Main fuse relay?

Fubar231

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Apr 2, 2008
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So i cleaned my ISCV, car started fine. I turned it off, unplugged the EFI for like 15 seconds and now car will not start. When the keys in it makes the normal beep, but once i try to start it it loses all power it sounds like and makes the beep a real low, boop, type tone. My Main Fuse relay in the fusebox under the hood, is making this really weird poping type noise when i try and start the car. Is that normal? Is there any way i can test it? Oh i did test my battery and it was 12.4 volts and my alternator (alt+ to bat -) tested good too. Please help!!!!!!
 

Fubar231

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Apr 2, 2008
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Mk3runner;1364761 said:
Short somewhere maybe, do the wiggle test to see if it affects anything.

Wiggled the wires, checked EVERY FUSE, everything looked good. The only thing i havnt done is try to jump the car, but i don't see that helping when the battery is good. Is there anyway to test the fuse/relay itsself? Its the little cylinder thing that says TOYOTA RELAY M4.
 

Fubar231

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Well i went ahead and ordered a new main fuse from toyota, 14$. Hope this is it, ill find out tomorrow. If anyone else has any ideas please pitch tell me.
 

Mk3runner

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A load test is like cranking amps. You may read 12.4 v on batt but the moment you turn the key it's gone. Jump it with another car and see if that does it. Or haul the batt to local parts store to test.
 

radiod

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Dec 13, 2007
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Yeah, a battery should stay above 9.8V under half it's rated CCA load for 10 seconds. If it drops below that it's either done or on it's way out. Give it a jump first like MK3runner said, see if you can get it going that way. If your in car beeper is changing to a lower pitch, it's not getting the voltage that it wants which means something in the delivery isn't working properly. First thing I would do is get the battery charged on a trickle charger, and then properly load tested. A load test obviously won't give you accurate results if your battery is already half drained (which it very likely is right now).
 

Fubar231

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Mk3runner;1364799 said:
Nah bro, try jump starting your ride.

You know jumper cables from one car to another

But don't i want to be testing MY battery? If its jump started to another car then its going to pull power from there.
 

Mk3runner

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Well yeah.. I was saying that out of being lazy. If you jump it and it runs batts crap. If it don't then keep on picking at it.

If you got a known good batt you wanna throw in to see if it cranks over then cool.
 

Fubar231

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It was the battery. Threw it in my moms rolla and it did the same shit. I called toyota and canceled that order for the fuse, and now i get to go fight with napa about there battery. Also, anyone ever get funky weird codes from there turbo timer after a battery dies? Mine gives me like OCO or something weird now, no longer lets the car idle. Kinda pissed. Oh, and my check engine light did come back on, so ima somehow try and blame the dead o2 on napa. We'll see.