I need a little help with a P1211 fault code
I need a little help with a P1211 fault code in a 2002 7.3 Powerstroke engine.
I drive down the road, and the check engine light comes on. The engine loses power then the smoke pours out. I pull off to the side of the road and shut the engine down and wait about two minutes. Then I restart the engine, the fault code disappears for about ten minutes or when I go above two thousand rpms. When I came back to the shop where I work I put the scan tool on it. The fault code came across with a P1211.After checking the ICP I found oil coming through the center to the plug connector. I replaced the ICP sensor and cleared the code. I took it for another road test and nothing had changed. I limped it back to shop and this time put the scanner on it with the data stream. At an idle the ICP, IPR, % of duty cycle and the ICP voltage were all normal readings. I then took it out on the road. While on the road with the half open throttle I noticed the % duty cycle was going up and fast. At 53% the code popped on my scanner and on the dashboard. At 63% cycle duty I froze the frame on the scanner and have these results: Injector control duty cycle 63.1%
Injector control voltage 2.77 v
Injector control pressure 1979.59
I only have seen 2750 psi at the most on control pressure. Now my questions: What causes the injector duty cycle to peak so high and past the limit? I noticed when the check engine light came on noticed that the engine would miss for about 5 to 8 minutes, then smooth out. The Injector Control pressure at that time was at 490 psi. Iím ready to change the IPR control but I am wondering if there is a way to test this. Can a P1211 fault code come on if there is a loss of oil pressure down stream say in the injector area from a bad oring? There are no leaks outside from the lines or anything exterior that I can see. I donít like to play guessing games so if anybody out there has any info on diagnosing this please let me know.