I have an S300 unit, but I placed and socketed on a P-28 and the unit just work for 20 minutes, then pass to red light and the engine won't pass the 4000 rpm. I checked by every corner of the ecu for measures and the ports of the ecu comunicates with every socket of the eprom. My only last concern is that the 74HC373N is not working or just damaged, because I pass this latch from other ecu (used)....
For waranty purpose of my installation, I put a new ecu and socketed again with all the components and works just like this, wont change the red light to green light...I put the new version of the software and the unit recognized the program change to green/red downloading the calibration, but changes to red.
I install many S300, but this one, gives me a lot of problem and It seems that every component works fine...
Please help me!!!!!!!!!!
