Mark Lock
New Member
Hi, I've got the same fault, would you mind sharing how you fixed the problem?
Thanks.
Thanks.
D4 evc problems
- Thread starter Deslarson
- Start date
sfleron
Member
Hi Mark
Yes had that problem. It started the day we picked up the boat, but we were able to "limb" home by shutting down power, wait 5 mins, turn on power - recalibtrate, start and go... however on day 4 it really died and I was not able to trick it to start. I had a VP mechanic on board, he also had a couple of PCU's with him and he was able to make out that the PCU on the port engine was dead... had to be replaced.
Almost 4000 USD later we had a new PCU (funny enough it is ECV-D on EVC-C setup), and now it starts every time.
When we took it off the engine it did smell a little like burned electronics, so it was bad indeed.
You can't change it yourself, it has to be programmed to the HCU and engine serialnumber, so that is a must. not much to do but get a new from VP with a mechanic and then eat rice for the rest of the year...
Since I have 2 engines I was able to swop cables (the error actually indicates error on CAN bus cable from HCU to PCU) and also swop HCU just to check. all pointed to the PCU.
Hope you get it fixed.
BR Soren
Yes had that problem. It started the day we picked up the boat, but we were able to "limb" home by shutting down power, wait 5 mins, turn on power - recalibtrate, start and go... however on day 4 it really died and I was not able to trick it to start. I had a VP mechanic on board, he also had a couple of PCU's with him and he was able to make out that the PCU on the port engine was dead... had to be replaced.
Almost 4000 USD later we had a new PCU (funny enough it is ECV-D on EVC-C setup), and now it starts every time.
When we took it off the engine it did smell a little like burned electronics, so it was bad indeed.
You can't change it yourself, it has to be programmed to the HCU and engine serialnumber, so that is a must. not much to do but get a new from VP with a mechanic and then eat rice for the rest of the year...
Since I have 2 engines I was able to swop cables (the error actually indicates error on CAN bus cable from HCU to PCU) and also swop HCU just to check. all pointed to the PCU.
Hope you get it fixed.
BR Soren
Last edited:
Andyroonot
Well-Known Member
Just an FYI, although the new PCU has a label on it suggesting it is EVC-D, the software is still EVC-C. Volvo streamlined their production and so like-for-like EVC-C PCU’s are now superseded to the EVC-D unit
sfleron
Member
Hi Andyroonot
I figured that, and it makes really good sense to use the same hardware with different software (kind of like a windows laptop). So happy we got it fixed. I did find that the fuellevelsensor was changed and there were some loose cables on the tank. Some of them had power when power on engine was on, so I suspect that could have killed the PCU as they were shorted... The original sensor sits on the PCU I believe... I had it cleaned up
I figured that, and it makes really good sense to use the same hardware with different software (kind of like a windows laptop). So happy we got it fixed. I did find that the fuellevelsensor was changed and there were some loose cables on the tank. Some of them had power when power on engine was on, so I suspect that could have killed the PCU as they were shorted... The original sensor sits on the PCU I believe... I had it cleaned up
papparazzi
Active Member
Hi @Andyroonot , et all - picking this older thread with a related EVC-D question.
I have a twin EVC-D installation on D4-260 and all is working fine. The old owner supplied a set of spare parts which includes 2 x EVC-D PCUs (part 21469062). Funny enough, the sticker on the units matches my chassis ID and serial for each engine, which means that these are eighter the originals and have been replaced or they are 2nd hand and have at least been configured with software to match my engines maybe in an attempt to trouble shoot other issues (swapping components to see if issues go away).
My question is, is it fairly save to switch them with the existing ones to 1) validate they are still working (to potentially sell these) and 2) see if they eventually have more features such as trip computer activated (is this even on EVC or is this on HCU) ? I want to make sure that if they are defective for whatever reason, all what happens is a error code on the display and I can swap them back and all returns to normal... . I hope some here have experience with defective EVCs to share some of your insights. I am adding a picture with the serials in case it would expose further details such as what features are activated.
Attachments
Andyroonot
Well-Known Member
This photo shows the original factory programming sticker on it, and so it will be the original for that engine. If the second PCU has a similar sticker then I’d assume that is the original for that engine
If you can share the engine serial number then it’s possible to see what units were last programmed, and that might give an indication of the history.
But yes, in theory they will still have the original chassis ID’s loaded and so barring any subsequent software updates being applied to the currently installed hardware, these two spares would be plug and play. Assuming they are healthy of course…
As for software features such as Trip Computer etc, these are specific to the engines and are not transferable between engines. So the replacement PCU’s would have the same software features as the spares. And if someone reprogrammed the spares for a different engine then they would inherit the same features as the engine they are programmed for. If that makes sense!
Andyroonot
Well-Known Member
Apologies…the sticker clearly shows the serial number
I’ll take a look and be back with more info…
Andyroonot
Well-Known Member
No history of Volvo ever programming anything on these two engines, but there are a few connections by a Dealer in Singapore in 2020 & 2021. So likely this was the Dealer who supplied/fitted the replacementsApologies…the sticker clearly shows the serial number
I’ll take a look and be back with more info…
No software options currently activated, and for this installation you could have Trip Computer, Single Lever, Cruise Control and Power Trim Assistant.
Happy to send pricing if you want
papparazzi
Active Member
Thanks @Andyroonot . Can I just swap the installed EVC with the spare EVC to test if all is working? In case the old EVC is defective, would this result in errors which can't be removed without VODIA or would I just get an error on 2.5" displays which will go away again ? With the price tag on of these EVC-Ds have they should not be replaced if still in working condition, so might very well be broken ...No history of Volvo ever programming anything on these two engines, but there are a few connections by a Dealer in Singapore in 2020 & 2021. So likely this was the Dealer who supplied/fitted the replacements
No software options currently activated, and for this installation you could have Trip Computer, Single Lever, Cruise Control and Power Trim Assistant.
Happy to send pricing if you want
Andyroonot
Well-Known Member
Yes, if you swap the 'spare' PCU's for the currently installed units then that should be sufficient to help understand if they are healthy or not. It seems strange to have left them onboard if they were faulty, or perhaps the issue were mis-diagnosed and the previous owner kept the originals as good spares...
You WILL get alarms when you initially plug them in as the system won't recognise them and will still be looking for the current units, but once you auto-configure the system (some straight forward button pushes) then the system will learn that the spare units are now installed and will only be looking for them.
Once thats all done and everyone has shaken hands with the other then you can put it through it's paces and see if all of the expected bits function, i.e. gear shifting, power trim, no fault codes etc.