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[ArrowHeadJim]

With the 10k mod the presure can go high enough to throw codes. You may also get the turbo presure high enough to throw an over boost code. If you search you can find a 10k mod with a series of diodes. That mode will allow the truck to idle with out the rumpity rump you could experience with some values of resistors. The diodes also allow small inputs from the throttle with out the oil preasure going up. But at partial throttle the preasure will rise and give better response at lower throttle settings. This mod also seems to affect the transmissons shifting. I run an ajustable version with a shut of switch. The affects on the transmission at high settings are not what I would call desireable. You have to also watch the exhaust temps as you are fooling the pcm into believing all is good in the injector department to a point. You can over boost and over preasure. So be careful and have fun. An easy test to see how it works is to use thin solid wire like wire wrap wire used in electronics. Attach to the resistor, insulate, and pull the IPC plug and tuck the assembly in to the appropriot contacts and reconnect the connector. Give it a test drive. Adjust to you likes. Or remove and toss it in the circular file.