Swapped the ecu from my 94 to the 95 and it runs 80 percent better and only has the 25 code and a flat power band. However at the same time the 94 with the 95 ecu still runs perfect and the issues that the 95 had aren’t transferred over. So many wierd issues. Having doubts that my updated engine harness is any good. Running out of ideas

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero