P0205 DTC on a 99 Durango
So let me start this from the beginning.... 1999 Durango 5.9 4x4, started getting a intermittent misfire, and threw code P0305 (cylinder 5 misfire). So I did plugs and wires, and it ran perfect. Next day I did an oil change, started it up, and it ran like pure ****. So I did the cap and rotor. Still ran like crap. I cleared all codes and let it run a little while, and then it threw codes P0205 and P0206, injector circuit malfunction cylinder 5 and 6 respectively.
So here is what I have done so far:
While it was running, I pulled injector clips off one at a time and put a test light on the hot side to make sure it was getting power, which they all were. Then I used my multi-meter to see how much power I was getting, and while it would fluctuate, they would all stay around 10-13 volts... seemed good, all clips were getting the same amount of power. Next I checked resistance on the actual injector with everything off, and each injector got about 13.75 ohms. Also seemed good. Just to cover bases, I took valve covers off and checked for broken or fractured valve springs, and those all checked out good too. I wasn't able to push on the rockers and compress any springs by hand so I'm guessing they are good for 150k miles on the ticker. So what do I do next? Do I pull all my fuel injectors out and get them flow tested/spray pattern tested? Or should I find someone with a similar truck and try their computer out to make sure my computer isnt failing?
Some other questions:
What other computers (from what other dodge trucks) will work in my 1999 Durango 5.9? Are computers plug and play, or do they need to be programmed to my truck by a dealer? What else can I do to fix this horrible misfire?