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dantastic

Member Since: 04 May 2010
Location: London
Posts: 367

Momentarily losing power 2.2

I have a strange issue where my 2.2 is losing power for just a fraction of a second when only lightly applying throttle. It never happens under load but only when you are frying to maintain about 60km/h on a slight decline. So just very light throttle.
It loses power for just the tinyest amount of time and then power surges with a big clunk in the drive train and back to normal. The whole process taking just a fraction of a second.
It has always done this but I think it may be getting worse. Or I'm taking more notice of it, I'm not sure which.
It doesn't matter where you get the diesel but for the record I only get diesel from reputable fuel mongers.

Any suggestions other than haul it back to the dealer?

25th Aug 2016 11:31am

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 325

Is it reproducible in these special situations, does she always do it? Do you notice black smoke from exhaust while she does it or can you check for it next time? Can you check for stored DTC's as well?

25th Aug 2016 12:51pm

dantastic

Member Since: 04 May 2010
Location: London
Posts: 367

It's easily reproducible alright. Haven't checked for black smoke but will do. As the exhaust point straight back it mightn't be easy to see unless there's a ton of smoke.
Will check if there are any codes logged as well.

25th Aug 2016 1:13pm

Rosco

Member Since: 03 Dec 2010
Location: Burntwood
Posts: 1805

2015 Defender 110 Puma 2.2 XS CSW Montalcino Red

I've got exactly the same with mine, and agree its always done it but it seems to be getting worse lately.

I've spoken with the dealer and agreed to let it develop a little further. 2007 - Stornoway Grey 90 XS SW - Gone
2002 - Black Discovery II - Gone
2014 - Montalcino Red 110 XS SW

25th Aug 2016 1:18pm

PumaPhil

Member Since: 26 Oct 2014
Location: Bridgend
Posts: 201

2015 Defender 90 Puma 2.2 HT Aintree Green

I also have exactly the same problem on a 2015 puma. Also seems to very slowly be getting worse. Interestingly, when I disconected the battery for a few hours, for the first 500 miles or so after reconnecting I didn't notice it happening. I complained about it on the first 12000 mile service and the technicians found nothing wrong, but told me they updated the software on the ecu to try and fix it. It didn't.

25th Aug 2016 11:15pm

mk1collector

Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

The mrs double cab 2015 MY does the same, I thought it was just me being used to driving the td5, I'll bring it up at the next service. Ray
My build thread
http://www.defender2.net/forum/topic17615.html

26th Aug 2016 12:00am

familymad

Member Since: 13 Dec 2011
Location: Bucks
Posts: 3463

2016 Defender 130 Puma 2.2 HCPU Santorini Black

I have exactly the symptoms on our 2012 130 2.2 and our 2016 110 2.2

Be interested if anyone gets a fix, this looks like a developing fault. 1951 80" S1 2.0
1995 110 300TDI
1995 90 300TDI

26th Aug 2016 7:41am

Marks Landy

Member Since: 09 Feb 2015
Location: Cheshire
Posts: 296

My 15MY 110 does the same thing while in 6th gear with light throttle.

The dealer said there were no fault codes stored in the ECU so I figure it's just a quirky map at low fuel demand.
Once it's out of warranty I will get it re mapped or buy heavier boots...

26th Aug 2016 3:36pm

Jukathy

Member Since: 25 Jan 2015
Location: Berlin
Posts: 170

2012 Defender 110 Puma 2.2 SW Keswick Green

Some might say : "turbo lag"

4th Sep 2016 9:14am

mk1collector

Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

It's not like turbo lag it just feels like the engine stops for a split second. Ray
My build thread
http://www.defender2.net/forum/topic17615.html

4th Sep 2016 9:20am

Jukathy

Member Since: 25 Jan 2015
Location: Berlin
Posts: 170

Yap. I feel that I could have that problem, too. In some special situations - as indicated above - my engine reacts some kind of "laggy". When power comes up again a "clonk" is quite likely ...

I've learned to avoid this lag. Everything depends on the gas pedal.

It's the variable turbocharger geometry I suppose ... folding together ...

4th Sep 2016 9:51am

Fozzauk

Member Since: 05 Feb 2014
Location: Derbyshire
Posts: 267

I have the same problem too on the 130. Be interested to know if anyone has had a dealer look into this?

14th Sep 2016 1:54pm

bm52

Member Since: 04 Apr 2010
Location: Kent
Posts: 2189

2014 Defender 110 Puma 2.2 XS CSW Havana

I think i have seen the same and thought it was a fueking issue.

Now that i either use a premium diesel or standard deisel with Millers i can't say i have noticed it for a long time.

14th Sep 2016 7:56pm

toby9946

Member Since: 23 Sep 2015
Location: Hampshire/London
Posts: 96

2015 Defender 90 Puma 2.2 Landmark LE Corris Grey

Pretty sure my 2015 does the same thing and has done since new.

I had always put it down to bad fuel mapping at that particular point in the throttle/load/fuel map.

Best description I can give is it just hesitates for a split second then jolt/clunk it catches up with itself.

Its due its first service in a couple of weeks so will mention it then, maybe they can be talked into giving me the 150PS Autobiography tune

-2015 Defender 90 XS Landmark-

14th Sep 2016 8:18pm

Fozzauk

Member Since: 05 Feb 2014
Location: Derbyshire
Posts: 267

I always put vpower diesel in the 130, so wouldn't have thought it would be that?

As toby9946 says, maybe the fuel map?

15th Sep 2016 8:49am

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