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    Need Help on 5.8fsi Couple of Issues

    I wanted to say THANKS to alldodge, Chrisin and EVERYONE ELSE. So the problem was and I don’t know how this happened but I had 2 low pressure pumps hooked up. I have been chasing this for 2 years. Replaced the Hi pressure pump and star d right up. I just wanted to say thanks to this forum and...
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    Need Help on 5.8fsi Couple of Issues

    Oh and I wanted to Add I checked the wiring to the Map sensor. I got 5v with KOEO.
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    Need Help on 5.8fsi Couple of Issues

    Ok some progress. Changed out TPS, IAC, and MAP sensor. Boat will stay running if I spray carb cleaner in the arrestor and idle at 700rpm. Then if I stop spraying it will stop. So there first I think off is fuel. But the map sensor I got is from AutoZone and it is part number SU208 which is...
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    Need Help on 5.8fsi Couple of Issues

    Chrisin. I got the intake to final seal up. Using Felpro gasket.
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    Need Help on 5.8fsi Couple of Issues

    Alldodge. So the TPS was changed due to code 63. The map sensor was changed due to code 22. Now the thing won’t idle. Before the parts. I can disconnect the map sensor entirely. It would run smoothly but idle at 1000rpm. I am seriously at a loss. Good thing is was able to get the codes out of...
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    Need Help on 5.8fsi Couple of Issues

    I’m not sure. It seems the lower intake doesn’t want to seal. I redid it yesterday just the plenum so I’ll let you know if I have any other leaks.
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    Need Help on 5.8fsi Couple of Issues

    Well got two vacuum leaks again. Redid the plenum gasket again. Chrisin is right about these not sealing up
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    Need Help on 5.8fsi Couple of Issues

    Chrisin I found out I had an intake leak upper to be correct. I redid the upper gasket yesterday. Like I said now I am running great no vacuum leaks but I have the MAF unplugged and my idle is at 1300 rpm. You were correct about the upper intake leaking.
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    Need Help on 5.8fsi Couple of Issues

    Updated? Replaced the throttle body gaskets. TPS, and redid the gaskets for the IAC on throttle body. Boat ran but was surging. But was running with all sensors hooked up. For the hell of it. I unplugged the MAF and wow it ran beautiful. No missing, stalling, or anything. Except it has an idle...
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    Need Help on 5.8fsi Couple of Issues

    Update. Checked out the hi pressure pump and put 12 volts to it. It works as well. It took some time with turning and priming the pumps and finally got fuel out of both pumps. Still started and died. Well I said wth I took the carb/choke cleaner while it ran because I thought I heard a vacuuum...
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    Need Help on 5.8fsi Couple of Issues

    I just gave the constant power to the low pressure pump only. I will check for loss of spark later tonight when I am able to get out there. It’s Texas and it got hot fast here. Thank you alldodge, dubs, and everyone else who is trying to get me back on the water.
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    Need Help on 5.8fsi Couple of Issues

    Did some progress on the boat tonight. Bypassed the boat’s tank to a 2 gallon tank. I can see the fuel being pulled to the pump. Boat still starts and runs for 3 seconds and dies. My fuel pressure tester broke so I can’t get a reading. I also hooked up 12 volts directly to the pump while it was...
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    Need Help on 5.8fsi Couple of Issues

    I have had this issue for years. Changed both fuel pumps hi pressure and low pressure. Spark plugs, wires, cap and rotor, fuel pressure regulator, and coil. The boat starts runs for 3 seconds and dies. Screen in the tube in the tank. Checked out to be ok. AllDodge was helping last year. Also 2...
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    Help on Volvo Penta 5.8 FSI OMC Cobra starts but won’t stay running

    I have a 1996 Chris Craft with the Volvo Penta 5.8 FSI EFI injection. I have had this issue for years. Changed both fuel pumps hi pressure and low pressure. Spark plugs, wires, cap and rotor, fuel pressure regulator, and coil. The boat starts runs for 3 seconds and dies. Screen in the tube in...
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    Need Help on 5.8fsi Couple of Issues

    Hey guys, I have been a lurker for some time and since reading through many posts I can’t find exactly what my boat is doing. I’ll try to be as clear as I can. My boat. 1996 Chris Craft Concept 230 w/5.8 FSi. Sticker plate says OMC COBRA Volvo penta 58FCPNCA ended up pulling manifolds and...
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