Member Since: 21 Oct 2016
Location: kent
Posts: 13571
Vibration over 55mph , fingers crossed now resolved
Hiya
So went out today down the dual carriageway , noticed over 55mph I get like an engine vibration, it then came up engine fault and Into limp mode
Pulled over turned engine off and back on again and was all ok until I hit 55 mph plus
Got home and took some fault codes , I did get it serviced a little while back and only used it around town , service consisted of genuine oil filter , , mahle fuel filter , engine oil, air filter
Egrs have been blanked for ages
Just wondering if there’s anything obvious I should look at first plse
Things I’m wondering is, if the fuel filter pipes were put on wrong could this cause the issues plus wondering why I’m not fuel rail pressure sensor readings , surely it wouldnt run if that had accidentally been left unplugged
I cleared all the faults and so far nothing has come back , just that vibration over 55mph
Many thks and as always extremely grateful
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Last edited by gstuart on 1st Oct 2022 11:06 pm. Edited 4 times in total
2nd Dec 2021 8:39 pm
davidhem
Member Since: 21 Feb 2013
Location: Kenilworth
Posts: 710
Sorry I have no idea, but I want to keep this current until someone with knowledge comes along.David
2nd Dec 2021 9:31 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
Bless u
That fuel rail pressure sensor is bugging me as if I’m reading it right the turbo actuator arm motor isn’t getting any power ???
Have got a fuel pressure gauge so can test the LPFP side which I assume will be able to tell me if the fuel filter pipes are correct , but of course am guessing there , really trust the garage that does the servicing every year for me and never had an issue
Alas I normally just use it for driving around town so to be honest going onto a dual carriageway as shown up the fault so don’t really know how long the faults been there
If it an electrical issue I’ve got multimeters etc so can bell the loom out , fingers crossed it’s something simple
Thks again
2nd Dec 2021 10:21 pm
Lumi
Member Since: 29 Oct 2021
Location: London
Posts: 55
Just man in the street here: the injectors seems to be pretty much ok, mine are a bit more even but similar, I think the fuel rail pressure can’t be zero but again I’m not expert by any means.
Why don’t you try to record few live stream showing the engine revvs and car speed and try to catch what value change when you start getting the vibration? Something odd surely is going on in the fuel pressure department, you also had a fault code for it.
I’ll have a look at the values on my car tomorrow just to have a reference.
2nd Dec 2021 11:11 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4577
Hi Gary, so you've finally broken it.
Well it looks like you're turbo actuator connection/wiring might have an issue, and it would indeed be worth checking if the fuel lines are connected correctly by the garage. Beyond that there's not much else jumping out as the injector values are all good. There is no signal for the fuel rail pressure sensor which is why you're not seeing it. Instead the fuel pressure reading is what matters and this is provided by the FRPS. There are fuses which control the VCV and the PCV so it might be worth a peek there too just in case there's any corrosion on them.
It might be better to switch your tool settings to metric measurements as most of us are now used to working this way, and it's easier to spot an issue. (well for me anyway)
Is your garage a LR indy or a Heinz 47?
Edit:
Some "live values" for you to do a comparison!! These were taken on a cold engine! I know you weren't using the car for a while so it could just be a low battery, it could also be furry gremlins paring their teeth on your wiring. Hopefully not, ping me if you need anything else
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yµ (idµ - eAµ) ψ=mψ
3rd Dec 2021 12:01 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
Thank u so much as always for the awesome help, it’s so appreciated
Who me break something , never , Will change my gap iid to metric as indeed will make life easier to compare
When I dont use the landy it’s plugged into my ctek to ensure the batteries don’t drop below 12.6 Vdc , once charged unplug it and leave it for 3-4 x weeks before it needs charging again if I don’t use it again in that time
Did do some live data but to be honest I’m not skilled enough to interpret them correctly , think though I lifted my foot off when I got the vibration , did have the fuel filter changed by the garage who works on all motors, gone to him for ages and always found him very good , hopefully I’ll be able to see the fuel filter connections from the wheel arch and don’t have to get underneath as i currently unable to crawl under the landy
Ah I see ref the fuel rail pressure sensor , so apologises for the daft question, does that mean I won’t ever see readings from this sensor plse
Thks so much once again , will have a look around on top of the engine at the connectors etc to see if there’s anything obvious
Some pics and that’s up to around 55mph , did back off as soon as it started to get the vibration
Hope this pics may be useful and will report back on what I’ve checked and if I find anything
Thks again and would be awesome to also get some more data as a comparison plse
Put ur one here Den , many thks and will also do a screen the same to see how they compare
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3rd Dec 2021 3:21 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
just looking at the data from mine when I was doing around 30-55mph is my MAP suppose to be that high in g/s readings plse
Plus if i plug in a fuel pressure gauge onto the fuel shrieder valve would that tell me if the fuel filter connections are correct plse or is the only way to physically check the hoses orientation plse
Many thks
3rd Dec 2021 3:30 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8041
ISTR Mahle D3 fuel filters have a push/stick on colour coded card on the connections, might be worthwhile checking, a mirror might help without disconnecting.
Is it possible as you only do short journeys the exhaust(catalist) needs a good long run for a burn out?It can when others can't,
It will when others won't,
It goes where others don't.
3rd Dec 2021 8:45 am
Lumi
Member Since: 29 Oct 2021
Location: London
Posts: 55
I was evidently wrong, fuel rail pressure is n/a for me also.
There are master here so I better leave it to them, sorry Gary if I misled you.
Here some value for comparison anyway.
It seems that I have something to be worried too
3rd Dec 2021 10:19 am
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4577
gstuart wrote:
just looking at the data from mine when I was doing around 30-55mph is my MAP suppose to be that high in g/s readings plse
Plus if i plug in a fuel pressure gauge onto the fuel shrieder valve would that tell me if the fuel filter connections are correct plse or is the only way to physically check the hoses orientation plse
Many thks
No the fuel pressure won't be specific enough to tell if the pipes are on incorrectly, visual as M3DPO says is the only way. As for your earlier question re the fuel rail pressure sensor, just select "Fuel Pressure" in live values as this is taken from that sensor and ignore the option called "Fuel Rail Pressure Sensor"
Have a look at "Boost Pressure Actuator" and "Boost Pressure Adjustment" Select them and post them here as I suspect your wiring/connector might be at fault. yµ (idµ - eAµ) ψ=mψ
3rd Dec 2021 11:48 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
Thanks so much , apologises for the late message , just felt worn out after going out for the day , but getting there
Ordered myself a second hand Mac laptop as my old one died on me, I can update the gap iid
Then it’s supposed to be a bit warmer on the next few days so I can get out and check that fuel filter , plus the rock sliders were fitted at the same time of the service
Fingers crossed it’s something simple as throughout the year it’s been fine
Will of course update so it can also help others
No probs ref the fuel rail pressure , it just through me when it came up NA
Thks a million as always and will let u know how I get on next week
4th Dec 2021 6:13 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
Lumi wrote:
I was evidently wrong, fuel rail pressure is n/a for me also.
There are master here so I better leave it to them, sorry Gary if I misled you.
Here some value for comparison anyway.
It seems that I have something to be worried too
Plse no probs at all, hope u don’t mind me adding that ur battery voltage is extremely low
Is bugging the hell out of me and will check the fuel filter first and go from there
Thks again
4th Dec 2021 8:20 am
MHP
Member Since: 31 Dec 2011
Location: lydd
Posts: 2776
Garry, is the judder localised to one area or does the whole car do it? Not the dreaded torque converter judder is it? 2009 Discovery 3 HSE - Gone
2019 Anniversary Edition D5 - Going
2019 HSE D5 - coming!
4th Dec 2021 8:21 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
M3DPO wrote:
ISTR Mahle D3 fuel filters have a push/stick on colour coded card on the connections, might be worthwhile checking, a mirror might help without disconnecting.
Is it possible as you only do short journeys the exhaust(catalist) needs a good long run for a burn out?
Many thks and must admit throughout the year it’s been fine , but that’s a good point ref the cat
Will get round checking the filter first and go from there on the other engine connectors
Plus wonder if a connector has been removed and caused a bad connection when reinstalled on the engine trust the mechanic who’s always been very good and maybe something has happened seeing it was driving fine and only noticed it when I drove on a dual carriageway
Will of course let u know asi go through it step by step
Thks again and very grateful
4th Dec 2021 8:26 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13571
MHP wrote:
Garry, is the judder localised to one area or does the whole car do it? Not the dreaded torque converter judder is it?
Hiya
Many thks, It feels like it’s the engine that shudders as soon as I go over 55mph , revs don’t fluctuate
It’s quite a shudder like ur driving on an uneven road as I first thought it was the road condition , then limp mode and engine error came up so pulled over , checked under the bonnet as was fearful that oil had leaked , oil light didn’t come on
Sat in the landy and it revved freely with no noises , then pulled off and drove under 50 mph u til I could get off the dual carriageway
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