i installed a plx wideband and it ran fine i went into smanger and set it to closed loop to replace my stock o2 with the new wideband and now my car clicks and the ecu blinks and if i try to connect to it the led turns red did i blow something

 

probably. sounds like your wideband isn't wired correctly. remove the wideband, check your fuses. if the LED is still red, you fried the s300.

 

it turned out I had a corrupted software update I reinstalled smanager and was finally able to upload a good upload to the s300 and all works fine now nothing fried