Hey guys, I tried to search but I couldn't find an answer to my question so I decided to join the forum and post up for the first time (I have been a long time lurker). Anyway, I was wondering if the ECM/ECU in the Titan is Vin specific? Also, are there any differences among ECUs from one year to another? I have a 2004 Titan if it matters at all. Any info would be greatly appreciated. Thank you.
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