Logo
FULL SITE MENU

Recent content by gofastpilot

  1. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    I swapped the modules and for some reason no codes came up. But that doesn't mean anything. The sick engine could still be the cause of the faults.imo
  2. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    This down on power engine has been bugging me. Compression check revealed it. Cylinders 3 and 5 show 10 psi. all others 180 psi consistantly. Time for head gasket job.............
  3. G

    Life span of TBI's and sensor components

    Is 1000 hours still considered "young" for stern drive engine ? I know this depends on how it was treated and maintained but let's say a pair of 5.7 EFI's sitting in a heavy cruiser that rarely leaves the dock, gas sits in the tanks for a whole season, engines get run once a month for a...
  4. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    Stay tuned I'm going out today to see if anything changed.
  5. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    Problem solved with code 42 and 43. Inside what Mercury calls the wiring box mounted to port side of engine elbow I found a disconnected weather proof plug from what is beleived to be knock control module . Don't know how this became unplugged but I cleared the codes and rescanned cleared. So...
  6. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    Interesting? Info from my Techmate manual says Thunderbolt V 1st gen introduced in 1993 provides spark control from its processor. But in 1996 and again 1998 newer versions with more data collection were introduced. My engine has MEFI-1 and its a 1997 but MEFI-2 came out in 1996. Why wouldn't I...
  7. G

    1996 - 1997 350 efi ingnition modules 6 variations?

    I get it.......... that Mercury needs to improve product but between 1996, 1997 and 1998 there are 6 different ingniton modules with different part numbers for the 350 EFI platform. I have a 1997 350 efi thats throwing 42 and 43 codes from the MEFI-1 ECM. Question is will a module that's not...
See more
Back
Top