TwinTurbo.NET: Nissan 300ZX forum - What ECU do you have in the Car.. NA or TT
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Subject What ECU do you have in the Car.. NA or TT
     
Posted by Cjw3 on March 17, 2019 at 11:51 AM
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In Reply To Smog Referee : fan needs to be controlled by the ECU posted by ZVella32 on March 17, 2019 at 02:24 AM
     
Message To me it sounds like you have Garbage Information.. Hooking an analog sensor to a Fan Relay is not a good idea..
Going from memory.. the NA ECU only controls the A/C Fan.. the TT ECU Controls the Engine fan and A/C fan.. and I think it's just a two speed affair of the same fan on the TT..

I think there is a write up on how to Control the Fan in a single speed arraignment in the NA ECU.. the TT ECU has the two speed Controls, but the NA Body Harness does not have the Wires or the Second Relay..

I THINK your ECU PROM will need to be changed to have the Fan A/C Control to have a lower Engine Tamp ( Simple Set point Change.. and Re-Burn the Prom ) and hook your electric fan up to the A/C Fan Wires that exist in the NA Body..

I'll do some searching and see what I can Find..

Cj

     
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