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Fellow Malibu crew, I have a 2014 23LV that I get a "Loss of CAN Signal" upon power on and it will not allow me to crank engine. Initially when using bypass key it will blow the 10amp fuse connected to the Power button. I did some individual disconnect of most of the CAN connected components and was able to get the 10 amp fuse to stop popping and actually crank with the key to give me an engine error code. The code that I get is a SPN:66014 FMI:4. I just paid the dealer to fix prior to list of troubleshooting below and they said they cleaned many of the connections and replaced fuses. It cranked 1 time and ran for about 400 yards and I shut it off and when I tried to start it again I got the same Loss of CAN Signal. Since receiving it back I had a friend who is an airplane mechanic and works on CANbus daily help me, but without having the wiring diagrams for the boat we could only do so much. Here is what we tested: 16 pin Delphi connector at the engine bay gave a 120ohm reading back to the connector under the dash. Disconnected each of the following components individually to test to see if removing them from the CAN network did away with the Loss of CAN signal warning - GPS, Depth Gauge, Paddlewheel, Surf Gate, ECM, Viper control module - Loss of CAN signal continued to show up even after disconnecting each individually and trying to restart Checked all ground connections - I believe the Dealer checked these as well Disconnected and reconnected Starter Checked readings at battery and starter and all were good Cranked with key and pulled emergency shutoff lanyard Tested relay (either PTR or Start) with a 9v battery to ensure relay was good One thing that is interesting is that if I turn the bypass key 1 click the Loss of CAN signal error goes away. Prior to doing this the engine shows 0 hours and no engine info. once I move key to that position the 380 hours comes up along with engine temp, etc. Another thing to note is that depth gauge a few minutes before the 1st Loss of CAN error appeared to be reading erradically bouncing from 2 feet to 4 feet to 6 feet, etc for a few minutes. When I received back from the dealer the depth finder didn't work at all giving a 0 ft reading. I read a few comments from other posts from @csleaver and @oldjeep which were very helpful in troubleshooting. If the ECM was toast altogether, I would assume disconnecting it from the CAN altogether would have proved that but I still got the error . So in short - without the key I get a Loss of Can error and in using the bypass key I can get the SPN: 66014 FMI:4 Sorry for the long post, just looking for any other insight on troubleshooting. Thanks in advance for any direction you can provide. -Ryan

Local service dealer mentioned that this ECM - M6A is no longer being made. How can Indmar or Malibu discontinue a part that is essential to run a boat? Our 2014 boat with less than 300 hrs is worthless without this part as it does not start. The Malibu service dealer sent out the existing one to see if it could be repaired/flashed, but the repair company mentioned that it was bad. I have searched everywhere and no one seems to have any in stock. I have also contacted Indmar and Malibu and hope to get a reply. Malibu is alienating their older loyal clients when they stop providing essential parts for their boats. We love our Malibu boat, but if Malibu is not going to stock essential parts for their boats or provide alternatives to those parts, we will not be buying another Malibu boat. Sorry for the rant... Any help will be greatly appreciated, thank you in advance!

Hi everyone, This is my first post, but about to buy an 05 sportster LX as I’m looking for a good barefoot boat. This one is EFI with the upgraded Monsoon 340. I’m hesitant on getting one with an ECM because I’ve heard stories of older boats with ECMs not able to be replaced. had it checked out by a local mechanic and the timing was off (18) and should be ~10 at idle. He seems to think a tune up (plugs, wires, distributor cap) would get it back to proper timing but I’m just paranoid I buy the boat and it’s an ECM issue and I won’t be able to get the part. I don’t think this mechanic is used to working on malibus. Anyone know what ECM the monsoon 340 needs and any opinion on this boat in general? Always wanted an EFI sportster but wondering if I should back out and go for one with a carb instead. thanks in advance!

What's up crew!!! Need some advice from some of you gear heads. Found a cracked block after winter storms. Every mechanic I talked too was 6 weeks out, so I decided to just buy a new long block and install it my self. It was time consuming but not a terrible job. New motor is back together and in the boat. First start was a little stiff but eventually fired and seemed to idle normal. I then scheduled to take to local Malibu dealership here in Houston for them to set the timing for me. Here is where I need your help. They claim that the timing will not adjust. So I am not sure where the problem could be. I have removed timing cover and checked that timing chain is correct. Distributor points at #1 at top dead center. Could the ecm be in some sort of limp mode that is not allowing timing to adjust? Is the distributor off a gear? Started again on hose yesterday, and I see what they are talking about, when you turn distributor there is no change in engine. If you turn either way very far it just dies. Any help would be great

My 2003 Malibu Response with the 325 Inmar is lacking power . Ive got a top speed of 35mph. And the rpm Guage maxes out at around 3000. Ive replaced plugs, wires, distributor cap, fuel pump with no improvement. The plugs that I replaced were only a couple years old. The four plugs on the starboard side were black. I took it into a mechanic. They can't get any reading from the ECM. They think the ECM is the issue and needs replaced. Before I spend the $1600 to replace it, I thought I would reach out to see if anyone else has had similar issues and if there is something else I should try first.

Hi all, I'm a frequent visitor but have never posted. Sorry if this is not in the right place. I've been doing research on diagnostic scanners for my 2007 rlxi. I have an MEFI -5 ECM. There seems to be a lot of info here and on other forums for MEFI 1-4 but for newer ECMs everything seems to point to Rinda https://www.rinda.com . Their products look awesome but are too pricey for me and don't provide an open interface layer. I'm a DIY'er, non-professional, looking to do some basic diagnostics and maybe build some home brew digital gauges. I'm hoping to get a thread going to collaborate on and save info related to MEFI 5,6 and eControls. I have no commercial interest in this project but I would like to recognize a few companies & websites who have a ton of great, open information and products: OBD Diagnostics https://obd2allinone.com/mefi5scan.asp , Copperhill Technologies https://copperhilltech.com/ Elm electronics https://www.elmelectronics.com/ , Bakes https://www.bakesonline.com/bakes-resource-library Here's a start. I'm happy to share more if there is interest in this project. MEFI-5 an newer (including Econtrols) use a CAN bus, 6-pin diagnostic connector, J-1939 29-bit / 250kbps CAN protocol Connector parts and adapter cables can be purchased from OBD diagnostics Most inexpensive OBD II scanners for cars use the ELM 327 chipset (or some derivative or knock off). These scanners can be reconfigured to use the J1939 protocol to read messages on the bus. Inexpensive Arduino boards with a CAN interface from Copperhill can be quickly configured to read J1939 messages using their free code examples The bad news: the magic decoder to translate raw CAN messages to meaningful human readable information is contained in a proprietary SAE standard The good news: Boats are pretty simple and a lot of the important information is out there in manuals and other examples. First I built a wifi black box "flight recorder". So far I've got an arduino due with CAN transceivers from copperhill streaming CAN messages to a raspberry pi zero. I can read things like throttle position, RPM, Coolant Temp, Oil pressure, engine hours etc. I can also pull any stored / pending DTCs (DM2 messages). The same thing can be done with an ELM 327 based scanner (https://www.scantool.net/obdlink-sx/) but instead of using their software for cars just connect to it with putty (any serial terminal emulator will work) on windows or linux.