Brad850 Posted September 26, 2015 Report Share Posted September 26, 2015 Is there any reason a stock R auto ecu won't work in a manual swapped 850? The engine just turns over as if there isn't one installed. I always thought you could run the auto ecu.. only difference being rpm behavior/Cel. I have two of them that I want to sell, but only if I'm certain that they aren't broken. I know that one of them worked shortly before my swap. I should add that my 4.4 manual tune from matt works perfectly. Link to comment Share on other sites More sharing options...
volvoguy23 Posted September 26, 2015 Report Share Posted September 26, 2015 Mine worked fine, even with the tcu in...that's kinda odd it won't even start.... Link to comment Share on other sites More sharing options...
Midnight Caller Posted September 26, 2015 Report Share Posted September 26, 2015 Try reversing the polarity of the crankshaft sensor. I don't know if the SW version in the R ECU expects a flywheel with holes or one with teeth for measuring the RPM, but it's worth a try. Link to comment Share on other sites More sharing options...
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