Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
Mystery black box
I have just found this black box floating around the engine bay. It seems to be plugged into the wiring on the back of a sensor on the fuel rail. Any ideas.
It's on a disco 3 2.7 which I have just bought for peanuts. But it does have issues.
So far I have broken to the tailgate and replaced actuator. Fixed the black smoke with a new IC hose.
I still have a engine that sometimes goes into limp mode on acceleration, which causes rough ideal and poor start and car sound like a tractor.
First thought is a crankshaft sensor but that looks like a lot of hard work if it's not.
Any ideas.
13th Sep 2019 5:44 pm
kajtzu
Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6570
Some kind of tuning kit?
13th Sep 2019 5:47 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72785
A jpg image paints a thousand words.
Rough idle on start could be worn out injectors. Balance figures needed via a suitable widget. Fault codes also need read re limp mode, otherwise it’s all just expensive guess work.
13th Sep 2019 5:49 pm
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
I am waiting for a new cable for my Nanocom to read the fault codes.
That it might be a chip box.
13th Sep 2019 6:10 pm
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
Must say it runs perfect most of the time.
13th Sep 2019 6:11 pm
geoffsnook
Member Since: 13 Jun 2014
Location: south wales
Posts: 3169
That sounds like a tuning box remove it and see the difference Discovery 3 se gone
Range rover sport supercharged here:)
13th Sep 2019 7:03 pm
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
Will give a go in the morning
13th Sep 2019 7:26 pm
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
Plugged cheap reader in today and no fault codes
14th Sep 2019 10:47 am
Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
Cheap readers won't access what you're after on the Discovery.
You'll need one that is known to work on L319 ( D3/4 ) otherwise, you're wasting your time.Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
I'm not scared, I'm outta here.
14th Sep 2019 11:29 am
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
I have a nanocom but just waiting for the correct lead to turn up
How about up-loading a couple of photographs of the Mystery black box ?
We might then be able to help.
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
If its connected to the fuel sensor its a tuning box. They are a waste of time and can damage your engine, it needs to be removed and binned. If you want tuning get a proper remap on it.
Flack
14th Sep 2019 1:36 pm
Paulstanbrook
Member Since: 13 Sep 2019
Location: Herefordshire
Posts: 14
It's coming of pics attached.
14th Sep 2019 2:35 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72785
Could we also have a photograph of the other side please?
I fear it looks very much like a tuning box.
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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