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rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

2011 Defender 110 Puma 2.4 CSW Stornoway Grey

Injector timing adjustment (near Worcester ?)

In an attempt to cure my intermittent 'pinking' rattle I have had excellent advice from you guys.

Fuel wise it makes no difference whether I use cheap or premium fuel with or without 2 stroke. Power and mpg are not lacking and I've changed fuel and air filter recently. The EGR is fine with nice quiet 'chukkas'. Its had four oil+filter changes in 26k km. But on long journeys I still get this annoying rattly pinking sound on moderate acceleration.

On Lorryman's advice I was at the dealer today for an injector learn and a pilot correction relearn. According to the dealer the 16 digit hex code was correctly assigned to the EMS and there was no evidence of fuel rail pressure being too high. They talked about running it through various 'cycles' on their diagnostics. They said its spot on and runs beautifully. But of course on the way home it was exactly the same !

This leaves one thing. I'm convinced the injector timing is slightly out and I want to adjust it a bit as others here have done. In July we're going to Malvern, Worces. again for two weeks on hols (long story). I'd love to get Alive or BAS to do this adjustment but York and Grimsby is too far really. But I will if I have to !

Does anyone know if there's any good LR tuning specialists within an hour of Malvern, say B'ham or Oxford for instance ?
Thanks !

5th Apr 2013 4:19pm

Porny
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Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 809

Did the dealer do everything in the correct order?

Injection pump learn/re calibration
Injector Numbers
Injector Piolt learn (this must be done last)

I would not change the timing from standard - and in my opinion, although I'm sure tuners will try and dissagree - you should not (and in fact there should be no need) to have the timing adjusted.

Engine timing is critical, and Land Rover spend millions developing and mapping the optimum timing (and there is more than just one map that most people adjust). But apparently people tweaking in a workshop can make it better??? The fuel system, set up and control is critical to the running of a Puma Engine. And any tweaks to Pulse width or timing on a Torque based strategy is wrong.

More often than not, issues like this can actually be down to injectors themselves, with a fault that only shows up under a certain load/condition.

Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316

5th Apr 2013 4:34pm

rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

thanks Porny
Actually the dealer said they hadn't done a relearn before so the info in your post makes me suspicious. I see you're in Sutton Coldfield and looking at your tuning credentials is this something you would be interested in checking out ? I don't want 500nm though !

I just want to get a diagnosis from someone who knows this kind of stuff inside out which you obviously do . I can always phone IRB and book it in nearer to July if thats OK.

5th Apr 2013 5:04pm

Caterham

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

2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey

Rossy,

as mentioned on other posts I couldn't recommend enough that you pull the MAP (and MAF) sensor(s) out and give em a clean with carb cleaner. for the sake of 2 mins its a no brainer in my opinion.

6th Apr 2013 9:11am

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey

Re: Injector timing adjustment (near Worcester ?)

rossy wrote:
Does anyone know if there's any good LR tuning specialists within an hour of Malvern, say B'ham or Oxford for instance ? Thanks !

If you're in a fix go here, they are an excellent independant with a great reputation! They will sort you out! I still use them on occasion and they're two hours from me! Ask to speak to Steve and explain your problem. They have sorted another couple of people out in a 'fix' last minute if you read the feedback.....

http://www.james-french.co.uk/

Dealer feedback....

http://www.defender2.net/forum/topic2222.h...mes+french If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

6th Apr 2013 9:15am

keith

Member Since: 15 Aug 2012
Location: Edinburgh
Posts: 2212

I also had exactly same heavy pinking issues . Whilst getting the turbo hose replaced after the recall I told them to upload the 2013 software . Bingo - no more pinking issues . Same silly rev probs and gear changes but much smoother . Can't wait to get to BAS though .

6th Apr 2013 9:32am

rossy

Member Since: 29 Nov 2010
Location: Co. Roscommon
Posts: 1296

Caterham - thanks I'll do that.

K9f - I'll give those guys a look in they sound great (and they look a bit posh !)

Keith - yours is a 2.2 I think. I asked the dealer the other day and they said there were no software upgrades for a MY11 2.4 on the system so I'm guessing the 2.2 has already needed one !

6th Apr 2013 8:30pm

keith

Member Since: 15 Aug 2012
Location: Edinburgh
Posts: 2212

rossy wrote:
Caterham - thanks I'll do that.

K9f - I'll give those guys a look in they sound great (and they look a bit posh !)

Keith - yours is a 2.2 I think. I asked the dealer the other day and they said there were no software upgrades for a MY11 2.4 on the system so I'm guessing the 2.2 has already needed one !

Yes I'm a 2.2 for my sins . Good luck with your repairs .

6th Apr 2013 9:02pm

Jc700

Member Since: 02 Dec 2023
Location: Islamabad
Posts: 1

2015 Defender 90 Puma 2.4 HT Zermatt Silver

Hello There Rossy,
I am currently facing the same problem with my defender. Did you manage to fix this issue? If yes, can you please share how you went about fixing it.

2nd Dec 2023 5:35pm

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