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  1. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    As I recall, it was about the same as the port engine at 17.
  2. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Both motors will run indefinately at about 1200 RPM, with the TPS unplugged. Both motors return to normal RPM once the TPS is plugged back in, but then stall out seconds later. Both throw the TPS code when it is unplugged. The port continues to throw the MAP code when it dies. The starboard does...
  3. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Here are the scans from the starboard engine. It is behaving exactly the same way, only it throws code 22 TPS when the connector is plugged in and the engine is running. Is it possible the TPS is defective on both engines? Could the ECMs on both engines be bad? Here is a video of the engine...
  4. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Here is some more info. With the TPS unplugged, the engine will continue to run, however the RPM is at about 1250 and will not drop lower. While this is happening, the MAP sensor voltage is at 1.5V. Of course this throws the TPS code, but there is no code for the MAP sensor. Does any of this...
  5. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    With the key turned to on, [engine not running] unplugging the other sensors, did not allow the voltage to increase at all. It stayed at 4.76V. Unplugging the map sensor dropped the voltage to zero, and threw the code again. Still puzzled. Just to clarify, I only saw the 2.55 V when the engine...
  6. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Here are two scan pictures, both from the port engine. First is with the engine off, the second with it running. Second one shows a MAP code, despite having a brand new map sensor installed. The engine stalled just after the second picture was taken.
  7. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Working on the engines again today, and have a bit of an update: Once the engines are warmed up while running on muffs, both engines eventually end up stalling. Unplugging the MAP sensor, IAC sensor, or the PVC line, will not allow the engine to keep running indefinitely. If I pump the...
  8. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    I am using Diacom scanner software.
  9. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    So after running both engines again, only one has the continuous fault code 34. The second engine will still not run more than 10 seconds or so though.. Acts like it is starving for fuel shortly after startup, and dies. There are no common wires between the two engines, except for a ground wire.
  10. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Code 34. I have not been able to find any vacuum leaks. Yes, both engines show the same code.
  11. 3

    2001 Mercruiser 5.7 TBI Won't Keep Running

    Can't keep the engine running, and I'm stumped. New cap, rotor, wires and plugs. Engine fires up right away, sounds normal for 30 seconds to a minute, and then hestitates, chugs and stalls. Fires right back up again to do the same thing over and over again. Engine scan shows a code for the MAP...
  12. 3

    1985 Chris Craft Scorpion 266

    Hi Folks, Does anyone know where I can obtain an owners manual? Thanks!
  13. 3

    Avon Stern Light

    The dinghy is rated for up to 40HP, and with 5 adults in it, it will likely need almost every one of those ponies to get up on plane. :) Thanks for the link. I will give them a try.
  14. 3

    Avon Stern Light

    Hi folks, I recently bought a used Avon 360, with a 40HP Yamaha outboard. Seems to be a really nice dinghy! The stern telescopic navigation light [goes up and down on its own when you turn the lights on] is not working. I had a quick look at the mechanism and it is toast... I've looked online...
  15. 3

    2006 Merc 8.1

    Thank you!
  16. 3

    2006 Merc 8.1

    Hi guys, Where can I find a wiring diagram for a 2006 8.1? Service manual 30 does not contain one. Thanks!
  17. 3

    2006 Mercury 15HP 2 Stroke / No Fuel Flow

    For some reason there seems to be a restriction where the fuel enters the carb. There is plenty of fuel at the carb, [the fuel bulb on the hose is rock hard with pressure] but fuel will not enter. Even after removing the float and needle from the carb, there appears to be some kind of blockage...
  18. 3

    Sierra U-joints 18-6406

    This U joint comes with 3 different sets of retaining clips. How does one know which set to use? Also, there is a note in the box saying to make sure the sharp edge of the clip is positioned away from the bearing cap. Maybe its my eyes, but both edges look the same to me. Thanks!
  19. 3

    Volvo 4.3 Timing

    Can someone please confirm the ignition timing on a 1999 Volvo 4.3L GS? I believe it is 1 BTDC using the 4 pin connector in the Delco distributor? Thanks!
  20. 3

    Mercruiser 5.7 Alpha 1 Overheating

    Hey guys, I am just about at my wits end here with an overheating issue, on a 1988 5.7 Alpha running on muffs. The drive has been resealed with new water pump assembly, and I have LOTS of water flowing at the thermostat housing connection from the drive. I have checked the thermostat housing...
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