help please...

My ecu is flashing a single light over and over with about 4 seconds break in between flashes. My check engine light came on, so I checked it and saw that. Is taht a code 1? or just the light saying it is on? Help please. If it is a code 1 what do i need to do?

how many times is it blinking?

code 1 is oxygen content, i cant tell u much about becauce ive never dealt with that problem, but i know that when u get a code 1 its usually because your oxygen sensor in the exhaust manifold, has detected an abnormality in your mixture. sorry not much help

replace your O2 sensor then reset the ecu, the light should go away.