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  1. M

    V8 300 will not start showing fault MID 128 SID 5 FMI 14

    I feel your pain. It was once my job to have to tell people that, not fun. But, as I also told them. If you find that one place that can get you in tomorrow. Might want to stop and think, what is it that everyone else knows about this dealer that they aren’t as busy as everyone else? If you...
  2. M

    V8 300 will not start showing fault MID 128 SID 5 FMI 14

    Hard to say without knowing the engine serial number and because this is coming up as an MID 128 code, it is probably being displayed by the EVC system. So need to know what EVC system it's using. The EVC generated display won't show all codes, so it's always best to connect a scan tool to the...
  3. M

    2002 Volvo penta Gxi 5.0 beeping issue

    Here is a little summary of how the knock system works. This is some of the knowledge that trained techs learn. There are 2 different systems for modifying spark advance based off of knock sensor input for Volvo Penta MEFI 4 engines. The first is the knock system. It is active above idle after...
  4. M

    2002 Volvo penta Gxi 5.0 beeping issue

    im not sure what you mean by “can’t generate a signal”? Where in the manual did it ask to check the signal? what was the ohms? why are you buying a new connector? did it test bad? I have no idea if Amazon parts will work. I’ve had too many bad experiences with them to even think about them if...
  5. M

    Can Silent Shift be adjusted?

    It sounds like your shift linkage is adjusted right but maybe your throttle linkage might not be. Have you contacted your dealer about this? Most dealers who sold you the boat are happy to make adjustments like this for free.
  6. M

    Mystery Engine Alarm

    This is an easy and also complicated question. Easy answer is --- anything from the fuel in the tank to the propeller. Yes bad fuel or bad fuel delivery can cause an emissions fault. A badly damaged prop can also, as can anything in between. Crankshaft, pistons and or rings, any one of the 3...
  7. M

    Mystery Engine Alarm

    I have seen some weird things from Chaparral gauges. One of the last boats I worked on was a Chaparral with the trim gauge not working. Boat one month old, all the other gauges working. Troubleshot it down to the tachometer! Don't know what the flashing numbers mean, if they mean anything. Might...
  8. M

    SPN 701 FMI 3 Check Engine Alarm

    Thanks for the link, had never seen that before. I did very little work on Indmar products. I didn't check to see if it's right for other codes, but it works for this one. Might be something a guy like @alldodge would like to copy to his comp? Sorry, but disconnecting the sensor will set this...
  9. M

    SPN 701 FMI 3 Check Engine Alarm

    Thanks for the serial number, makes this much easier. I'm interested in where you found the SPN 701 FMI 3 to DTC 1511? I had to dig deep into one of my Volvo student handbooks to find that. EGC Diagnostics manual #7749393 covers troubleshooting for this code. Unfortunately they are using a...
  10. M

    SPN 701 FMI 3 Check Engine Alarm

    V8-300-C isn’t a valid model designation. It’s missing a letter or 2 maybe post serial number? SPN 701 isn’t fault code that Volvo uses, maybe check again?
  11. M

    VP 5.7 Gi-J three or 4 sparks only

    You’re welcome, happy to help when I can. I’m not aware of ignition bypass on any Volvo EGC engine. Yours doesn’t have it. I have some concerns about using the Jaltest software. It hasn’t received Volvo Penta approval here in North America. I’m pretty sure your engine should be outputting...
  12. M

    Propeller not spinning No FWD or Reverse

    This is all you need to know. Something is wrong in the drive. Time to pull the drive and find out why.
  13. M

    VP 5.7 Gi-J three or 4 sparks only

    "Does anyone know if this ecm uses the GM ignition bypass circuitry during start phase?" Not sure what your referring to? Like the EST ignition on MEFI engines? I can't help with the screenshot of the scope, never used a scope on these engines. But the waveform diagram you show in 2nd post is...
  14. M

    Volvo Penta shop manual

    https://www.volvopenta.com/en-us/service-and-support/your-engine/manuals-and-handbooks/
  15. M

    2002 Volvo penta Gxi 5.0 beeping issue

    constant horn = s.l.o.w. mode, has rpm reduction above 2500 intermittant horn just means active code, no rpm reduction Code 44 is knock sensor not seeing enough activity. If this engine sees too much knock it will NOT set a code, just reduce spark and fuel. It's not a very smart system. You...
  16. M

    Wonder if I should go IO again or go OB?

    Very few I/O's are sold lately compared to O/B's but I'm guessing that when catalytic converters start being required on O/B's (and that day will come) we will see the pendulum swing back to I/O's. I’m guessing that’s why Merc and Volvo are still in the game. That 400hp O/B has a very expensive...
  17. M

    Wonder if I should go IO again or go OB?

    I’ll use Mercury Marine because they make both I/O’s and O/B’s. So based on what they charge for their different products I can form an opinion on long term cost. Pretty big difference when you buy one new. 250 hp I/O msrp $15-16,000 250 hp O/B msrp $25-28,000 Merc sells what they call...
  18. M

    Wonder if I should go IO again or go OB?

    my two cents from 30 some years as a tech. I like both, but what's right for you depends on how and where you will use the boat. Just remember that new O/B's are a gift that keeps giving. Mercury Marine sets the price on extended warranties. They feel that outboards will cost double in repairs...
  19. M

    AQ131 dwell setting

    62° +/- 3° is correct for your engine with the original distributor and coil. Dwell is the number of degrees the shaft turns while the points are closed - thus, the number goes up as the number of cylinders decreases. If you didn't have specs, the rough estimate was (360 degrees/number of...
  20. M

    Penta 5.7 256 SSX wont start

    The "E. U." you picture is the Active Corrosion Protection control unit. It doesn't have anything to do with your won't start. There will be a sticker or plate on your engine that will list the engine model, spec number and serial number. This information will be needed to give you accurate...
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