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zinke
Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584
 
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Very strange if it’s not starting but no codes. I’m assuming your reading the codes with the wtt software and lead to a pc? Maybe try starting it and video the status screen on the wtt software, would have a better idea when it’s shutting down then and for what reason.
Pete. IID, webasto software and workshop facility's available.
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 20th Mar 2018 8:35 pm |
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jonathanrichards
Member Since: 11 Jan 2018
Location: Hull
Posts: 152
 
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I'll try again in the morning, but it starts the starting cycle and I can hear combustion happening (with smoke), then as it seems to accelerate, it then enters a cooling cycle and stops.
Maybe tomorrow I'll be more diligent and look for a code.
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| 20th Mar 2018 8:41 pm |
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zinke
Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584
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Sounds like it’s doing the “02h” fault, which I think is just a general fail to start (normally because of carbon build up) or it’s a overheat fault which will probably be a bad sensor if it’s happening so soon. If your reading the faults with a iid you won’t always see everything that’s stored in the heater that you will with the wtt software, well that’s my experience anyway.
Pete. IID, webasto software and workshop facility's available.
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| 20th Mar 2018 9:34 pm |
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jonathanrichards
Member Since: 11 Jan 2018
Location: Hull
Posts: 152
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Yes, tomorrow if hairdryer and persistence day.
Let's hope I can get it started long enough to change the CO2 level
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| 20th Mar 2018 10:18 pm |
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Slovsdisco
Member Since: 19 Dec 2018
Location: Cornwall
Posts: 44
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Any joy on this? Would be nice to understand if you were successful in tracing your fault? Landrover discovery 3, 2005, TDV6, manual, 5 seats
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| 17th Jan 2019 9:26 pm |
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jonathanrichards
Member Since: 11 Jan 2018
Location: Hull
Posts: 152
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Yes, I found that the power wire had a break in it. So I ran a fresh power lead to the pump from the FBH - down the chassis rails, to the pump. The pump then worked fine.
I had some other issues with the FBJ and you can see a film I made about it here which also shows the new wire I fitted.
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| 17th Jan 2019 10:23 pm |
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jonathanrichards
Member Since: 11 Jan 2018
Location: Hull
Posts: 152
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It's the blue wire you can see in this YouTube thumbnail above.
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| 17th Jan 2019 10:24 pm |
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Slovsdisco
Member Since: 19 Dec 2018
Location: Cornwall
Posts: 44
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Great footage and very helpful. Certainly gives me something to start with.
My 88h fault is intermittent however, in that some days it appears to run, and others not.
First port of call was to replace the FBH pump with a second hand one. It flashed up and ran straight away with a clean burn (ruling out the issue you had with mismatched parts). Few days later it begins to be intermittent again. WTT diognostics last night states 88h again.
Interestingly it ran quite well after I initially changed the pump out. Can’t help but think I may have some minor blockage in the suction line from the tank and me fiddling around wit the pump may have helped the restriction. I might see if a blow of an air gun (low pressure) into the fuel tank might remove anything that might have become lodged in that line. Landrover discovery 3, 2005, TDV6, manual, 5 seats
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| 18th Jan 2019 9:02 am |
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Martin
Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18573
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As the FBH is reporting an error with the pump - 88h (0x88) is "fuel pump failure", then I would be looking at the fuel pump wiring.
A lack of fuel getting to the FBH (e.g. due to blocked pipes) would likely create a "no start" error, as the FBH would be happily operating the pump, but it couldn't light a flame due to no fuel.
If you need a replacement FBH fuel pump connector or any terminals etc to make up a new/temporary wire then I've got parts in the site shop: www.disco3.co.uk/shop/webasto-wiring-parts-c15.html 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
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| 18th Jan 2019 9:55 am |
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Slovsdisco
Member Since: 19 Dec 2018
Location: Cornwall
Posts: 44
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That does make sense come to think of it. logic would dictate, i should run the methodology Jonathan adopted with regards to running in a new wire off my test harness to the fuel pump.
ill give it a go over the weekend. Landrover discovery 3, 2005, TDV6, manual, 5 seats
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| 18th Jan 2019 3:32 pm |
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jonathanrichards
Member Since: 11 Jan 2018
Location: Hull
Posts: 152
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Good luck.
My approach is step by step diagnostics of each component. Then the problem usually presents itself sooner or later.
Took a while to figure mine out as it had a broken power supply to the pump and needed a new burner. Once those were fitted, I couldn't quite believe it didn't work properly. The last thing I expected was a part incompatibility (the pump).
That was a bit of a curve ball...
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| 19th Jan 2019 10:40 pm |
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