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Cranks, No start P0191-23. Help needed
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annette
 


Member Since: 16 Dec 2017
Location: Tilarán
Posts: 66

Costa Rica 
Cranks, No start P0191-23. Help needed

I had posted this in rangerovers.net but was told off because it is a diesel. Well it is a glorified Disco 3 with less space inside Very Happy

Sorry to bother you instead, I can't make any sense of this one
This is a 2009 TDV6 from Panamá.

it came in with a sticky injector after it failed various times on the road, so I went to pick it up by road with the boss. In the cool night in went ok, just a bit lumpy. There were loads of errors, amongst others a sick injector which showed in live values.
all 6 were serviced, one had to be replaced.

I have done the 20x bleeding.
there is diesel coming at the ramp.

But the engine will crank and crank and crank and won't start. Regarding alarm, there is a horn relay error , which I just learned came from a damaged horn. Somehow I don't think this would immobilise the engine or does it?

The only engine related error I get is P0191-23, my IIDtool zaps it but it comes back after every attempt to start.
IID Tools says the fuel rail pressure signal stays too low.

I had only once another error P0001-13 which IID tool lists as unknown.

after bleeding 20 minutes (ignition on off etc 30secs each time)there seemed to be more pressure at the bleed valve.

VCV and PCV work WHILE cranking, but there is zero pressure reported

thank you in advance for any intelligent ideas
 Fixing LR problems very far from Solihull.
That's why my newest car is a 1999 Disco 2 V8 with 285.000 miles

The problem is the missing documentation, not the LR 
 
Post #203073521st Feb 2019 2:23 pm
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annette
 


Member Since: 16 Dec 2017
Location: Tilarán
Posts: 66

Costa Rica 
the codes...

here are the codes. I guess I won't get rid of most unless I solve the fuel pressure issue

Engine TDV6

P0191-23 (25) Fuel rail pressure sensor range/performance - General signal failure - signal stays low

P0001-13 (25) Unknown

HeadLight

B10A4-71 (AE) Right swivel actuator - Mechanical failure - actuator is stuck
( on 18-05-2023 16:14:33 at 195982 km )

Parking Brake

U0100-87 (EB) Lost communication with engine control module/powertrain control module 'A' - Bus signal/message failure - missing a message
( on 20-02-2019 11:20:55 at 195982 km )

Suspension

U0416-86 (A7) Invalid data received from vehicle dynamics control module - Bus signal/message failure - signal is invalid
( on 20-02-2019 11:21:03 at 195982 km )

Terrain Response

U0401-94 (27) Invalid data received from engine control module/powertrain control module - Component failure - unexpected operation
( on 20-02-2019 11:21:00 at 195982 km )

U0402-94 (27) Invalid data received from transmission control module - Component failure - unexpected operation
( on 20-02-2019 11:21:00 at 195982 km )

U0416-94 (27) Invalid data received from vehicle dynamics control module - Component failure - unexpected operation
( on 20-02-2019 11:21:00 at 195982 km )

Transmission

U2023-86 (27) Control module network signal calibration data - Bus signal/message failure - signal is invalid
( on 20-02-2019 11:20:55 at 195982 km )

Vehicle Dynamic

U0401-68 (2B) Invalid data received from engine control module/powertrain control module - Algorithm based failure - event information
( on 20-02-2019 11:20:55 at 195982 km )

Ventilation

B1B74-00 (2F) Front foot-defrost mode stepper actuator
( on 20-02-2019 11:20:52 at 195982 km )

B1B75-00 (2F) Front foot-face mode stepper actuator
( on 20-02-2019 11:20:56 at 195982 km )

B1B76-00 (2F) Front left air blend stepper actuator
( on 20-02-2019 11:20:56 at 195982 km )

B1B77-00 (2F) Front right air blend stepper actuator
( on 20-02-2019 11:20:56 at 195982 km )
 Fixing LR problems very far from Solihull.
That's why my newest car is a 1999 Disco 2 V8 with 285.000 miles

The problem is the missing documentation, not the LR 
 
Post #203073821st Feb 2019 2:25 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6235

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

If its not the fuel rail pressure switch, then I would suspect the Hpfp have you checked what kpa it gets to when cranking it over.?

Flack Thumbs Up
  
Post #203091921st Feb 2019 10:32 pm
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annette
 


Member Since: 16 Dec 2017
Location: Tilarán
Posts: 66

Costa Rica 

Sorry to be a total moron, but where is the fuel pressure switch?

I thought I have been staring at the system for hours but must have missed that one??
 Fixing LR problems very far from Solihull.
That's why my newest car is a 1999 Disco 2 V8 with 285.000 miles

The problem is the missing documentation, not the LR 
 
Post #203094922nd Feb 2019 12:07 am
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annette
 


Member Since: 16 Dec 2017
Location: Tilarán
Posts: 66

Costa Rica 

BTW fuel pressure with the pressure sensor disconnected reads 20K bar, with the connector installed it reads 0 bar.

Weird.
VCV gets up to 40%
PCV up to 72 % when trying to start.
 Fixing LR problems very far from Solihull.
That's why my newest car is a 1999 Disco 2 V8 with 285.000 miles

The problem is the missing documentation, not the LR 
 
Post #203095422nd Feb 2019 12:10 am
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Afrover
 


Member Since: 08 Oct 2020
Location: Essex
Posts: 2

England 2007 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Did you ever manage to resolve this? I’ve got the exact same problem with my landy
  
Post #223650116th Jun 2021 9:28 pm
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