TD5 issues after remap

Thing is, l have no symptoms of injector issues.
Engine starts fine, runs fine (when in standard tune), good economy, rock steady tickover, no diesel in the oil, etc.
I will probably leave it for now. I will however do as suggested and see if l can get the injectors checked.
Although it's been to LR this week and l presume they will have done a diagnostic on it.
Also both remapping companies checked it and said it was OK.

lightning said:

Thing is, l have no symptoms of injector issues.
Engine starts fine, runs fine (when in standard tune), good economy, rock steady tickover, no diesel in the oil, etc.
I will probably leave it for now. I will however do as suggested and see if l can get the injectors checked.
Although it's been to LR this week and l presume they will have done a diagnostic on it.
Also both remapping companies checked it and said it was OK.

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Contact Disco1BFG,he lives in Buxton,he might give you some help regarding the injectors.

I hear you, but the Defender is now running like a swiss watch and l am not sure l should start messing with it.
If the guy tells me the injectors are out of tolerance then what am l going to do with it?
If l start pulling injectors l could end up with more problems where l now have none.
Except that it doesn't want to run properly after being remapped.
Some would be fine with the minor running issues l was getting and consider it was worth it to get the extra performance.

lightning said:

I hear you, but the Defender is now running like a switch watch and l am not sure l should start messing with it.
If the guy tells me the injectors are out of tolerance then what am l going to do with it?
If l start pulling injectors l could end up with more problems where l now have none.
Except that it doesn't want to run properly after being remapped.
Some would be fine with the minor running issues l was getting and consider it was worth it to get the extra performance.

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Ok,but the extra power after a Dynachip re map,is amazing,if you are not happy with it after Mike has done it,he will return too your original map.

The last remap was done by a very well regarded company.
The guy who came had to adjust it twice to reduce the smoke then return again as it was still smoking under load at low RPM.

I'm sure it's something to do with my Defender as nobody else has had any issues whatsoever with this company (or another well known/regarded company who did the first remap after which it produced enough white smoke under acceleration to rival an SAS smoke grenade)

So l'm not calling him back again l think he did his best with it and it was nearly there but l haven't the heart to call again.

Having spent a total of nearly £1,000 trying to get it sorted l'm just going to have to put up with going a bit slower on hills.

Ok,but if it was my TD5,i would want to get too the source of the problem,but it is your vehicle,your choice mate.

I will get it looked at eventually as l am the same as you in that respect.
But as l said, it is running perfectly in standard tune and l am currently the best part of £1,000 down with nothing to show for it.
So what l don't want (at the moment) is to be told that l need two new injectors.
And then, knowing my luck, they pull the injectors and find a cracked seat, the new injector won't seal, and l need a replacement cylinder head (plus the new injectors)....another £1,000+ that l currently don't have.

lightning said:

Well, my Defender now runs great, after being reset by LR!
I think it just doesn't like being remapped! The turbo is fine, the MAF has been replaced, EGR removed and Decat, AAP sensor cleaned, intercooler removed and cleaned etc.
I think maybe the injectors are the issue, everything else has been checked and nobody else has had the problems l've had.
Fortunately it performs well in standard tune. As l think l will give up on it now having spent nearly £1,000 in total over the last 12 months.

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well IMO you should have tried to diagnose the thing better before getting rid of a presumably good remap which you paid for cos just cleaning sensors would not fix an issue if there is one, you didn mention anyting about MAP/IAT sensor which is important as well and the only relevant diagnostic in these fault codeless running issues on more power is a live data log which covers the problematic moment too cos if a sensor is reading within limits but not accurate it will not throw a fault code nor if there's some fuel supply issue which can be caused by the FPR(even without leak) or the straier under it, also after(or before) a remap the in jector cleareances should have been set 100% and a new depression controll valve fitted if the other is older than 30K miles cos even if it works it can be "lazy" then under load the cranckase gasses will be excessive "bypassing" the clean air flow at certain revs also the depression in the cranckase might cause slight running issues. In a nutshell: i doubt that the remap was the problem and from how the diagnose was made by missing important things IMO it's early to blame the injectors

Thats a fair point. I swapped the depression control valve recently on mine and it was noticably better. On the FPR surely you would notice fuel leaking round the back on the engine? Mine was only just leaking but still noticable.

Though I remember the OP saying he cleaned the MAP, could be a little starved of air? Even if you dont plan on mapping it again soon everything mentioned is still worth checking.

I think you can test the injectors individually via a nanocom, so no need to remove them.

I've done all the things you suggest.....and before l got any remap done.
The reason being when l got it, there seemed to be excessive exhaust fumes coming into the cab.
This seemed to clear up after the CAT replecement pipe was fitted

The depression control valve is new, the FPR is new, it's got a new MAF unit, the sensor on the inlet manifold has been cleaned, the sensor on air intake has been checked.
It's had EGR delete/CAT replacement pipe (the proper kit for the EGR not just a blanking plate!)
The ECU has been checked for oil and the injector harness has been replaced (there was oil at the ECU plug)
I have also removed and checked/cleaned out the intercooler.
It's been into LR and my local Indy, and neither could find any problems, although as l said nobody wanted to touch the injectors.
The Defender as l said previously runs fine until remapped.
I have just driven to Yorkshire over the M62 towing a trailer and while it is slower, it runs much smoother without the hammering noise from tbe engine at 2500-3000rpm that l started this thread with.
It's a shame really as l'd like the extra performance.

lightning said:

.......the sensor on the inlet manifold has been cleaned.....

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IMO you are not listening m8, what was the reading of it after you cleaned it.... cleaning a sensor is not something to give you the certainity of it's perfect behaviour, i say again, only a live data log which covers the problematic episode is relevant

Would that not come up if it was faulty if it was put on the diagnostic tester at the LR dealer?
They gave me a comprehensive printout of all the engine readings including the fact that the MAF was defective?
And if that sensor was faulty or out of tolerance would the Defender still run perfectly?
Might be better for me to just fit a new one if you think it may be where the problem is.

There are many guys in UK with nanocom which can record live data logs, without that it's a guessing game, only reding fault codes or stationary live data like a dealer does is irrelevant, find somebody near you with nanocom up to help and record a log then i'll check it and speak with full info in hand, check this out: https://www.google.com/maps/d/viewer?hl=en&oe=UTF8&msa=0&ie=UTF8&mid=1PmbphOvO47RAsn1ZdQFDD-ed-zo but you'll have to register to that forum to be able to give a PM or find out contact details

An update on this.

I have done two long motorway journeys up to Scotland this Summer, one of 430 miles and one of 240 miles.
After this the engine ran smoother particularly at 2500-3000rpm where l was having issues before.
So last week l got the remap re-installed and it's absolutely fine now at all RPM.

Why this is l don't know, but l am not complaining.

Was it the same remap from the same company as before? Or did you try a different one?

I'm pleased it's better this time around, because your tales of smoke were one of the things putting me off getting one for mine. It would just be my luck if a remap made me disappear in a cloud of smoke. But at least this shows it doesn't have to be a problem forever.

My TD5 did not like the Alive remap, but l found nobody else who had problems (with Alive remaps) so it must be just my Landy.
The second remap was done by Dynachip, Mike really knows his stuff, he did the remap then we went out in the vehicle, he had to adjust it a couple of times but then it was OK.
As in no smoke etc.
It's generally better to drive with more torque, fuel consumption is the same, but it pulls better up hills and away from roundabouts.
There are no downsides, normal driving and low range driving are no different, but if you press the gas pedal a bit more you get stronger acceleration, and no need to change down for hills.
I called my insurance to report a remap and it made no difference to the price!
So all good.

Glad you finally got it sorted!

I went to my local dealers this morning to book a "Pcm" software update... But unfortunately they no longer have the software for td5 cryyy!

Whats a "Pcm" software update?

Cheers

It's normal that they dont have it, what's strange is that they NO LONGER have it as there was no such thing ever for the Td5...the software update is something specific for OBDII compliant vehicles, stared with D3s