voltage vanish. weird. help!!!!

[irocznissan]

ok maybe u guys can help me. i relocated the battery to the rear of the car for race reasons. connected the positive cable to the starter as i found it and the ground to a tab sticking out the trunk. (fairly solid ground) i have a wire coming from the starter like i found b4 the install connected that to a red connector as i found it. car ran.

then when i was cleanin up the way it looked i touched the 2nd wire from the starter to the intake by accident. car completely lost power. ok no problem i check all the fuses they were fine.

now for the weird part. the car has 13 volts from the battery to the starter. and same from the start of the 2nd wire to the end. but now when i connect it to the red box thing all voltage vanish!! as soon as i connect it it disappears. when i disconnect it it has 13 volts!

didnt put much time into cuz i had work soon. but im a licensed tech for toyota/ lexus and ive never seen this before. maybe this has happened to somebody before. the car is just sitting now on a nice new jersy weekend.

HELP!!!!

[90_240sxx]

but now when i connect it to the red box thing

red box?? can you take a pic of it?

[OutToWinPAHC]

I have no idea what this redbox thing is but you took the battery to ground via the intake. Now I don't know how well it was charged but it may be possible the battery is very very low and under load after connected its dropping down.

Try to re-charge the battery and re check your wiring and fuses.

[lovespeed]

how are you cheking the voltage? are you cheaking actual voltage or doing a voltage drop test.

[Airmanspecial]

well....i think that wire goes to that starter solenoid...which is why the waire goin to the starter has 13 volts, if you grounded out the other one...you might have fried a fusible link somwhere because that 2nd wire should go to a starter relay, to prevent you from frying your harness if you shorted somehin out. Do you have power? and the car wont turn over? you migh have fries a relay.

[Uberck]

damn! a licensed tech from toyota? i wish i had me one of those that **** give you madd knowleges dogg

[irocznissan]

damn! a licensed tech from toyota? i wish i had me one of those that **** give you madd knowleges dogg

if u are not gonna help with the posted problem dont post at all thanx.

any way the problem is fixed i just ended up re wiring one of the fuse box harnesses. all is good now. but now the fuel pump wanna take a dump. it nevers ends but gotta love it.

[irocznissan]

ok i replaced the fuel pump and all is fine with that but now the car wont rev above 5k. it sputters and wont go anymore. idles fine runs fine until about 3500. any ideas on that

[OutToWinPAHC]

Clean the Maf, Check injectors and fuel filter.