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  1. M

    2019 Volvo V8 380 C-M won't start unless i give it throttle

    This ECM will store codes 3 places. Active, Previously Active and Pending. Codes will be reported in the SPN/FMI format and the technician will use the manual to covert them to a DTC to troubleshoot. It would be interesting if there are any codes.
  2. M

    VP 2014 300Hp V8 duo-prop, 35 regal twin fly-by-wire

    This is very interesting because it goes against what is printed in all of Volvo’s diagnostic manuals. There are some codes that will prevent a start on these engines, but they mainly deal with checks that the ECM preforms on itself at key on. And they mostly deal with internal processor...
  3. M

    2019 Volvo V8 380 C-M won't start unless i give it throttle

    Didn’t know you had a scan tool. I haven’t used the techmate pro so I don’t know what it’s capable of. But in Diacom you would look in the Throttle Monitor section and see what the IVS (Idle validation switch) is doing at closed throttle and when it turns off as you advance the throttle. Also...
  4. M

    Leak from water distribution housing

    Yup, I’ve replaced a few of these. Always because of bad winterizing. If you can’t do it properly it’s probably best to remove the system. Also a bad system in saltwater, really want closed cooling in salt.
  5. M

    Volvo Penta 280 Drive Shaft Nut Clearance

    Shims go between the clamp ring and bearing box on a 280. No shims between clamp ring and upper gearbox on these. These shims show as still available in the parts lookup. Are you sure you are working on a 280? The uppers can be mixed and matched on a lot of these drives. Are you using a crush...
  6. M

    240 v6 alarms for over heating upon startup

    Thanks for the s/n. Yes this is the engine I thought it was. The “J” model engines (your engine) were a big change in the programming that was loaded into the ECM. So nobody can know if this code sets KOEO or KOER. Only way to tell is unplug the sensor while watching the scanner in both states...
  7. M

    240 v6 alarms for over heating upon startup

    I should probably add that these engines will only throw some codes with the engine not running and some codes with the engine running. Did your mechanic scan both ways? Did they look in all the possible places, “active”, “previously active” and “pending”? I have to question this because they...
  8. M

    240 v6 alarms for over heating upon startup

    s/n is no good. should be 10 digits or a letter with 6 digits so still guessing. I have no idea what your checking with a multi meter? volts, amps, ohms. Or where you might be checking? The code you posted is for the starboard exhaust elbow. There are only 3 possible causes for this code...
  9. M

    Boating basics

    https://www.mercurymarine.com/en/us/land/boating-basics/?mkt_tok=MzY3LU1OVS0wMjQAAAGL8lKfn1_ns5MssRcc9XyNm3GDPLmD0v9A4e9FKJJGL2eF5KZw_wMhBi3VvY-JJy8giYU0nUfGLU5LN4bgzror9IMWWtAPMHsH67oDNF9A A good series of videos most people could learn something from. Courtesy of Mercury Marine.
  10. M

    5.7 MPI Misfires Under Load

    Would love to look at them once we get the serial number and ECM figured out. You can use. Dropbox Onedrive Googledrive to post these files so we can all see, just upload them and post the link here
  11. M

    240 v6 alarms for over heating upon startup

    You didn't post a serial number so can't be sure. But if you go to --- https://www.volvopenta.com/en-us/service-and-support/your-engine/manuals-and-handbooks/ --- and input your S.N. it will tell you what workshop manuals are used to diagnose and repair this issue. Also this site will alert...
  12. M

    2019 Volvo V8 380 C-M won't start unless i give it throttle

    If memory is correct, that’s where the EVC would mount if you had that option.
  13. M

    Ignition service manual 1997 4.3GL

    you can use the link that Don S has provided to troubleshoot this problem. keep in mine that most distributor modules from the auto parts store or Amazon won’t work for you. usually they need to be marine specific.
  14. M

    5.7 MPI Misfires Under Load

    Thanks for the offer. Would love to look at them once we get the serial number and ECM figured out. I did notice that you pointed out a low temperature problem. Probably be good for the O.P. To get that resolved.
  15. M

    5.7 MPI Misfires Under Load

    Post those and the other info and we can try to help.
  16. M

    VP 2014 300Hp V8 duo-prop, 35 regal twin fly-by-wire

    Yes, serial number. But also EVC version is important. You might need a scan tool to find the problem, but if you correct the problem and do a restart. That will clear the shutdown. Generally speaking, only thing that will shut an engine down is complete loss of fly by wire info to the...
  17. M

    4.3 Mercruiser MPI Chugging/Surging and Beeping during turns/Waves

    Yes it seems that a lot of posters don't realize how important the serial number is to getting good advice. Even what would seem to be a minor difference --- say two engines that are the same, the only thing is one has freshwater cooling and the other has rawwater cooling ---- they will have...
  18. M

    5.7 MPI Misfires Under Load

    Post the drive and transom serial numbers along with a pic of the ECM sticker. I can usually link an engine with that. Post the year make and model of the boat. I haven't seen any REC files posted. I personally don't know how to post them, I just know it can be done because others have done it...
  19. M

    2019 Volvo V8 380 C-M won't start unless i give it throttle

    Yes, finding a trained tech can be hard especially one that has the time to travel this time of the season. Might have to look at getting the boat to them. But I'm guessing you do need one. I don't know why this problem is showing up now. I have found most failures just happen. Ran good...
  20. M

    4.3 Mercruiser MPI Chugging/Surging and Beeping during turns/Waves

    I think you might be referring to a post I made on a Volvo Penta. Not all engines use this strategy. O.P. Didn’t post a serial number so at this point any advice would be a bad guess. I see someone has recommended a “wiggle“ test. I would never recommend this test on a running MPI engine. There...
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