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Recent content by TorchHypnosis

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    2007 International 4300 Durastar no power on freeway

    That's actually exactly what I did. Only I was getting weird back pressure readings from my live data so I opted to drill a hole just before the muffler and tap a mechanical pressure gauge in. I was reading 20 PSI at 2000 RPS under no load in neutral, which is more than 10x what it should have...
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    2007 International 4300 Durastar no power on freeway

    To all you folks experiencing weird turbo issues on your 06-07 4300 series with a DT466, the issue turned out to be a plugged cat. I did not know there was a catalytic converter INSIDE the muffler. It wasn't until I drilled a hole right before the muffler and inserted a 0-15 PSI pressure gauge...
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    2007 International 4300 Durastar no power on freeway

    That's the plan. I figure there are no sensors after the turbo outlet, so about the only thing that will happen if I remove the catalyzing muffler is a slight drop in backpressure. I'm 90% certain that it should still function correctly without it. Hopefully the engine doesn't rely on a...
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    2007 International 4300 Durastar no power on freeway

    Okay, sorry for so many posts...was trying to order a new muffler, and while taking measurements, through the rust I could read a stamp...."CATALYST". Looks like it is a catalyst muffler. That explains a lot. Now I'm almost certain that's the culprit. As tempted as I am to cut the thing off...
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    2007 International 4300 Durastar no power on freeway

    BTW I observed an interesting anomaly just now...I left my diagnostic scanner plugged into the OBD port overnight by accident, so I decided to put the cap back on the fuel filter housing to make sure it still would start(not sure if the scanner turns on auxiliary systems on the can bus while...
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    2007 International 4300 Durastar no power on freeway

    Hi Mekanik...I opened up my fuel filter housing and noticed some gunk in the bottom...I have driven it less than 200 miles(and that's strictly for diagnostic purposes) since I replaced the fuel filter and cleaned the housing. Not sure how that stuff got in there. Also, I'm not sure how to...
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    2007 International 4300 Durastar no power on freeway

    Mekanic...oh wow! Yea, I thought those numbers seemed a bit high. What I did was drill a hole in the exhaust right before the muffler and tapped a 0-15 PSI (not PSIG) pressure gauge into it. I did not see an o2 sensor or EBP sensor between the muffler and the turbo outlet, which is why I had...
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    2007 International 4300 Durastar no power on freeway

    Thank you Mekanic! I did clean out everything inside that fuel filter housing when I changed the fuel pump...but I don't think I did anything with that #6...I will check first thing in the morning. I will print out all the docs you attached. I just got done performing an exhaust back pressure...
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    2007 International 4300 Durastar no power on freeway

    Okay, could not find what normal back pressure is online, but I did notice that the backpressure jumped from 7.75 up to 12.6 PSI when I turned off the engine. I would think backpressure would go to zero with the engine off. I think I might drill a hole in the exhaust and insert a pressure...
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    2007 International 4300 Durastar no power on freeway

    Okay everyone. Got the truck back from RWC group truck dealership in Tacoma WA, can't say I'm impressed, but I am not surprised. They quoted me $690 for the diagnostic. So I dropped it off with them to perform it as I was at my wit's end. Their diagnostic was EGR valve not closing, muffler...
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    2007 International 4300 Durastar no power on freeway

    Aah...thanks for that cfherrman.
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    2007 International 4300 Durastar no power on freeway

    I keep finding posts like this one for my the exact model of my truck, which is why I'm thinking more and more the EGR valve might be causing this SID146/FMI7 (354) code: Exhaust gas flow can be regulated depending on required exhaust back pressure for engine speed and load. As demand for EBP...
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    2007 International 4300 Durastar no power on freeway

    Couple questions: cfherrman When you say if the engine runs like a 6.0 is that a unit of measure for boost? If not, could you clarify? Coaldust: What strainer are you talking about? The one under the fuel filter/water separator housing? I dropped the truck off at the dealership yesterday...
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    2007 International 4300 Durastar no power on freeway

    cfherrman, we have a scanner that can read live data. That was how I could get rid of 13 of the 14 original DTCs. But thanks for the suggestion though! That was the first thing I did.
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    2007 International 4300 Durastar no power on freeway

    UPDATE: Finally got the truck back from the second shop after they kept it for over two weeks and did nothing. When we dropped it off they said it just needed programming. The next day they said the turbo was not programmable as there was no programming port. They also said the actuator arm...
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