username Posted August 28, 2007 Share Posted August 28, 2007 i am almost done with my 82 zxt z31 ecu and mas swap. i have the 87 ecu, and i think its bad. the car idles great, but when reved it cuts out at random rpm point under various loads. i swapped the mas, the coolant sensor is new, so ecu? anyway, given the chance which ecu would you buy, an 85 or 87zxt fed? i have the o2 bung but its not on yet, so either way thats not a concern. which work better, more reliable,etc. the 85 or 87. once i get it all done i will do a nice write up on the swap, to pass on the knowledge. thanks Quote Link to comment Share on other sites More sharing options...
Bernardd Posted August 28, 2007 Share Posted August 28, 2007 Get the 87. It has a commonly available eprom for tuning should you ever want to or need to tune it. Quote Link to comment Share on other sites More sharing options...
280Z Turbo Posted September 9, 2007 Share Posted September 9, 2007 An 84-85 300ZX Turbo ECU is the only ECU that will work without changing the O2 sensor or reprogramming. Quote Link to comment Share on other sites More sharing options...
Careless Posted September 9, 2007 Share Posted September 9, 2007 Get the 87. It has a commonly available eprom for tuning should you ever want to or need to tune it. which eeprom does the 84-85 carry? I can find an exact replacement if it's too difficult to find in the usual places. Quote Link to comment Share on other sites More sharing options...
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