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Author Topic: Sharan 140 SE Hunting on Acceleration + other issues  (Read 1975 times)

Offline insanitybeard

  • Greetings from Mr Chick!
  • *
  • Posts: 2450
  • Thanked: 73
  • Model: Galaxy Mk2
  • Spec: '54 130ps TDI Ghia
  • First Name: Paul
  • Region: South West
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #150 on: January 09, 2021, 03:36:27 PM »
Good work, fingers crossed you've got the issue finally sorted! And I'm sure that all the useful images and information you've provided in this thread will prove useful to others.  [GJ]
Always learning..... Often by mistakes!

Offline barlidge

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  • Posts: 157
  • Thanked: 4
  • Model: Sharan Mk2
  • Spec: 2.0TDi 2007
  • First Name: Bruce
  • Region: East Anglia
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #151 on: January 09, 2021, 05:05:54 PM »
Thanks Paul, I really do hope so.  Unfortunately Euro's had the wrong cooler, on their one the pipes come out of the side whereas the one fitted come out of the top and is physically much bigger in size so going to have to wait until Monday when GSF open.

In the meantime I've turned my attention to the Aux heater and getting that working and the coolant up to full temps can only aid the flushing process.  I was just reading a thread in which I think you swapped the later d5z-f for the earlier D5w, do you have any details on the differences on the multiplug.  The fitted d5z is showing internal memory error and from what I understand they are prone to ECU failure.  My old D5w just needs a glow plug.  I have quickly checked the connections at the plug underneath and am showing three lives present but it was starting to get dark and cold so left it for today.

Offline insanitybeard

  • Greetings from Mr Chick!
  • *
  • Posts: 2450
  • Thanked: 73
  • Model: Galaxy Mk2
  • Spec: '54 130ps TDI Ghia
  • First Name: Paul
  • Region: South West
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #152 on: January 10, 2021, 10:55:11 AM »
No, unfortunately it wasn't me that swapped the later D5Z-F type heater for the earlier D5W-Z, somebody else may have though and be able to assist/confirm?

I did depot the old ECU from my D5Z-F as per this thread but didn't resort to substituting the earlier model heater. I can't imagine that the wiring has been substantially changed though, in the first instance it may be worth comparing the two multiplugs to see if they've been changed from one model to the other, if so they can with a bit of a fiddle be dismantled and you could probably swap one for the other.

More discussion here.
Always learning..... Often by mistakes!

Offline barlidge

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  • Posts: 157
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  • Model: Sharan Mk2
  • Spec: 2.0TDi 2007
  • First Name: Bruce
  • Region: East Anglia
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #153 on: January 10, 2021, 06:11:25 PM »
Thanks Paul, must have misread the thread.  Comparing the two plugs they are almost identical, same pins used with the same colour/size cores, the only difference seems to be the retaining catch on the side of the plug but that can be resolved with a little self amalgamating tape.

Unfortunately I wasn't able to get it working today, the sticking point seems to be the air temperature signal wont switch on with either heater.  Have tried it with the temp sender wires shorted out and with the sender itself plugged in which was also tested to provide a closed circuit at ambient temperature and then going open circuit when held in the hand for a few mins to warm it up.  With the older (Galaxy) heater I was able to perform output tests on both the blower fan and dosing pump so that side of it is working.  On the original (Sharan) heater output tests don't do anything but that's not surprising as I suspect the ECU is faulty but VCDS does connect to it and its show a difference in state on the Progr Timer measuring blocks and displays its Memory Module Error fault code.

As its the same on both heaters I think I must be missing something obvious or there is another condition that hasn't been met.  At this stage I only have the heater on the floor and just want to see it begin its start-up phase before I bolt everything in so the system doesn't have any coolant in it and reading Mirez's excellent guide on the heater it apparently shares a coolant sensor with the ECU so am wondering if the system disables it in a low coolant state.

One thing that is confusing me is in Mirez's guide under the Electrical circuit section is states that 12v should be present on pin 5 via the air temp sensor but in the diagram it shows it as pin 6 - I have continuity between pin 6 at the heater plug underneath and the air temp sensor under the bonnet so I think that must be a typo.

« Last Edit: January 10, 2021, 06:13:27 PM by barlidge »

Offline barlidge

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  • Model: Sharan Mk2
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  • First Name: Bruce
  • Region: East Anglia
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #154 on: January 10, 2021, 10:47:27 PM »
Wey hey!, bypassed the coolant pipes from the oil cooler and with a few minutes of running I had oil dripping out from underneath ...

Off to get a new one.

Might get myself a lottery ticket tonight - feeling lucky  ;D


Just checking emails and saw this, cant complain  ;D


Offline SirDavidAlhambra

  • Sir David Alhambra.
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  • Model: Alhambra Mk2 Auto
  • Spec: 2006 1.9 Tdi auto
  • First Name: Dave
  • Region: South East
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #155 on: January 10, 2021, 10:54:33 PM »
Not bad at all.

Congratulations on your winnings!

 [cool]
I drive a Seat Alhambra 1.9Tdi which has 115bhp and an automatic gearbox.

I am happy to help you with all your questions. I am not a qualified mechanic but seem to be better at fixing my car than even the most experienced garages.

I have lots of friends here and very much enjoy talking with you all.

Always remember, a motor car is a serious tool and should be treated with respect. Put your safety first, always.

Offline TFG

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  • Model: Alhambra Mk2
  • Spec: 57 2.0TDi Stylance
  • Region: South West
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #156 on: January 11, 2021, 11:15:56 AM »
@barlidge - brilliant detective work on the oil cooler Bruce  [GJ]. Chapeau. If it's the same as the oil cooler on mine (a '57 plate Alhambra 2.0TDi, so of similar vintage) the oil cooler is Nissens p/n 90655 (not 90608, which has the hose spigots emerging from the side of the cooler and 'crossing over'), or NRF p/n 31168.

Offline barlidge

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  • Posts: 157
  • Thanked: 4
  • Model: Sharan Mk2
  • Spec: 2.0TDi 2007
  • First Name: Bruce
  • Region: East Anglia
  • Country: United Kingdom
Re: Sharan 140 SE Hunting on Acceleration + other issues
« Reply #157 on: January 11, 2021, 09:37:52 PM »
Not bad at all.

Congratulations on your winnings!

Thanks David.

 [cool]
@barlidge - brilliant detective work on the oil cooler Bruce  [GJ]. Chapeau. If it's the same as the oil cooler on mine (a '57 plate Alhambra 2.0TDi, so of similar vintage) the oil cooler is Nissens p/n 90655 (not 90608, which has the hose spigots emerging from the side of the cooler and 'crossing over'), or NRF p/n 31168.

Thanks and yes that's the one, and a right little sausage it is to get the pipes back on if using the existing spring clips, I did think about changing them to jubilee's but once they are on I prefer them.  Picked up one from GSF this morning, all fitted and have started flushing the system - I think that will be a good game played slowly - fill it, run it around for a bit and then drain and refill, probably have to repeat many times, a glug of jizer and dishwasher tab seems to convert the oil to a nice runny brown soup consistency, I wish I had a hot water tap out front to try and help flush it through.

Aux heater working now, it seems the 12v feed into the ambient air temp sensor is intermittent, no idea why and also still have no 12v feed to the run on pump, problems for another day and they are both now fed from a temp supply direct from the battery via an inline fuse, will just have to remember to put the fuse in and take it out until I sort out a better solution switched inside with a time delay relay for the pump.

To change it over to the earlier version - the plugs are the same with the exception of the retaining clips on the side.  The bracketry, coolant pipes and air intake pipe need to be swapped from the doner vehicle and the exhaust will need some sort of retaining fixing making up as the original bolted to the bracketry that has been removed and I cant remember where the doner exhaust bolted to as the Galaxy has gone to scrapyard heaven now but glad I took all the associated Aux heater bits off it before it went.

Time will tell if there is anymore permanent damage cause by the loose injector but it seems good so far.  Will get it flushed over the next few days and then it will be back to the hunting issue

TBC . . .
« Last Edit: January 11, 2021, 09:45:03 PM by barlidge »

 

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