Have Torque App Values NO Hot Start P2285 Trouble Code
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Have Torque App Values NO Hot Start P2285 Trouble Code
Please help me.... I have the Torque app as recommended and now am ready to see if I can solve this problem. On cold start, fires right up. On hot start will crank forever and not start. Sit for a few hours, fires right back up. It does have the P2285 trouble code. Would this make a NO Hot start condition? If so, can someone explain the sequence that makes it start cold, but not hot? I'll jump right in, but before I tackle the ICP, I want to make sure this could be the culprit. Thanks to everyone for looking and replying if you have any info. IPR between 25-85 running, 14.7 key on cranking at 43. FMP 48.5. HPOP is 1300 cranking. Just now tried to start it and oil temp is 154.6 and coolant temp145.4. When I started it earlier after sitting for 4 hours coolant temp and oil temp both at 93 degrees it fired right up. Is it possible or likely that the engine temp would make the difference? Thanks
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From: Ball Ground
Sounds like a high pressure oil leak, could be any number of places under the valve covers. Injector top o-rings, dummy plugs, STC fitting just to name a few. Did you try unplugging the icp sensor and cranking it?
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From: Ball Ground
That trouble code is low ICP circuit voltage if I remember correctly, and I think that the code could have happened during the long hot start you attempted. It wasn't getting its 0.8 volts it needed to make it happen. Maybe someone can jump in and back me up because I am not a professional mechanic but I have had your same symptoms before.
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From: Ball Ground
Your oil is thicker when cold and won't evacuate wherever the leak is as fast so the HPOP will build just enough pressure to crank, when the oil is hot it just slides right on through wherever the leak is.
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I sure appreciate the link. I have not disconnected the harness off the ICP yet, that's next. So I guess the question in what are the places the leak could be?
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From: Ball Ground
The only quick way I have found to locate high pressure oil leaks is to purchase the hose from accurate diesel, with their tool you don't have to have something to command the IPR to open; you remove the IPR valve and the tool from accurate diesel threads into where the IPR was on top of the HPOP. You hook shop air to it and open the valve, give it at least 5 minutes and then you can hear the leak (air rushing out) and locate it. The leak could be from Dummy Plugs, stand pipes, branch tubes, end caps on oil rail, oil rail nipple orings, or the injector orings on the top where the oil rail pops in.
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