Forum-Gallery-Shop-Sponsors

« Advertise on Freel2.com

Home > Technical > P2563-73 Turbo Boost Position Sensor.....More Problems
Post Reply  Down to end
Page 1 of 3 123>
Print this entire topic · 
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver
P2563-73 Turbo Boost Position Sensor.....More Problems

Car has been nothing but trouble since lockdown. Think it has something to do with not going any real distance
List of problems.
Car now starts very badly, can take 15-20 seconds of cranking when cold to start.
Stop Start function has stopped completely.
Biggest issue is car going into limp mode almost constantly with the code Turbo Boost Position Sensor Circuit A Range/Performance.
Scanned for codes....

P02E8-00 Diesel intake airflow position sensor - circuit low
P0100-00 Mass or volume air circuit
P0103-27 Mass or volume air circuit high input
P0103-22 Mass or volume air circuit high input
P2563-73 Turbo boost control position sensor circuit A range/performance

P164C-00 Internal control module start-stop performance

This is what I have done so far.

Cleaned the variable geometry vanes (in situ) as it was sticking. Now moves effortlessly with actuator arm.
Removed and cleaned the throttle body.
Replaced MAF Sensor
Replaced MAP Sensor
Replaced Crank Position Sensor
Swapped the the turbo actuator motor with the one from my other turbo.

Battery is fully charged and only a couple of years old.

Took car out to Doncaster yesterday, 110 mile there. Car went into limp mode FIVE time. Had to keep stopping and clearing the fault with an OBD pug in. On the way back, drove most of the way with only the occasional hesitation on acceleration. Almost home, reached the roadworks on the A19 (new flyover at Testoes roundabout) 40mph for approx. 2 mile, car went into limp mode again. Censored

Went to Doncaster to purchase another car as a run a bout as this one is so unreliable.

I'm hoping someone can point me in the right direction before I turn this into scrap. Thumbs Up


Just remembered did a diagnostic test with SDD of the air intake etc. this is what it showed.


 Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401431 20th Dec 2020 4:25 pm
View user's profile Send private message View poster's gallery Reply with quote
davyboy



Member Since: 30 Aug 2020
Location: Staffordshire
Posts: 156

United Kingdom 2009 Freelander 2 TD4 HSE Auto Santorini Black

Hello gasman, sorry to hear of your turmoil as sometimes it feels soul draining, not sure who it was but recently a forum member posted something they had seen on YouTube where there is a wiring loom slowly cutting through on the support frame of the air intake filter lower box. Just behind the headlight unit.

This time last year I had so many niggles with mine, poor cold starting, rough idle, sometimes failure to start, last time I thought that was it, it seems worse when wet, either the rain on a run, or being jet washed around the nearside front wing, and then I found the cabling cut through and shorting just the other week from advice regarding that cabling issue.

Mine now starts, no limp mode, smooth idle.

With having a company car the freelander only is used as last resort but now.

Have a look, it may be your cause?

Post #401439 20th Dec 2020 5:57 pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Hi Davyboy
That sounds like a bit of a head banger of a problem.
You never know with these Censored cars anything could be possible. Ill have a look tomorrow see what I can find.
Thanks for the tip. Thumbs Up Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401445 20th Dec 2020 7:14 pm
View user's profile Send private message View poster's gallery Reply with quote
jules



Member Since: 13 Dec 2007
Location: The Wilds of Warwickshire
Posts: 4518

United Kingdom 2014 Freelander 2 SD4 SE Auto Firenze Red

I'd check the earth from the battery - a known problem area.
If there's a high resistance then the voltage will not be maintained during starting - can cause all sorts of electrical faults.
Damp & corrosion is all that is needed.

Quite few of us have added a second earth in response to earthing issues. Jules

Post #401447 20th Dec 2020 8:04 pm
View user's profile Send private message View poster's gallery Reply with quote
rusty_wingnut



Member Since: 04 Jun 2013
Location: Surrey
Posts: 44

United Kingdom 2007 Freelander 2 TD4 S Auto Baltic Blue

I'd have a read of my ongoing saga as well mate:

https://www.freel2.com/forum/topic35677.html

Post #401470 21st Dec 2020 11:25 am
View user's profile Send private message View poster's gallery Reply with quote
brom



Member Since: 06 Nov 2020
Location: Vrancea
Posts: 23

Romania 2011 Freelander 2 TD4 S Manual Kosrae Green

Check intercooler radiator an hose for any oil leaks is one of the causes for intermitent limp mode and high speed hesitantions.

Post #401471 21st Dec 2020 11:45 am
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Hi Jules
Battery negatives are ok. I have the second earth as is suggested on the forum, plus an additional one connected to the starter mounting bolt. Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401483 21st Dec 2020 1:57 pm
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Hi Rusty_Wingnut
Sounds like you are having one hell of a time as well.
Also very little in the way of replies.
As yet I haven't looked at any of the wiring

Is the boost control sensor the MAP sensor, getting a bit confused. Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401484 21st Dec 2020 2:15 pm
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Hi brom
Thanks for the reply.
Not long since I changed the intercooler hoses to silicone ones. Had the intercooler out at the same time, all was well then.
Suppose it wouldn't do any harm to check again but that will have to wait until better weather. Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401486 21st Dec 2020 2:21 pm
View user's profile Send private message View poster's gallery Reply with quote
rusty_wingnut



Member Since: 04 Jun 2013
Location: Surrey
Posts: 44

United Kingdom 2007 Freelander 2 TD4 S Auto Baltic Blue

Let's face it mate, the average Freelander/Disco or Range Rover owner isn't going to get dirty and investigate! I'm just lucky I got a mate who works for a main dealer.

I think the standard approach is to change all sensors, then throttle body. After that it starts to get messy!


On another note the chaffed wiring - I found my car was armoured all along the length and no chaffing could occur. I wondered if some cars were poorly armoured?

Post #401525 22nd Dec 2020 10:47 am
View user's profile Send private message View poster's gallery Reply with quote
alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4640

When starting there is no turbo implications (no exhaust means no boost), so the car should start without problems, even if you have a problematic turbo and/or a leaking intake system.
The fact that you cant start it normally leads to think that it is either:
1. an air intake problem - check the electric throttle, no need to check the hoses and the turbo because, remember, the engine starts without boost/turbo
2. a fueling problem - check that you have fuel on the rail and you don't need to bleed again the system
3. an engine control problem - check crankshaft and camshaft sensors, check the fuel rail pressure sensor, check the fuel rail and high pressure pump return valves.

Post #401547 22nd Dec 2020 7:11 pm
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Thanks for jumping in Alex Bow down

Going through your list.
1/ Check the throttle body. I assume we are looking for damaged cogs in the motor assembly. I haven't taken that apart yet as
I don't have any unusual noises from it but I will check.

2/ Fuel Rail.......What's the best way to check that. As its very high pressure I have always left that one. Have never gone any
further than changing the fuel filter.

3/ Have already changed the crank sensor. Never thought about the camshaft sensor. Don't know how to test it but I could
always order a replacement and change it anyway, after all the car is eleven and a half years old and that will be the original

That gives me something to work on thanks. Thumbs Up
I'll post back with the results.




Thanks also Rusty_Wingnut for the encouragement.
I have checked the wiring visually and can't see any issues. To be honest it looks in showroom condition. I like to keep the engine bay clean so its easier to spot trouble.
Or so I thought. Laughing Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401550 22nd Dec 2020 7:52 pm
View user's profile Send private message View poster's gallery Reply with quote
alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4640

1. Yes, a diesel engine without (enough) air will hardly start. Easier way - make sure the flap is open and then you can remove the motor electrical connector. It will throw an error, but it should start.

2. You need a multimeter or SDD to monitor the parameters like fuel rail pressure. No fuel or air in circuit will translate in low pressure.

3. Crank is crucial for starting and running. Cam is crucial only for starting. Then it's ignored.

Focus at this point only on proper starting. No matter how it will behave during running, you must have a proper starting for starters... Laughing
Then, when you will have that solved, focus on what's happening on the road, eventually log/graph some key parameters like throttle request vs. rpm vs. intake pressure and you will get some ideas.

Post #401553 22nd Dec 2020 9:35 pm
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

That's a big help Alex.

Gives me something to look for. Will probably take me a couple of days to check this lot out.
Don't mind admitting I'm slow Whistle but I will post back my progress.

Again many thanks. Thumbs Up Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401554 22nd Dec 2020 10:08 pm
View user's profile Send private message View poster's gallery Reply with quote
gasman



Member Since: 02 May 2013
Location: Tyneside
Posts: 857

United Kingdom 2009 Freelander 2 TD4_e GS Manual Zermatt Silver

Haven't updated this post yet as I am still waiting for the new camshaft position sensor to arrive. Due to the Christmas post backlog I'll just have to wait and see.
Wanted to do all the issues in the order that Alex suggested, starting with the camshaft position sensor.
I'll post results when I have some. Thumbs Up Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Post #401774 28th Dec 2020 2:28 pm
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 1 of 3 123>
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
Freel2.com RSS Feed - All Forums


Switch to Mobile site