alright i have a big problem, everytime i start my vehicle every light (dash, headlight, anything that lights up) gets dim and bright, on and on quicker and quicker until its back to normal. and this last for about 10-15 seconds for everytime i start my car, also something the battery light goes crazy blinking rapidly but does not turn completly on... New alternator, battery and (2) brand new direct fit Denso 02's, dares a check engine light for the 02's but i kno the 02's works because ever since i installed it between shifts its much smoother and a diagnostic test shows theres a problem with both 02's, also a wire from each 02's is throwing low voltage, out putting 3.44v when its suppose to be 12v ........ HELP!!!!!

 

might i say a bad relay?
some one help me out on this

 

a check engine light for an 02 sensor might not specifically mean your 02 is bad... its throwing a light either for a rich or lean condition, which means where u have to pay attention is to your motor and find out why its running funy....as for your lights, i have no idea as to what it can be...