Daniel Thomas Posted August 25, 2007 Report Share Posted August 25, 2007 I have received this 2nd hand, and told it was a link gen1 ecu. I have nothing but the ecu, no manuals, computer cables, software etc. It has supposed to have came out of a gen2 3sgte. Im going to be installing it into my sw20 mr2 gen2 3sgte engine. Listed inside the smaller box is "G7274" and inside the other one, theres two chips, listed as "D423SGTE" and "SUBTOY24". So what version ecu do i have? Also as far as i know, this removes the AFM and i then plug the vacuum line into the manifold somewhere as this is a MAP sensor. Afaik, it also reads the TPS. Now ive been told that an optional intake air temp(IAT) sensor is rather essential too. Is this true? If so, where/how does the IAT plug/wire in? This has came out of a running car apparently the same as mine. I connected up the ecu, plug in vacuum line, disconnected the afm. engine cranks, but shows no sign of starting. I will be getting this professionally dyno tuned, but i was hoping to get it installed and running myself before takin it to the shop. If anyone can help me out it would be greatly appreciated. Cheers, dan Quote Link to comment Share on other sites More sharing options...
ashesman Posted August 26, 2007 Report Share Posted August 26, 2007 This is most likely a V1 LEM. The software is a special version geared to suit the adapter box that plugs it into the factory loom. There is no where on an ECU that old to wire an IAT sensor to. You will need to get hold of some diagnostic equipment if you want to get it running. You would be better to take the car to the tuner to get it running as you will spend more buying gear to get it going than they will probably charge... Quote Link to comment Share on other sites More sharing options...
Daniel Thomas Posted August 27, 2007 Author Report Share Posted August 27, 2007 So is it possible to run an IAT with this ecu at all? Quote Link to comment Share on other sites More sharing options...
ashesman Posted August 28, 2007 Report Share Posted August 28, 2007 There is no where on an ECU that old to wire an IAT sensor to. No, no way to run an IAT sensor at all without upgrading to a new ECU... Quote Link to comment Share on other sites More sharing options...
Daniel Thomas Posted August 29, 2007 Author Report Share Posted August 29, 2007 Ok no worries. Can i still expect to acheive decent power and good fuel economy from this ecu? Quote Link to comment Share on other sites More sharing options...
ashesman Posted August 30, 2007 Report Share Posted August 30, 2007 Well, it is probably over ten years old. It lacks the ability to do barometric pressure correction, intake temperature correction and closed loop lambda control. You will probably get good power, but it is the variation from day to day, poor idle control and poor economy that you will suffer. Quote Link to comment Share on other sites More sharing options...
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