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  1. M

    Engine Swap Over - First Oil Selection

    Volvo wants mineral oil for the complete break-in. No synth for 20 hrs
  2. M

    ECU pinout/wiring diagrams ???

    Volvo tech support can decode those ECM #s. "The ECM monitors the amount of voltage coming from the tachometer and sets DTC 2618 (or 2619) if the voltage is outside the set parameters" That's kind of a typo in the manual. It isn't there in later manuals. It doesn't really monitor voltage...
  3. M

    FWC V8-300-C-A

    Yup, but keep an eye on the level.
  4. M

    Catastrophic Engine Electronic Failure?!? Diagnosis Help!

    https://www.rinda.com/rindashop/ Suggest Diacom for your shop. If you want to charge customers to repair EFI sterndrives ----- you NEED this. The service manual that explains operation and troubleshooting can be found at...
  5. M

    Verado Power Steering Problem w. Video

    When this boat lost steering, it should have set one or more codes that would display at the helm. Those codes might help determine if this problem is simple or complex. But because of how complex these engines are, most likely you will need to have a Mercury dealer diagnose it. Here is my...
  6. M

    ECU pinout/wiring diagrams ???

    Do you have any wires connected to pins #25 and #26? Based on the screenshots you posted, these pins aren’t used in this application. I’m just guessing here about those pins. But that circuit is probably there to provide the option for cruise control. The last 2 screenshots deal with the tach...
  7. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Having been a dealer tech for many years, I have to defend them some. Generally when you call a shop you don't talk to a tech, our time is to valuable to spend on random phone calls. You will get a service writer or at best the service manager. These people usually don't have a lot of technical...
  8. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Just something that stood out. It's hard for me to look at the recordings without being in the boat to know water conditions and how the operator is using the boat. Also, sometimes people will post 2 recordings without telling us they changed something between them.
  9. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Yes I see a vast improvement. If you look at the KS voltage they are now very close to each other. Before KS 2 was much lower than KS1. I’m pretty sure the soft warning was due to KS 2 voltage falling below 0.1 volts. This was latching and unlatching so fast it didn’t meet the requirements to...
  10. M

    2005 Chris Craft with 2 impellers overheating

    I worked for a Chris Craft dealer back then, That's a drop dead gorgeous boat. First year of them at the boat show, sales put one out on the point and everybody stopped and drooled. We sold every one we had on order. I was a twin engine boat tech so I didn't get to spend anytime in one until the...
  11. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Thank you. I give you and @tpenfield (and of course the other mods) a lot of credit for the time you folks spend trying to help. I only hope no one takes offense when I chime in on things I think are wrong. Without people like you this forum would be filled with bad information.
  12. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Just reread my posts --- surprised I couldn't edit a post after 1 hour, might be something new, thought I used to be able to ---- sorry for the rant in the second one. But in the one I offered actual advise. I was wrong on the KS needing 15 ft.lb. oops should be 14 ft.lb. probably doesn't matter...
  13. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Talking to techs that are still in the business, they tell me it's still getting worse. Most of the techs I worked with got into being a mechanic because they had good aptitude at taking things apart and putting them back together or were like me --- wanted to have a car but couldn't afford to...
  14. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Unfortunately the engine serial number doesn't work like a VIN does. Your boats HIN -- hull identification number -- kind of does, but doesn't include any engine or drive info like a VIN does. The partial serial number you supplied does tell us that you have an "early" -J model. The serial break...
  15. M

    ECU pinout/wiring diagrams ???

    Yes can get very complex. Sometimes the only way is to talk to Volvo tech support. I do know that just because 2 ECMs look the same doesn’t mean they will have the same pin outs. I have had brand new engines that exhibited this same symptom. I found that 2 of the pins in the ECM plug were...
  16. M

    ECU pinout/wiring diagrams ???

    Sure, just go to. https://www.volvopenta.com/your-engine/manuals-and-handbooks/ And input the serial number. This information is usually found in the diagnostic manual, and/or the wiring diagram manual.
  17. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    At this point, no. I haven’t seen anything that would lead me there. But we don’t know exactly what engine you have. Also haven’t seen enough data on the TCP/TPS to say good or bad. What we have seen looks good. This thread has brought up a point that I wish more people were aware of. To bad...
  18. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    Unfortunately no, it’s copyrighted.
  19. M

    2008 Chaparral 275 SSI 8.1 Volvo Penta GXI-J Soft Alarm Issues

    That's EFI Repair not Diagnostics and while it's a good manual to read because it covers a lot of basics that you need to know. You will need 7749393 because that covers the actual diagnostics. Also you might want to contact Rinda because 7743614 has been updated to; VPA 7743614 English 03-2016...
  20. M

    Engine problems while on vacation

    Sorry I missed this but I've been busy. SPN 924 FMI 5 is a check engine light problem. Does the red light on the engine status panel (it's a ! inside of triangle that's inside a circle) light up when you first turn the key to run? SPN 4238 is missing the FMI (can be a 0 or1) (you might need to...
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