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Old Sep 21, 2022 | 07:21 AM
  #1  
nathan reynolds's Avatar
nathan reynolds
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Hydra?

I recently bought a new 2002 f250 it came with a hydra chip in it, a few days ago the ECM went bad and I replaced it with a 2001 f250 ECM until I get my new ECM in, am I able to reset my hydra chip to program to work on the 2001 or can I just put my chip into the 2001 ECM and will it work?
 
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Old Sep 21, 2022 | 09:35 AM
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From: Butler, OK
I don't understand the nuance of it, but different pcms have different codes.... if I understand correctly the hydra is not specific to a singular pcm, but IS specific to the code type... so the answer would be "maybe" you can run it, if the code matches. Better minds should come along to correct soon.
 
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Old Sep 21, 2022 | 11:45 AM
  #3  
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You need to get the PCM code, then using the Hydra flash software you can find the hex code & download library tunes from PHP.
 
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Old Sep 21, 2022 | 02:59 PM
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A 2001 pcm will not function properly in an 02. The 02 has a different electrical system and pcm pinout
 
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Old Sep 21, 2022 | 04:26 PM
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cleatus12r
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It'll run and drive. It's not a permanent fix by any means.

The charging system won't work, the water in fuel light will be on, and you'll end up with a flashing TCS (overdrive "off" light) due to a P0500 because the ABS module won't talk to the PCM.
 
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