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HybridZ

280z ecu repair


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I have a 280zx I was trying to get running and suspected a bad ecu so I put a known good ecu form my 280z in. Didn’t work. So I put the ecu back in my z. Suddenly only the rear bank of cylinders were firing. So the first three are all missing. After a bit of research I found out that there are two output transistors inside the Ecu that run the cylinders in banks of three. I have a spare ecu for an auto trans I can use to get these transistors out of but I’m not quite sure which ones they are. I verified it was the ecu by putting the automatic Ecu in my car and it runs well except it idles funny. 

 

Can anyone point me in the correct direction of what components to replace inside my ecu? I don’t see anything obviously burnt or disconnected. 

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