Today I decided to mess around with my edge OBD style programmer and uploaded the economy tune onto my truck. I had taken a trip on the highway the other week and wanted to see if I could get better then 16.5mpg. I started my truck and drove to work. It drove fine and started normal to me. After a few start ups throughout the day, I noticed that the WTS light was delayed, instead of coming on as soon as the key was turned on like it has been doing for the past 8 months I’ve owned this truck, it took about 5 seconds for it to come on. When the light came on, my fass lift pump also kicked on. I tried starting before the light kicked on and the engine would just crank. I feared the worse and thought my injection pump was going out, but it had been replaced a couple years ago, and I drive my truck very easy and on a stock tune with a secondary fuel pump. I was a little spooked so I changed the tune back to stock hoping that would fix it. It didn’t. After looking on these forums, it looks like the only answer is that my ecm is bad. I went to pull codes and got a p1694-no engine bus messages. I didn’t have any codes before I installed the tune this morning, but after I did these things have been acting weird. I’m not sure why this is happening, I have never had a problem like this. My truck has been working just fine until today. I’m not sure where to go from here. Should I just live with this 5 second delay on the WTS light? Or does the ecm have to be replaced? Can it be reflashed by the dealership? Can I reset it somehow at home by disconnecting the batteries? Any help would be greatly appreciated! Thank you

 

David

9 minutes ago, buzzman said:

 

No I didn't. Is the error code page somewhere on this forum?

 

Buzz

 

 

Mopar1973Man,

 

Wow, thanks for the link!

All the tools and information is here just gotta look around there is over 18 GB of web data here. 

Well, I got my rebuilt ECM back from Auto Computer Specialists and installed it about two weeks ago. It works great. No more WTS light delay. It was easy to work with them. Turn around time was about 12 days total.

 

Thanks to this forum for the help and recommendations.

 

Buzz

On 5/19/2019 at 6:28 PM, buzzman said:

Well, I got my rebuilt ECM back from Auto Computer Specialists and installed it about two weeks ago. It works great. No more WTS light delay. It was easy to work with them. Turn around time was about 12 days total.

 

Thanks to this forum for the help and recommendations.

 

Buzz

 What was the price on your ECM from ACS?   Where are they located?

56 minutes ago, GSP7 said:

 What was the price on your ECM from ACS?   Where are they located?

They are listed in the vendors section.