International Maxxforce 10 (2010) error code TDC - SPN164 FMI 1

I want to see a pressure one. Also, the engine is running very poorly and you have active injector codes. I know you said you had them worked on, but maybe you need to replace them with genuine remans ones. Have you diagnosed the injector circuits?

 

Yep, you have an ICP problem. Your ICP desired is about 1200 psi. This is what the ECM is commanding. Injection control pressure is what it is actually measuring. If you notice at about 2 mins the icp starts to struggle to maintain 1200 psi and gradually drops off to the point the engine can no longer run. The reason it takes a bit to die is usually the oil has to get warm to hot then it gets thinner to the point that a weak pump can't pump it.

 

A new icp what? Sensor, pump, regulator?

 

I think you have a worn pump that can't maintain pressure when it gets up to temp and the oil become thinner. The only way to confirm this is to get it fully hot and then install a pressure gauge at the end of the high pressure line to dead head the pump. The internal pressure relief is about 4000 psi. You need to full field the IPR by supplying it 12 volts, (no longer than 30 seconds at a time or you will burn it out), then see what you get for pressure. A weak pump cannot push 4000 psi when hot. It will when cold, so this test can fool you.

 

The high pressure pump is bolted to the rear of the front cover at the front left of the engine. I'll attach a couple of pictures. The high pressure oil line runs from the pump up to the cylinder head. This is all sort of hiding in behind the fuel filter module. In the picture, the fuel filter module has been removed for clarity. To get access to the line, you have to take some of that off anyway, usually the intake throttle valve at least. For the high pressure line, it has straight threaded fittings with oring seals. You will need to go to a hydraulic shop to get the proper adaptor fittings, or have a separate test high pressure hose made up long enough to see the gauge as the one on the engine is short and very stiff. We had a nice long test hose made up with 10,000 psi gauge at one end the proper fitting at the other end to thread onto the pump. Make sure your hydraulic hose is rated for 5000 psi or better. The IPR, or injection pressure regular is the solenoid valve at the bottom of the hpop. To properly full field it, you need the proper pigtail connector to plug into it too. I'll attach a picture of the ipr. Early valves had the connector right at the valve, later ones have the connector glued with a short pig tail with a different connector, so you need to see what you have there to determine what connector you need. To jump the ipr you only need 12 volts on one pin , ground on the other. Polarity doesn't matter. This will command the pump to pump full pressure. Again, the ipr isn't meant to be jumped with full power under normal use, so do not leave it connected for longer than about a minute. 30 seconds would be better because you can burn out the coil.