No electical power in 90 240sx - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Airborne711 · 11-30-2010, 10:03 AM

so after figuring out that the problem with my car loosing all power at 4000 RPM, (it was the maf not making a great connection to the plug) i drove it home to Delaware (Parents House) for the winter. and after fixing an alternator issue in Mass, I eventually made it.

well i proceeded to prepare for a 5 lug swap, did an oil change and and among other things, did a battery relocation to the trunk.

well i ran all the wires, hooked up the ground and power ad attempted to turn on the car. Nothing happened. After checking all the grounds and flow with a multi checker, i was getting 12 volts at the original battery location from the trunk and had all the connections right. still wouldnt start. So I began fiddling with the power, disconnecting it then re-checking the power. I eventually remembered that the EGI relay like to play games so I began disconnecting that from the relay box in the engine bay, and I got the lights on the dash to come on but no secondary or primary power when the key was turned. well i plugged the EGI back in and the car stated first try. HUGE MYSTERY.

i then drove it around and then shut it off, restarted it a few times, and I thought all was good. Well i leave the car in DE and take a train back to VT for the rest of the month.

well my Dad desired to try and drive it to work, and he gets about through the housing gate, and the car dies and now wont restart. Loss of power no lights even on the dash, so i tell him to mess with the EGI again, and he gets the red lights to come one just like last time, but still no power and wont start. Same as last time.

So the car is currently sitting in a parking lot, not a big issue, but its just pissing me off, and I cant look at it my self.

Need some help and what it might be. Should I keep looking into the EGI or is it more of a grounding issue or what. im getting the proper voltage to the relay box, and ground seems fine. Im just out of ideas, and would like the help.

-Matt

JDMRIDDAZ · 11-30-2010, 10:37 PM

the trigger to the relay
or the output of the relay

Airborne711 · 12-01-2010, 07:33 AM

but is it the ignition relay, the EGI, or something else?

I figured it was a relay or a short, but i just dont know where.

JDMRIDDAZ · 12-01-2010, 09:09 PM

pull off bottom of relay panel and check the wires directly at relay

11-30-2010, 10:03 AM	#1
Airborne711 Join Date: Apr 2009 Location: Vt Age: 31 Posts: 43 Trader Rating: (1) Feedback Score: 1 reviews	No electical power in 90 240sx so after figuring out that the problem with my car loosing all power at 4000 RPM, (it was the maf not making a great connection to the plug) i drove it home to Delaware (Parents House) for the winter. and after fixing an alternator issue in Mass, I eventually made it. well i proceeded to prepare for a 5 lug swap, did an oil change and and among other things, did a battery relocation to the trunk. well i ran all the wires, hooked up the ground and power ad attempted to turn on the car. Nothing happened. After checking all the grounds and flow with a multi checker, i was getting 12 volts at the original battery location from the trunk and had all the connections right. still wouldnt start. So I began fiddling with the power, disconnecting it then re-checking the power. I eventually remembered that the EGI relay like to play games so I began disconnecting that from the relay box in the engine bay, and I got the lights on the dash to come on but no secondary or primary power when the key was turned. well i plugged the EGI back in and the car stated first try. HUGE MYSTERY. i then drove it around and then shut it off, restarted it a few times, and I thought all was good. Well i leave the car in DE and take a train back to VT for the rest of the month. well my Dad desired to try and drive it to work, and he gets about through the housing gate, and the car dies and now wont restart. Loss of power no lights even on the dash, so i tell him to mess with the EGI again, and he gets the red lights to come one just like last time, but still no power and wont start. Same as last time. So the car is currently sitting in a parking lot, not a big issue, but its just pissing me off, and I cant look at it my self. Need some help and what it might be. Should I keep looking into the EGI or is it more of a grounding issue or what. im getting the proper voltage to the relay box, and ground seems fine. Im just out of ideas, and would like the help. -Matt

11-30-2010, 10:37 PM	#2
JDMRIDDAZ Zilvia Junkie Join Date: Sep 2007 Location: ｆォリダ Age: 44 Posts: 440 Trader Rating: (3) Feedback Score: 3 reviews	the trigger to the relay or the output of the relay __________________ シチサｎ w/ka20det:in progress シチサｎw/sr20det:stolen

12-01-2010, 09:09 PM	#4
JDMRIDDAZ Zilvia Junkie Join Date: Sep 2007 Location: ｆォリダ Age: 44 Posts: 440 Trader Rating: (3) Feedback Score: 3 reviews	pull off bottom of relay panel and check the wires directly at relay __________________ シチサｎ w/ka20det:in progress シチサｎw/sr20det:stolen

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12-01-2010, 07:33 AM	#3
Airborne711 Join Date: Apr 2009 Location: Vt Age: 31 Posts: 43 Trader Rating: (1) Feedback Score: 1 reviews	but is it the ignition relay, the EGI, or something else? I figured it was a relay or a short, but i just dont know where.