Would running my usdm ecu damage my jdm engine ! After tuning something went wrong i`m still in a jam , my chipped ecu does not run the car properly anymore(run fine for a week) ! IT`s the chip or ecu or both! I`m in the process of getting a new ecu/ ship !!! With the usdm ecu it run fine but, i think i should be careful !

 

Will be fine. As long as it matches the motor itll run.

 

works fine. the jdm and usdm engines are so close to identical as to not be an issue. it's literaly .4 point of compression, nothing else. damn stock p73s are tuned so rich as it is you're not going to have a problem