I installed a new Bosch O2 sensor (15733) using the following EVO BoschBlue - BlackWhite - GreyBlack(2) - White (2) Now the car will not start, turns over but no start. Tried to read the codes using an OBDII and kept getting a "Fail" message. Did I some how screw up the ECU? This is my nephews car and I really hope I did mot mess it up.PS Reattached the old sensor and still will not start

 

this is evo X section, so the car was running before? what was the code before?

 

Sorry re posted to the EVO General forum? Yes the car was running fine with just a P0141 code

 

An o2 sensor will NOT cause a no-start condition. Something else must have been done. Are you sure you attached the correct wires?

 

I crossed the wires and blew the 20amp fuse in the engine compartment fuse box. Found a direst replacement sensor (plug & play)

 

good luck bro , but def , an o2 sensor will not cause ur car not to turn on