2007 D6 350 Issues

[Ky343]

I am new to this forum and the 2007 Volvo Penta D6 350s with the EVC system. I have twin diesels with DPH-A drives. I recently pulled it out of storage to change the impellers. This went pretty well considering it was my first set on this type motors. I removed the fuel filters along with a couple water lines during this process. After installing them I first started the sb engine. All was well. I turned the battery switch on for the port engine and it clearly energizes like the sb engine. The port side gauge cycled through all of the warning lamps, stopping on the orange triangle indicating a fault. Area in tach for a fault code is blank. None of the port side gauges are activated. Whenever the key switch is turned to the start position, there is no sound whatsoever. The triangle continues to flash on port gauge even after key switch is turned off. It will do so until the battery switch is turned off. Also, the tilt/trim does not work at all on either drive. No sound at all. With both key switches on I tried holding down the N button and pushing the trim button. Nothing. Batteries are less than a year old and fully charged. I have cleaned and checked many contacts Any input will be greatly appreciated.

 

[Andyroonot]

It sounds like you could have a control unit issue

As it’s a twin engine you could try swapping some bits and seeing what works when you do so.

If you wanted to prove the helm station is good then you could switch the cables in the engine bay. If you could send some photos of the engine bay then it might be possible to spot the control units in question (called the PCU’s) and then advise from there

 

[Ky343]

It sounds like you could have a control unit issue

As it’s a twin engine you could try swapping some bits and seeing what works when you do so.

If you wanted to prove the helm station is good then you could switch the cables in the engine bay. If you could send some photos of the engine bay then it might be possible to spot the control units in question (called the PCU’s) and then advise from there

We switched the PCUs in the beginning without change but did not reset each to match that engine. I’m being told that had to be done. My person who fits in the bilge area where the PCUs are located isn’t available until next weekend. Both are mounted on the SB side of the engine compartment. The EVC system appears to be either an A or B Than you.

 

[Andyroonot]

We switched the PCUs in the beginning without change but did not reset each to match that engine. I’m being told that had to be done. My person who fits in the bilge area where the PCUs are located isn’t available until next weekend. Both are mounted on the SB side of the engine compartment. The EVC system appears to be either an A or B Than you.

So if you switched the PCU’s but there was no change to the port side then they can be assumed to be ok

There are similar units at the helm called the HCUs, and this could be at fault. Easy to swap and yes, configuring to each engine is correct but for the symptoms you’ve reported, probably not required as if the other side doesn’t then show any life then you’ve probably cracked it.

Where are you based?

And are the PCU’s metal or plastic?

 

[Ky343]

So if you switched the PCU’s but there was no change to the port side then they can be assumed to be ok

There are similar units at the helm called the HCUs, and this could be at fault. Easy to swap and yes, configuring to each engine is correct but for the symptoms you’ve reported, probably not required as if the other side doesn’t then show any life then you’ve probably cracked it.

Where are you based?

And are the PCU’s metal or plastic?

The HCUs are currently next on the menu. Also looking into data cable between PCU and ECM. Im in Ky. USA

So if you switched the PCU’s but there was no change to the port side then they can be assumed to be ok

There are similar units at the helm called the HCUs, and this could be at fault. Easy to swap and yes, configuring to each engine is correct but for the symptoms you’ve reported, probably not required as if the other side doesn’t then show any life then you’ve probably cracked it.

Where are you based?

And are the PCU’s metal or plastic?

plastic

 

[Ky343]

So if you switched the PCU’s but there was no change to the port side then they can be assumed to be ok

There are similar units at the helm called the HCUs, and this could be at fault. Easy to swap and yes, configuring to each engine is correct but for the symptoms you’ve reported, probably not required as if the other side doesn’t then show any life then you’ve probably cracked it.

Where are you based?

And are the PCU’s metal or plastic?

The HCUs are currently next on the menu. Also looking into data cable between PCU and ECM. Im in Ky. USA

 

[Andyroonot]

The HCUs are currently next on the menu. Also looking into data cable between PCU and ECM. Im in Ky. USA

plastic

Ok so they sound like they will be EVC-B. As you’ve got one gauge doing something it sounds like the power to the HCU is ok, so possibly just a faulty unit.

 

[Ky343]

What is puzzling to me is the correlation between 2 outdrives not moving and one engine that wont turn over

 

[Andyroonot]

What is puzzling to me is the correlation between 2 outdrives not moving and one engine that wont turn over

If the HCU for the non starting engine is faulty then this will explain that engine not cranking/running

As for both drives not trimming, the powertrim panel is connected to both HCUs as well and so again, if one side is faulty then it could well explain it.

Personally I wouldn’t read too much into the trim issue on both until you sort the non-starting for the first engine

 

[Ky343]

If the HCU for the non starting engine is faulty then this will explain that engine not cranking/running

As for both drives not trimming, the powertrim panel is connected to both HCUs as well and so again, if one side is faulty then it could well explain it.

Personally I wouldn’t read too much into the trim issue on both until you sort the non-starting for the first engine

Thanks again

 

[Ky343]

I forgot to include this earlier.