it could already be caked up.

Around 2.5k rpm sounds like the EGR sticking open, or at least being sticky.

It's known to create other diagnostic codes also to appear related to another.

There is also injector performance also to consider.

Have you tried Millers diesel fuel additive? Give that a go and see how that goes, and if there is a difference.
I run this all th time. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️
Post #684107 4th Feb 2018 5:56pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Thanks Steve,

The new egr is less than a month old.

I have resently change the injector seals and copper washers. This had improved the engine running around town etc.

Have not tried millers. Have used the redex one a couple of tanks ago with no different results
Post #684114 4th Feb 2018 6:08pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20304

United Kingdom 
I would give it a go, if nothing else you'll get a little better power.
Smoother idle, and will clean things though including the injectors.

Nothing to lose for the cost.

I take it the air filter is in good condition, not damp or overly soiled? (I am sure you've checked anyway).

I changed EGR myself, and I had issues with it again just 5 or 6 months later.
I was so annoyed I got a tune, I was very glad I did for multiple reasons and cured the issue.

As you found changing the injector washers seemed to improve things, I would hazard a guess that the issue may be related.
The Turbo code could well be thrown out of parameters electronically expected, generally causing poor driving characteristics.

I would try the additive, and just see how that goes first.
After that, I'd consider inspecting to getting the injectors tested as a possibity.

It has been known for a single injector to be at fault before, and DTC's don't always show up in all cases dependant on the problem concerned. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️
Post #684121 4th Feb 2018 6:20pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Will give it a go steve found the following online;

Millers diesel injector cleaner fuel performance additive treatment online. Its a single shot for 60litres.

This the one?
Post #684124 4th Feb 2018 6:25pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20304

United Kingdom 
https://www.opieoils.co.uk/pv-67611-miller...gKHpvD_BwE

Club discount for D2 members and the discount code is: 'DEF2'.

Thumbs Up ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️
Post #684130 4th Feb 2018 6:45pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Cheers Steve,

Will give it ago.
Post #684148 4th Feb 2018 7:43pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
The one shot Comma one is pretty good too. Halfords do it for about £6
Post #684151 4th Feb 2018 7:46pm
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agentmulder



Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Kuwait 
I got a similar combo of fault codes when one of the MAF connector pins had been pushed out of its seating thereby making the 'IAT1' (ambient intake temperature sensor in the MAF) not read properly. Perhaps not relevant to you as I didn't experience any noticeable loss of power, however with no proper input the ECU defaulted to temps that were deep in the negatives, which couldn't have been helpful as it was high summer at the time.

Anyway, as it'll only take 2 minutes I suggest having a look at the MAF's connector (the male part on the loom) and making sure the pins are still proud and shiny. Solved the bowel problem, working on the consonants...
Post #684166 4th Feb 2018 8:25pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Thanks for the advice will have a look.

Sure i looked into this before and all was okay.

The air intake temperature was reading 11degrees, this was taken from the fault code reader.
Post #684170 4th Feb 2018 8:30pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Think its fixed!

Just changed the vcv and running much better.

Nice idle and no power loss on a short journey.

Need to do the pump relearn, how quickly do i need to get that done? A friends snapon device did not have the option.

Feels like just unleashed some lost horses!!
Post #684530 6th Feb 2018 3:55pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
great news Thumbs Up

sooner you can get that remap and egr shut the better so far as I'm concerned.
Post #684536 6th Feb 2018 4:01pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Agree caterham Very Happy
Post #684542 6th Feb 2018 4:20pm
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Bubba110



Member Since: 22 Dec 2017
Location: Bournemouth
Posts: 9

United Kingdom 2007 Defender 110 Puma 2.4 CSW Tonga Green
Thought it was fixed Sad

Pete at BAS believes it could be a sticky turbo when getting hot.

Does anyone know my options can this be cleaned? Carbon clean work?

Or replacement turbo.

Car running sweet now just get a turbo overboost error on long journeys
Post #684809 7th Feb 2018 6:51pm
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AndyS



Member Since: 18 Aug 2012
Location: London
Posts: 595

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Sumatra Black
I'd try the 'speed' on a motorway option, just because it's free and it might work. I've never had an engine that doesn't appreciate a bit of effort now and then.
Post #684852 7th Feb 2018 8:39pm
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