Ecu problems ? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jinesz32 · 07-26-2010, 09:57 PM

I'm having issues with my car.

I was driving it today and All of a sudden the gas doesn't work and my rpm starts jumping like crazy and the car just turns off. I pulled the trim off where the ecu is and I see smoke coming out very very little. I'm guessing the ecu is fried.

I got another ecu but I don't know how to set the little knob behind the ecu . I plugged the old ecu in and the light is red. I don't know what any of this means . If anyone could explain to me how to set the knob clockwise / counter clockwise etc and why the light is red on my old ecu I'd appreciate it.

Thank you .

-JIn

jinesz32 · 07-26-2010, 10:01 PM

The new ecu I got cranks but won't start .

Car is a 95 s14 ka.

My fried ecu is 3D

The new one I got from a friend is WN

Homer_Simpson · 07-26-2010, 10:17 PM

If you fried your original ECU then I would suggest that you figure out the reason why your ECU get fried before you plug in another one.

jinesz32 · 07-26-2010, 10:28 PM

I think one of the wires ground out somewhere previous owner had safc and cut the wires . I plugged them in and the new one is fine didn't fry . It cranks just doesn't start.

Homer_Simpson · 07-26-2010, 10:38 PM

Quote:

Originally Posted by jinesz32

I think one of the wires ground out somewhere previous owner had safc and cut the wires . I plugged them in and the new one is fine didn't fry . It cranks just doesn't start.

Pop the lid off your new ECU and if anything is roasted.

jinesz32 · 07-26-2010, 10:41 PM

The old ecu smells like something is burned in there . Ill pop it off and check.

Homer_Simpson · 07-26-2010, 11:28 PM

Quote:

Originally Posted by jinesz32

The old ecu smells like something is burned in there . Ill pop it off and check.

Check both.

jinesz32 · 07-27-2010, 02:13 AM

cool i just left my car there at the shopping center for the night gonna open it up tomorrow and check all the wiring.

thanks for the inputs, i appreciate it.

i was doing some research and found this thread.

http://zilvia.net/f/tech-talk/68145-...noise-x_x.html

my ecu did make noise, i'm still doing research and hopefully i can figure it out, the light on the ecu is red, the cel light is on and everything, i just don't know why it won't start, i'm gonna look inside the engine bay and see if any wires got chewed up.

it was probably a bad ground that fried, i'll check it out tomorrow, if anyone has any advice on what i should do id appreciate it.

thank you!

jinesz32 · 07-27-2010, 02:54 PM

Just went to my car right now.

After doing hours of research last night.

I began I diagnose.

I pop open the fuse box under the hood.

Read something about egi fuse popped it off and it was blown. Replaced it and it started up perfect.

Thanks again for input.

Much appreciated.

07-26-2010, 09:57 PM	#1
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	Ecu problems ? I'm having issues with my car. I was driving it today and All of a sudden the gas doesn't work and my rpm starts jumping like crazy and the car just turns off. I pulled the trim off where the ecu is and I see smoke coming out very very little. I'm guessing the ecu is fried. I got another ecu but I don't know how to set the little knob behind the ecu . I plugged the old ecu in and the light is red. I don't know what any of this means . If anyone could explain to me how to set the knob clockwise / counter clockwise etc and why the light is red on my old ecu I'd appreciate it. Thank you . -JIn

07-27-2010, 02:13 AM	#8
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	cool i just left my car there at the shopping center for the night gonna open it up tomorrow and check all the wiring. thanks for the inputs, i appreciate it. i was doing some research and found this thread. http://zilvia.net/f/tech-talk/68145-...noise-x_x.html my ecu did make noise, i'm still doing research and hopefully i can figure it out, the light on the ecu is red, the cel light is on and everything, i just don't know why it won't start, i'm gonna look inside the engine bay and see if any wires got chewed up. it was probably a bad ground that fried, i'll check it out tomorrow, if anyone has any advice on what i should do id appreciate it. thank you! Last edited by jinesz32; 07-27-2010 at 02:55 AM..

07-26-2010, 10:01 PM	#2
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	The new ecu I got cranks but won't start . Car is a 95 s14 ka. My fried ecu is 3D The new one I got from a friend is WN

07-26-2010, 10:17 PM	#3
Homer_Simpson Zilvia Addict Join Date: Jun 2008 Location: Back in the Bay! Posts: 619 Trader Rating: (11) Feedback Score: 11 reviews	If you fried your original ECU then I would suggest that you figure out the reason why your ECU get fried before you plug in another one.

07-26-2010, 10:28 PM	#4
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	I think one of the wires ground out somewhere previous owner had safc and cut the wires . I plugged them in and the new one is fine didn't fry . It cranks just doesn't start.

07-26-2010, 10:41 PM	#6
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	The old ecu smells like something is burned in there . Ill pop it off and check.

07-27-2010, 02:54 PM	#9
jinesz32 Zilvia FREAK! Join Date: Jul 2007 Location: SOCAL Age: 35 Posts: 1,074 Trader Rating: (10) Feedback Score: 10 reviews	Just went to my car right now. After doing hours of research last night. I began I diagnose. I pop open the fuse box under the hood. Read something about egi fuse popped it off and it was blown. Replaced it and it started up perfect. Thanks again for input. Much appreciated.