Okay I am on the same page with you now, the PMD is an aftermarket injection pump cam signal sensor, need to ask you a few more questions was the trucks surging before you installed this aftermarket PMD? How was the truck running when it had the original injection pump cam signal sensor? Or do it just not run anymore so you replace it with the PMD? The reason I'm asking you these questions is you may have a defective PMD, or a wiring harness going to it. Also make sure the wiring harness has not been damaged by heat or that you are running the wiring harness to close to possibly the glow relay or other electrical components that may cause it to malfunction. Furthermore get back to me and give me a little more background on when it started and what you did before it started and after.
Tuesday, July 28th, 2009 AT 8:08 PM