2004 Nissan Maxima crazy brake pedal

this is from the Q ask yesterday

Have you checked to see if there is spark and fuel to the engine?

yes fuel pump comes on. no spark except when it ran that one time then it ran soon as i tryed to start it bac then it cut rite off an no spark sense. i was thinking cps but that wouldnt make electric stuff act up or would it?? my radator hose that run to engine rite over altanator was leaking could it have leak in to alt an made a short that would do this. thank 4 anwser i have 3 young kids an i got to doit my self money is tight. soon as i get it to gether i will surely donate $$.

You don't have to donate if you can't afford it. Lets just try to get this thing running. Lets start simple. Check all the main fuses under the hood to make sure none are blown.

Ok, I've already done that.

I've check fuses and swapped around relays, and they all seem to be clicking.

I appreciate your help but if it takes this long to get an answer, I'm worried about not being able to get it fixed soon enough.

i ran scanner today,u1000,p1610,u1001,p0462 i done this once then clear codes then checked again the codes i just gave u were from the second reading the first reading had this code also p1612. i dont no what the (can) harrness L an H are. could fine a bad grounds or open or short wires. but electric still acts up when ecu or is unpluged. im checken fuel level unit tomoro. THANKS

???

i really need your help

that was my crazy old mom that wrote that reply about not been able to fix it soon enough not me sir please help

I don't know why, but this just showed up in my mail. Sorry it has been so long. Have you had any luck with the issue?