93ECU Identification

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A couple of questions about ECU. I have a 93 FZJ80 with ECU # 89661-60220 in it and a parted out 94 with ECU# 89661-60170. Can anyone tell me the difference between the two and are they interchangable? MY 93 has factory lockers don't know if that would make a difference. Thanks in advance for any help.
 
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I just updated my 93 that had the 60170 ECU to a 60221 out of a 94. The biggest differences I can tell are the shift points and the rpm difference at highway speeds. Also with the old ECU my truck was not shifting into overdrive.
 

cruiserdan

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The 89661-60170 is not original to the 94. A 94 should have an 89661-60221. The 89661-60220 is from an early 93 with California emissions and the 89661-60170 is from an early 93 with federal emissions.

Both are replaced by the 89661-60221.
 
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ECU

Thanks for the info maybe I have a 93 I was told it was a 94 when I got it. I just went out back to verify the year but I got rid of the doors so no info I will look it up by vin if I have nothing better to do. Also any advantages running a Fedral emissions ECU vs a CA one?
 
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