how do you reset the ecm? i have tried taking the terminals off, tapeing them together, and taking just he pos off, and it hasn't worked

 

Hasn't "worked"? What result were you expecting?

 

You can't reset your ECM. it needs to be reflashed.

 

The PCM can be reset in the sense that trouble codes can be erased and PCM "learning" can be erased and reset to default values.

Removing and touching the battery cables together will definitely reinitialize the PCM. I wonder what the OP was expecting to see that didn't happen when this was done.

 

Right, you can't officially "reset" it. but you can erase codes and how it learns.

 

i was tryigng to reset the timing on my truck

 

The PCM learns things like adaptive fuel control, IAC values for idle speed control and adaptive shift scheduling for automatics. The PCM does not learn ignition timing. It adjusts timing continuously so there's nothing to reset.

 

sounds like a timing issue might be caused by a timing tensioner i had a issue on a 2002 the tensioner was going out

 

There's no tensioner in his 3.0L.

 

i am new to the small truck i am used to diesel super duties

 

Hey Mogley. What's the original complaint? There are some known issues that cause 3.0L detonation. Before we start down that road, is the problem detonation or something else?