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clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

2007 Defender 90 Puma 2.4 HT Zambezi Silver

Intermittent Limp mode - 2.4 TdCi

Every 250 miles or so my 2007 90 2.4 pops the engine light on and the truck loses power going in to limp mode. This always happens when pressing the accelerator down hard for more power and only in 6th gear. After coasting to a halt and switching off the ignition it will restart and rev normally but the engine light remains on and further heavy use of the accelerator triggers limp mode.

Once home I can clear the fault code P1216 and normal performance is restored for approx 250 miles.

The DTC code indicates Pedal position sensor circuit high.

Has anyone else experienced this fault? Any ideas on how to fix at home appreciated.

16th Apr 2015 7:18pm

Cheshire110

Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2760

have you replaced the fuel filter recently? I had weird limp mode and sporadic fault codes when mine needed changing as short on fuel every so often when it got a bit blocked, particularly high gears up hills when flat out Cheers, David
Land Rovers of all shapes S3 onwardsâ€¦ Daily is a 110 V8.

16th Apr 2015 10:13pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17448

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

My first suspicion for a malfunction caused by pressing hard on the accelerator, supported by the P1216 code, would be a faulty throttle position sensor. I suggest replacing the throttle pedal assembly.

16th Apr 2015 10:58pm

Davefarmer

Member Since: 29 Dec 2014
Location: Norfolk
Posts: 19

2007 Defender 90 Puma 2.4 HT Bonatti Grey

my 07 2.4 has just done the exact same thing.

about month go it had exact same symptoms give it some revs went into limp mode, with me always happened on round abouts or slip roads in traffic where you need to look lively.

should also mention the fuel economy had dropped right of

it went to main dealer where they diagnosed faulty injectors and one transit injector so they replaced all the injectors £££££££££££££££ and ££££££££££££££

fuel economy back to normal went like total rocket ship very happy

now done about 500/800 miles

but today the old problem of giving it some revs up to 3k kils it puts it into limp mode, turn the ignition of engine is back but with light on few key cycles later the light goes out.

I will mention throttle pedal see what the garage say

but there is now another electrical issue that may or may not be connected

left it un locked in the yard wernt back to it and everything I mean everything was dead. nothing no ignition lights no radio no interior lights clock had stopped nothing stone cold dead.

checked the battery all ok putting out 12.4volts

I removed the earthclamp no spark or the usual little crack as you remove the clamp

tapped the clamp on the earth terminal of the battery few times then as if by magic it all came to life again, tightened up the clamp turned the key all normal again

wether the engine fault and being dead fault are connected im still to find out

20th Apr 2015 6:04pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20447

Dave, I've had that before.
Loosen the earth clamp a bit, give the battery post a few bangs to slightly flatten it. (I mean slightly)

Then tighten the clamp up and that should give a good tight fit with less resistance.

All your problems are down to this and whilst driving most likely.

20th Apr 2015 8:19pm

Davefarmer

Member Since: 29 Dec 2014
Location: Norfolk
Posts: 19

ahhh top job steve thank you

so good thwap with lump hammer you say?? lol

will investigate further with brew in hand and hammer in the other!

20th Apr 2015 9:14pm

clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

davidwhittaker wrote:
have you replaced the fuel filter recently? I had weird limp mode and sporadic fault codes when mine needed changing as short on fuel every so often when it got a bit blocked, particularly high gears up hills when flat out

Thanks David. The fuel filter is less than 1 year old and about 4000 miles. Good point though and might be worth changing before shelling out on a replacement throttle pedal assembly.

21st Apr 2015 5:39pm

clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

blackwolf wrote:
My first suspicion for a malfunction caused by pressing hard on the accelerator, supported by the P1216 code, would be a faulty throttle position sensor. I suggest replacing the throttle pedal assembly.

Thanks Blackwolf.

21st Apr 2015 5:41pm

clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

Davefarmer wrote:
my 07 2.4 has just done the exact same thing.

about month go it had exact same symptoms give it some revs went into limp mode, with me always happened on round abouts or slip roads in traffic where you need to look lively.

should also mention the fuel economy had dropped right of

it went to main dealer where they diagnosed faulty injectors and one transit injector so they replaced all the injectors £££££££££££££££ and ££££££££££££££

fuel economy back to normal went like total rocket ship very happy

now done about 500/800 miles

but today the old problem of giving it some revs up to 3k kils it puts it into limp mode, turn the ignition of engine is back but with light on few key cycles later the light goes out.

I will mention throttle pedal see what the garage say

but there is now another electrical issue that may or may not be connected

left it un locked in the yard wernt back to it and everything I mean everything was dead. nothing no ignition lights no radio no interior lights clock had stopped nothing stone cold dead.

checked the battery all ok putting out 12.4volts

I removed the earthclamp no spark or the usual little crack as you remove the clamp

tapped the clamp on the earth terminal of the battery few times then as if by magic it all came to life again, tightened up the clamp turned the key all normal again

wether the engine fault and being dead fault are connected im still to find out

Hi Davefarmer. Thanks for sharing your experiences. You've had some expense there. Part of my reluctance in ripping out and changing my throttle assembly is that with the Defender (and any vehicle I guess but my Defender does seem to suffer more than other cars I've owned) there can be multiple issues as you have described.

As a precaution I'm going to check my battery earth.

By the way if you don't mind sharing the information, how much did it cost to have your injectors replaced?

21st Apr 2015 5:46pm

clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

Thanks for the earthing tip CustomSteve. I'm going to apply your suggested fix.

21st Apr 2015 5:48pm

The Anti Christ

Member Since: 24 Feb 2022
Location: Kingston
Posts: 26

2009 Defender 110 Puma 2.4 SW Santorini Black

Davefarmer wrote:
ahhh top job steve thank you

so good thwap with lump hammer you say?? lol

will investigate further with brew in hand and hammer in the other!

Any resolution?

Been having the same issue with going into limp mode but only when going up a specific stretch of inclined highway at 100km or so in 4th or 5th.

Otherwise runs perfectly. Just fix it before your friends find out it broke again - Landy Life Forever!

Last edited by The Anti Christ on 9th Oct 2023 3:14pm. Edited 1 time in total

9th Oct 2023 9:17am

clifflandy

Member Since: 13 Mar 2014
Location: Lichfield
Posts: 109

My fault was fuel injector blow by. Resolved by removing and re-seating the injectors.

9th Oct 2023 3:06pm

The Anti Christ

Member Since: 24 Feb 2022
Location: Kingston
Posts: 26

Cheers Cliff! Just fix it before your friends find out it broke again - Landy Life Forever!

9th Oct 2023 3:21pm

Daysleepers

Member Since: 15 Dec 2022
Location: Suffolk
Posts: 111

2007 Defender 110 Puma 2.4 DCPU Keswick Green

I had a similar issue and it was a split boost pipe.

9th Oct 2023 3:36pm

The Anti Christ

Member Since: 24 Feb 2022
Location: Kingston
Posts: 26

Had that happen too.

Would recommend anyone with a PUMA to switch the intercooler inlet hose with a silicon one as soon as possible.

On that occassion, the hose split and caused the van to go into limp while driving along on a highway. No special demand or incline. Was able to trundle along at about 30 Km/h to get to my desination and back.

However the problem that i'm refering to here is where under climbing conditions on a motorway doing about 100 Km/h in 5th or 6th, the van slowly loses power and become unresponsive to the any input from the accelerator.

Also noticed in this instance that the temperature needle momentarily spiked to the HOT position and then immediately came back down to COOL after going limp.

The van did not require turning key on then off or any kind of restart.

Merely picked back up seconds later as soon as the needle came down.

Continued the trip perefectly fine after that.

The whole thing lasted about 15 seconds.

Been happeneing for years... always on one particular stretch of highway...always in the same pattern.

Tempted to chalk up to my bad handling; over demanding in high gear while on an incline?

Even though the incline in this instance was quite moderate, but long. Just fix it before your friends find out it broke again - Landy Life Forever!

9th Oct 2023 7:21pm

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