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  1. M

    Axius repair on used boat Cobalt 303

    I’ll try to answer your questions, but I should tell you I don’t have a lot of experience with G3. It came out many years after I had become MerCruiser master certified and I rarely used it in the field. Most of my time spent with it was in the classroom. The dealership I worked for back then...
  2. M

    2004 5.0 OSI-EF not going over 3000 RPM

    your engines each have two sensors for temp and oil pressure. one for the gauge and one for the computer. slow is controlled by the computer. might need to scan the engine
  3. M

    Options/Tools for CEL/DTC on Volvo Penta EFI

    See my too lengthy reply to your other post. https://forums.iboats.com/threads/options-tools-for-cel-dtc-on-volvo-penta-efi.766300/
  4. M

    Options/Tools for CEL/DTC on Volvo Penta EFI

    You don’t say exactly what engine you have, so this is just general information. Easy connect will read some codes, but not all. It wasn’t designed as a diagnostic tool, it’s main purpose is to do what you already have plus if you want, you can share the data with a Volvo dealer. Rinda...
  5. M

    2004 5.0 OSI-EF not going over 3000 RPM

    Probably not. Do you have two gas tanks or just one? Some twin engine setups will set Engine Protection Mode in both engines if one goes into it, if your boat has the master/slave cable installed. But you will usually get a warning horn if Engine Protection Mode is engaged. Do you get the 2...
  6. M

    First start of season, how long for water from impeller?

    Yes, this. When you prefilled the system you probably didn't get much water in the block because the thermostat was closed. Getting the RPMs up to 1500-2000 helps speed things up and is important for those that have an engine mounted raw water pump (you don't, yours is in the drive).
  7. M

    Axius repair on used boat Cobalt 303

    It's possible that you have repaired this problem, just that you/your mechanic didn't follow the proper process. Manual 8M0098996 OCTOBER 2016 MerCruiser Axius You really need to read this manual. It contains a lot of information that IS required to correctly service this system. This manual...
  8. M

    Axius repair on used boat Cobalt 303

    I haven’t looked at the service manual but I seem to remember something in class. I’ll see if I can find me notes from back then.
  9. M

    Axius repair on used boat Cobalt 303

    Oh Ya, I'm pretty sure that's probably the only option. But the people there at tech support who have access to the needed information won't talk to the consumer. They will only talk to someone who has a CDS G3 and the only people allowed to have G3 is a dealership tech. silver_power won't be...
  10. M

    SERial number and manufacture date

    Manufacture Date: 06/19/1984
  11. M

    Axius repair on used boat Cobalt 303

    If the engine is in guardian it will set a fault code. Because Diacom didn’t show a code means that most likely it was a Axius code. Diacom isn’t very good with Axius. This is why Mercury G3 is needed and where G3 is connected is also important. When troubleshooting Axius plugging into the...
  12. M

    Axius repair on used boat Cobalt 303

    This Is new information to me. I’ll need some time to think about it.
  13. M

    Axius repair on used boat Cobalt 303

    I'm sorry but I can't seem to understand what you have posted here. Maybe I'm looking at the wrong manual but when you say ---- "There is also no co nection between D pin(TVM connector) with A1 pin." When I look at pin A1 at the PCM connector it's the "wake up power" that comes from the key...
  14. M

    Axius repair on used boat Cobalt 303

    Interesting, do you have the pin numbers or wire colors?
  15. M

    SPN 701

    Yes, trim sender or wiring. DTC 1511 Trim Sender Voltage High (SPN-701 FMI-3)
  16. M

    Axius repair on used boat Cobalt 303

    Bulletin 2011-02R3 your mechanic can get it.
  17. M

    Axius repair on used boat Cobalt 303

    I recognize that the literature on this MercNET website is protected by copyright law and is intended for the use of authorized Mercury Marine contracted businesses and for the purpose of servicing and maintaining Mercury Marine products for customers. Any copying, distribution, or resale of...
  18. M

    Axius repair on used boat Cobalt 303

    Yes, this looks like what’s in the PCM 555 manual. For a full wiring diagram on this engine and its interface with Axius you will need a wiring diagram binder that MerCruiser sells. It is a very nice book, large pages that are laminated and full color. your mechanic should have access to it.
  19. M

    Axius repair on used boat Cobalt 303

    Yes, that was a copy and paste of the link I use to look at service manuals.
  20. M

    Axius repair on used boat Cobalt 303

    This information comes from a dealer tech website. I only know how it works in the U.S. but I thought any tech registered with Mercury Marine can access it. They call it "MercNET"
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