KAD300 EDC Still Messing Me About

S

Sishoe

Well-Known Member
Joined
6 Apr 2013
Messages
189
Location
Warsash
www.indigofiresystems.com
This is really starting to do my head in.
A few weeks back I posted a thread about my starboard engine mysteriously engaging forward when in neutral.
Since then I've had trouble getting a SB neutral light when trying to start the engines, had the SB engine disengage drive and drop to 1K rev when crashing down off a wave and the same engine not disengaging drive when the lever is returned to neutral.
When the last of the above 3 incidents occurs, I've found that the neutral point has drifted to the reverse point and reverse is in the reverse throttle zone.
We initially checked wiring and plugs under dash and on engine and everything seems fine. Then the potentiometer was changed in the SB control. But still the same intermittent fault.
I've lost count of how many times I have now re-calerbrated the control.
Time to get VP engineer involved who looked at the boat this morning, but didn't really find anything. He did recommended some kind of module that is fitted to the wiring coming off the helm control that apparently cleans up the signalling and stops any power spikes.
I can't see it working, anyone else got any ideas what could be causing it?
One thing, it seems to be more of a problem if I've left the chargers off, although the batteries (which are only six months old) are still reading 12+ volts before starting the engines. Also the auto shift problem has occurred 3 times, all after extended running in gear at tick over or on the pontoon with engines running.
I'm running out of ideas and the summer is surely just about to start!
Thanks
 
I was in gosport yesterday, who are you using , dealer or one man band.

What boat do you have, as they all have there own glitches where build is concerned ,

Kad 300 a real simple motor, I often find faults are down to builder and not Volvo.
 
Last edited:
Hi Paul
It was looked at by Motortech, first time I've used them and the engineer seemed a good guy, but it seems I have a difficult gremlin to find.
My usual engineer is OK with VP products, but by his own admission is not a specialist, hence calling in MT.
The boat is a Gobbi 425sc 2004 - 170hrs and generally in good nick for age.
My gut feeling, but what do i know, is that there could be slight damage to the loom between the helm and the engine, which is effecting the signals/voltages.
 
Sishoe said:
Hi Paul
It was looked at by Motortech, first time I've used them and the engineer seemed a good guy, but it seems I have a difficult gremlin to find.
My usual engineer is OK with VP products, but by his own admission is not a specialist, hence calling in MT.
The boat is a Gobbi 425sc 2004 - 170hrs and generally in good nick for age.
My gut feeling, but what do i know, is that there could be slight damage to the loom between the helm and the engine, which is effecting the signals/voltages.
Click to expand...

I've worked on few gobbi 425 including Moody's old one off the forum.
A nicely put together boat, I'd say its a corrosion issue, did he swap the ecu over from one engine to the other? , I'd be checking the edc loom from the engine to the helm there could be a corrosion issue, also the edc keypad can corrode and the pot sensors,

Do you get any fault codes at all? If not then its got to be a wiring issue on the shift .
 
Sishoe said:
This is really starting to do my head in.
A few weeks back I posted a thread about my starboard engine mysteriously engaging forward when in neutral.
Since then I've had trouble getting a SB neutral light when trying to start the engines, had the SB engine disengage drive and drop to 1K rev when crashing down off a wave and the same engine not disengaging drive when the lever is returned to neutral.
When the last of the above 3 incidents occurs, I've found that the neutral point has drifted to the reverse point and reverse is in the reverse throttle zone.
We initially checked wiring and plugs under dash and on engine and everything seems fine. Then the potentiometer was changed in the SB control. But still the same intermittent fault.
I've lost count of how many times I have now re-calerbrated the control.
Time to get VP engineer involved who looked at the boat this morning, but didn't really find anything. He did recommended some kind of module that is fitted to the wiring coming off the helm control that apparently cleans up the signalling and stops any power spikes.
I can't see it working, anyone else got any ideas what could be causing it?
One thing, it seems to be more of a problem if I've left the chargers off, although the batteries (which are only six months old) are still reading 12+ volts before starting the engines. Also the auto shift problem has occurred 3 times, all after extended running in gear at tick over or on the pontoon with engines running.
I'm running out of ideas and the summer is surely just about to start!
Thanks
Click to expand...



In the out drive ( DPG ) under the top cover there is a a " device " it's square shaped thingy with a allen bolt at each corner this needs replacing , wears out - Its something to do with the issue s that you described- engaging gears ?
Reason why I say this -is that mine -same as your s have been serviced by proper VP agents ) now 10 y old - been fault free ) and at last service -the drives were removed ( for 2 yearly bellows replacement )
Taken into to workshop - Aire D Boom - Port D La Rague SoF -for 2 days .
I was with a mate doing annual anti foul etc ,but wondered into shed - now and agian to find my drives in " bits" everything being checked / measured wirh a micrometer -by a guy who does this sort of thing every day .
Once ( an extra € 300 on top of the original quoted price for routine servicve ) these gear change parts were replaced , at the lift in/ launch the engineers insisted on a sea trail - to check the forward/ neutral / reverse - function -so off they went - blatting round the bay of Cannes for 1 /2 hour while Me and Mate left ashore!
2 days later they asked me ( got a call from reception ) to return for a check .ths consisted of a complementary haul out , while still in the slings the same technition asked if all was ok then proceeded to poke a long screwdriver up a hole under the Skeg.
Then relaunched -off we went
No dought Volvo Paul will be along to properly explain what's exactly gone off here .

Never actually had your prob - but how are you or have you been adhering to VPs service schedules ?
Suspect a link ??
 
He didnt swap anything around, he had a look under the righthand dash panel at the plug, expecting to find corrosion, but all clean. Can you test the edc loom in-situ or is it better to just replace it, and plug back in at each end (not that simple id imagine).
Only time a fault code has appeared is when the engine cut out when coming of a wave and then it was 2.7 if i remember right, potentiometer fault.
The other symptoms don't bring up a fault code, as i suppose nothing is actually at fault, apart from the potentiometer positional readings being incorrect.
 
Portofino said:
In the out drive ( DPG ) under the top cover there is a a " device " it's square shaped thingy with a allen bolt at each corner this needs replacing , wears out - Its something to do with the issue s that you described- engaging gears ?
Reason why I say this -is that mine -same as your s have been serviced by proper VP agents ) now 10 y old - been fault free ) and at last service -the drives were removed ( for 2 yearly bellows replacement )
Taken into to workshop - Aire D Boom - Port D La Rague SoF -for 2 days .
I was with a mate doing annual anti foul etc ,but wondered into shed - now and agian to find my drives in " bits" everything being checked / measured wirh a micrometer -by a guy who does this sort of thing every day .
Once ( an extra € 300 on top of the original quoted price for routine servicve ) these gear change parts were replaced , at the lift in/ launch the engineers insisted on a sea trail - to check the forward/ neutral / reverse - function -so off they went - blatting round the bay of Cannes for 1 /2 hour while Me and Mate left ashore!
2 days later they asked me ( got a call from reception ) to return for a check .ths consisted of a complementary haul out , while still in the slings the same technition asked if all was ok then proceeded to poke a long screwdriver up a hole under the Skeg.
Then relaunched -off we went
No dought Volvo Paul will be along to properly explain what's exactly gone off here .

Never actually had your prob - but how are you or have you been adhering to VPs service schedules ?
Suspect a link ??
Click to expand...

Thanks for this, drives were off a couple of weeks ago and serviced, everything was ok. But the VP engineer said today that he though they were not set up right as they didn't clunk heavily enough into forward drive, don't think it connected to my other problems, but another thing to sort out.
The boat has a somewhat sketchy service history, although its only on 170hrs (confirmed by VP engineer today). It looks like i'm getting all the niggley problems you seem to get with a boat with not enough hours on.
 
First of all forget using main Volvo dealers. They don't fix anything they just replace everything until eventually the problem is fixed but in the meantime they will ransack your bank account for the privilege.
Secondly, get Volvopaul on the case as he's an expert on Volvo's and also a good old fashioned engineer.
 
crazy4557 said:
First of all forget using main Volvo dealers. They don't fix anything they just replace everything until eventually the problem is fixed but in the meantime they will ransack your bank account for the privilege.
Secondly, get Volvopaul on the case as he's an expert on Volvo's and also a good old fashioned engineer.
Click to expand...

Yeah i'm getting that impression, thanks.
Passed on your details re the V40, but I think the guy decided he wanted new and has done a deal on a smaller new Bav31.
 
crazy4557 said:
First of all forget using main Volvo dealers. They don't fix anything they just replace everything until eventually the problem is fixed but in the meantime they will ransack your bank account for the privilege.
Secondly, get Volvopaul on the case as he's an expert on Volvo's and also a good old fashioned engineer.
Click to expand...

Thanks andy, please not so much of the "old" !!!
 
Have you tried swapping the connectors at the throttles over port to starbord and visa versa to see if the problem migrates or stays on the same side if the problem stays on the same side your edc throttles could be goosed,

regds ashley
 
zt260 said:
Have you tried swapping the connectors at the throttles over port to starbord and visa versa to see if the problem migrates or stays on the same side if the problem stays on the same side your edc throttles could be goosed,

regds ashley
Click to expand...
The pots were changed. Your idea might check the wiring loom, but that assumes there is length in the looms to swap over. Maybe they are set lenghts, but if not, I doubt the port loom will each the startboard engine, if you see what I mean.
 
Think i may have found something!!
Since the boat was looked at last week its been out twice and performed perfectly. But today on popping down there to get some bits off, I tried the ignition and found that the starboard engine N light on the EDC would only light if the shift was put in reverse.
I decided to remove the starboard section of dash to inspect the 2 cable blocks checked by the VP engineer last week, on inspection I noticed 3 further grey cable block located at the bottom of the dashboard void, pretty much completely obscured by cables above. On sticking my hand down there to give the cables a fondle the N light suddenly lit with the throttle in the correct neutral position.
Could this be the source of my gremlins?
Someones going to have hell of a job getting down to them to split apart to clean connections, anyone know what these 3 cable blocks are?
 
Sishoe said:
Think i may have found something!!
Since the boat was looked at last week its been out twice and performed perfectly. But today on popping down there to get some bits off, I tried the ignition and found that the starboard engine N light on the EDC would only light if the shift was put in reverse.
I decided to remove the starboard section of dash to inspect the 2 cable blocks checked by the VP engineer last week, on inspection I noticed 3 further grey cable block located at the bottom of the dashboard void, pretty much completely obscured by cables above. On sticking my hand down there to give the cables a fondle the N light suddenly lit with the throttle in the correct neutral position.
Could this be the source of my gremlins?
Someones going to have hell of a job getting down to them to split apart to clean connections, anyone know what these 3 cable blocks are?
Click to expand...

They could be the link to a flybridge loom I doubt they would cause your fault as there just a t into the loom .
 
Holy thread resurrection.

Hi Simon,

Did you get to the bottom of this? I am having exactly the same problem. It happened a few times and i reset the SB EDC. Swapped the control over so I'm using the PS buttons for SB levers and engine and fault still occurs.

When it drops out of sync I can always find nuetral by movingthe sb lever, normally to almost full reverse and it lights up.

It drops out at random times, yesterday we were doing about 24 knots and suddenly the SB roared ahead and gained revs.

(I also have an issue with the hydraulic rams which means the engine doesnt trim accurately, these are being replaced next week, could this have any impact?)

Cheers

Simond
 
Simond S said:
Holy thread resurrection.

Hi Simon,

Did you get to the bottom of this? I am having exactly the same problem. It happened a few times and i reset the SB EDC. Swapped the control over so I'm using the PS buttons for SB levers and engine and fault still occurs.

When it drops out of sync I can always find nuetral by movingthe sb lever, normally to almost full reverse and it lights up.

It drops out at random times, yesterday we were doing about 24 knots and suddenly the SB roared ahead and gained revs.

(I also have an issue with the hydraulic rams which means the engine doesnt trim accurately, these are being replaced next week, could this have any impact?)

Cheers

Simond
Click to expand...
The fault did not reoccur during my ownership, once I'd I found the VP terminal block that appeared to have a dry/loose connection. I don't think it was ever split apart as it was almost inaccessible, I just gave it a good spray with electrical cleaner and the fault didn't re-occur. Although I think the fault was long standing and it was mentioned in the pre-purchase survey report carried out by the owner prior to me.
The connector block in question is located under the right hand dash panel (the one with the ignition switches, thruster levers on) There are a few large Volvo connector blocks in the cable void below, right at the very bottom was the block I found to be iffy.
Hope this helps.
Good Luck
 
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