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  1. ChrisCraftFan

    2000 Volvo Penta 5.7GSi PEFS still running rich!

    I used them first, sent my mefi to him and even bought his mefiscan software. He said the mefi was fine but now when I talk with him he says I should try swaping out a known good mefi to see if it fixes it. If I had one of those I would use it. What the heck??? What did he check? I spent...
  2. ChrisCraftFan

    2000 Volvo Penta 5.7GSi PEFS still running rich!

    I have been thru about everything I can think of including some great advice from this group! I am looking at the MEFI 3 now and wondering if it is somehow sending incorrect information to the injectors regarding pulse width. Has anyone had experience with John at Boats Unlimited? He seems...
  3. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    So here is a picture of my intake half way thru the resurfacing. I may have found my vacuum leak! I hope to get it back on this weekend, if I can get some time. Hopefully up and running again!! I again want to thank everyone for input. Its been of great value to me!!
  4. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    Update - removed intake this weekend. When I cleaned the gaskets all off and placed the intake on with no gaskets at all I could get it to rock a little bit across corners. (Diagonally) decided to take to machine shop to make sure it is flat and not warped/twisted. I did have to remove valve...
  5. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    I have not had time to work on the boat. I am thinking about replacing intake gasket this weekend. Watched a lot of video on vortec gaskets. Apparently the plastic ones are junk. Looking at the fel-pro problem solver gaskets. They have an aluminized steel carrier. everyone is raving about...
  6. ChrisCraftFan

    Should i replace the pickup coil?

    I guess my question should have been is there a difference in Volvo Penta's part and Sierra? Or do they both come outa the same China factory with a different label on it? I'm just worried that 21 years and nearly 700 hours has put a toll on it. Everything else has been replaced already.
  7. ChrisCraftFan

    Should i replace the pickup coil?

    Hello again! Looks like I may be needing to replace my intake gasket. Sooo I will have the distributor out. I was thinking of replacing the pickup coil while I have it out. its the last thing that has NOT been replaced in the ignition. Just wondering thoughts on replacing it. It is 21...
  8. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    I will plan to do all that testing. I am, however, pretty sure I have a vacuum issue. its at 16. Tracking down why has been my absolute nightmare. Also pretty sure the injectors are dumping too much fuel. (Black smoke) So probably slobbering when I hit it with the light. One one the...
  9. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    Just ordered the 57Gsi efi diagnostic manual. I should have it in a week I think. Meanwhile I will try an LED spotlight I have. Not 100% sure what I am looking for with the light though?
  10. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    Led lights or neon light? I have led flash lights but not neon. Maybe I can somehow justify a neon bar sign stating that ” I need it”.
  11. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    Mefi 3 Got a spare?.. sorry you are asking about the manual. My bad
  12. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    i guess I should get the GSI manual. Probably not the last time I will be searching for answers. LOL. With a name like slobber body this may be more like a lifestyle. Thanks to everyone I have a few things to check. I might not get to it until Saturday. Just too much going on. Sunday is all...
  13. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    Well he didn't "mod" the TBI just replaced gaskets, cleaned injectors and replaced tps and iac. I worked on many Quadra jets in my day. I think I still have one in my garage off of an old mercruser?? No way this is as complicated as that. There are no settings to it at all that you worry...
  14. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    oh crud bucket! I know there is not a code darn! I am looking for anything that will give me some light in the tunnel. LOL
  15. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    That is an interesting piece of information. what is the document you are using I may want to get one of those. I think i need to watch my scan carefully. Maybe knock sensor shows up momentarily when i mash the gas??? I didn't see it but I will look closer next time. I can record the scan...
  16. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    I saw other forums that highly recommend him as knowing TBI's well. He helped me try to diagnose and he seemed that he knew what he was talking about on the difference between Marine and Auto. Understanding the injectors are different and keeping OEM injectors is important if you can. Had...
  17. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    well SPR rebuilt my TBI. I looked around and he seemed to have the best reputation. Is there something I should know??? He also installed new iac and tps. Adjusted initial voltage on the tps. I will definitely run those tests next chance I get. Thanks!
  18. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    I m not sure rich or lean. Did not spend a lot of time with them. Started and ran a little. Surge was pretty bad so I pulled them.
  19. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    I will have to do my own compression test if I want the numbers. Knock sensor is new Volvo PENTA. I can see it on my mefi scan software and it’s not activating. Good idea on plugs. I think I read someplace that the wrong gap might cause low vacuum. Hmmmmm. They are not fun to get to but worth...
  20. ChrisCraftFan

    2000 5.7 GSi PEFS MAP sensor?

    In the many things I have tried I tried tj17’s. The engine just surged badly. I was lucky they took them back!
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