Power cut to the whole car once key is turned - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

omgshawn · 10-11-2009, 09:29 PM

It's a 90 s13 with a s14 dual cam swap. I recently relocated my battery to the hatch and wired up the rest of my system, everything was working great for a few days and then I go out today and when I put the key in and turn it to start the car it's just blank, no power to the whole car. I was just driving the car 5 minutes before hand too, it was actually running better than ever.

I have 12v coming out of the battery and into the engine bay, but as soon as it's hooked up to the splitter power drops to .5v. The splitter is a 3 way T and connects the battery +, starter and I'm assuming fusebox/alternator power wires.

The starter + wire going tot he starter was lose so I tightened that up and then I found I blew the 10A Engine Cont. fuse in the engine bay.

My grounds are good, I checked resistance between the body and engine and body and battery both are like .7ohms.

I was thinking it could be a ignition switch. When I put the key in and turn to to accessory so the key lock engages, then turn the key back towards off, the clock slowly dims on and off. Otherwise with the key out the only thing that works is the clock. If I turn my lights on 1 click the clock turns off.

What could it be?

negrosx13 · 10-11-2009, 10:49 PM

sooo before the power gets to the spliter??change spilter or check the wires going to the from it

zenki.life · 10-12-2009, 11:18 AM

sounds like you have a short somewhere that is draining your power.have you checked the battery each time you did anything?

omgshawn · 10-12-2009, 01:47 PM

I checked the splitters and all the connections and they're all fine, it's once I connect the 12v to the car is when all the power is cut, the only thing that works is the clock. And once I put the key in and turn it, there is no power to anything.

The battery has 12.5v so I know that's good. I pulled the driveside fuse box and checked everything in that area, it seems fine, no bad connections, grounds are good etc.

I have a job interview tomorrow, it's a driving job so I really need this car running. Could it be the ignition switch?

What I'm guessing happened was the 12v to the starter was lose, and when I went to start the car it probably arced or shorted out, causing the Engine Cont. fuse to blow. But the question is what can still cause no power to the whole car? Like I said I was driving it 5 minutes before this happened and it ran fine, no problems.

10-11-2009, 09:29 PM	#1
omgshawn Leaky Injector Join Date: Aug 2009 Location: FL Posts: 130 Trader Rating: (3) Feedback Score: 3 reviews	Power cut to the whole car once key is turned It's a 90 s13 with a s14 dual cam swap. I recently relocated my battery to the hatch and wired up the rest of my system, everything was working great for a few days and then I go out today and when I put the key in and turn it to start the car it's just blank, no power to the whole car. I was just driving the car 5 minutes before hand too, it was actually running better than ever. I have 12v coming out of the battery and into the engine bay, but as soon as it's hooked up to the splitter power drops to .5v. The splitter is a 3 way T and connects the battery +, starter and I'm assuming fusebox/alternator power wires. The starter + wire going tot he starter was lose so I tightened that up and then I found I blew the 10A Engine Cont. fuse in the engine bay. My grounds are good, I checked resistance between the body and engine and body and battery both are like .7ohms. I was thinking it could be a ignition switch. When I put the key in and turn to to accessory so the key lock engages, then turn the key back towards off, the clock slowly dims on and off. Otherwise with the key out the only thing that works is the clock. If I turn my lights on 1 click the clock turns off. What could it be?

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10-11-2009, 10:49 PM	#2
negrosx13 Zilvia Addict Join Date: Feb 2009 Location: Houston,tx Posts: 948 Trader Rating: (14) Feedback Score: 14 reviews	sooo before the power gets to the spliter??change spilter or check the wires going to the from it

10-12-2009, 01:47 PM	#4
omgshawn Leaky Injector Join Date: Aug 2009 Location: FL Posts: 130 Trader Rating: (3) Feedback Score: 3 reviews	I checked the splitters and all the connections and they're all fine, it's once I connect the 12v to the car is when all the power is cut, the only thing that works is the clock. And once I put the key in and turn it, there is no power to anything. The battery has 12.5v so I know that's good. I pulled the driveside fuse box and checked everything in that area, it seems fine, no bad connections, grounds are good etc. I have a job interview tomorrow, it's a driving job so I really need this car running. Could it be the ignition switch? What I'm guessing happened was the 12v to the starter was lose, and when I went to start the car it probably arced or shorted out, causing the Engine Cont. fuse to blow. But the question is what can still cause no power to the whole car? Like I said I was driving it 5 minutes before this happened and it ran fine, no problems.