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Old 02-08-2011
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ecm question

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
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Old 02-08-2011
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Hasn't "worked"? What result were you expecting?
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Old 02-08-2011
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You can't reset your ECM. it needs to be reflashed.
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Old 02-08-2011
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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.
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Old 02-08-2011
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Right, you can't officially "reset" it. but you can erase codes and how it learns.
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Old 02-08-2011
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i was tryigng to reset the timing on my truck
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Old 02-08-2011
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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.
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Old 02-08-2011
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sounds like a timing issue might be caused by a timing tensioner i had a issue on a 2002 the tensioner was going out
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Old 02-09-2011
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There's no tensioner in his 3.0L.
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Old 02-09-2011
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i am new to the small truck i am used to diesel super duties
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Old 02-10-2011
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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?
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