Jwirth

well, this dog bit me. Swapped a 2002 into a 1999 53 block. The engine seems to run good except for the fact not working. I have not test driven it yet. Are there other performance problems I can expect?

I had a similar problem after installing my Wells APPS. First, the splicing and cutting you are talking about is the ATS fix which by-passes the ECM. I undid that fix, but did keep the splice to #4, black/yellow, on the APPS to ground. I sanded a good ground to the body where a ground wire from the battery connected and replaced the terminal end. I think that ground put me over the top on a torque converter lock I have been fighting for a year. After I installed the Wells APPS and tried the setting voltage myth, my idle was over 1100 and I had a reoccurring dead peddle. To fix it I readjusted the APPS for free travel, the middle of the torx screw slots and forgot about the voltage. I disconnected the batteries, again, for over 30+ minutes. I reconnected them, turned on the key, pressed the peddle to the floor and back up slowly, and started the engine. My idle went to 850 and I have not had a dead peddle again. In short, I suspect you need to clear and reset your APPS memory by disconnecting the batteries. The only other issue could be if someone has jacked around with the idle screw and it is not reaching the idle signal of the APPS. All the accelerator peddle controls on the engine is the APPS. Lastly, listen to Mopar1973man over me. I know what I did, but he knows what he is doing.

You keep making me want to kiss you. Someone had made the ATS modification to mine, so I unmodified it. I did keep the jumper from the APPS to the battery ground at the body. I figured adding an additional ground could not hurt. I also sanded the ground...again... which I suspect was the true cure for my torque converter lock problem. After a year of chasing the problem it is fixed and I love my Cummins again. I could kiss it.

So what's your take on cutting wire #23 on the PCM and running a jumper wire from the APPS to the PCM to bypass the ECM?

THANK YOU! THANK YOU! THANK YOU!, I kept looking at the instructions and all the internet voodoo and thinking that it made little sense. I had installed a Wells APPS and it resolved the original problem, lose of power and surging, but I traded it for a new problem, dead peddle. When I first installed the APPS, the idle was 1100 and a reference voltage of .38 key on or off. (Wells instructions says the voltage should be .5 to .6 volts.) After reading your article I remounted the APPS and checked for free travel an disconnected the batteries for 1/2 hour +. I reconnected the batteries and reference voltage on #3 with key off was 0 volts. Key on the reference voltage on pin 3 read .55 volts. I cycled the accelerator peddle one time with key on, started the engine, and it idled 800 RPM. Test drove it with no dead peddle incidents. If you would shave I would kiss you!