SR not starting - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

NismoTak · 03-26-2008, 11:34 PM

Ok well, I have searched and searched and came with nothing haha.

For some reason my car will not start.

The car cranks, cranks, and cranks, but does not start. Only way to get it moving is to pop start it. I have changed the starter, because it was making horrific sounds during start-up. I'm thinking it's the ignitor chip, but wouldn't the car not run without it working anyways?!??!

By the way, I am getting spark and I hear the fuel pump working.

The battery is fine and everything seems to be in working form. Any info or suggestions would be cool. Thanks in advance.

devnull · 03-27-2008, 12:51 AM

So it runs well when you do get it running?

My first thought is that the ECU isn't getting power during cranking. Check the ground for the ECU. Next most likely suspect is the ignition switch. Make sure ECU power isn't wired to the ACC position on the switch. It should be wired to ON.

NismoTak · 03-27-2008, 11:09 AM

Quote:

Originally Posted by devnull

So it runs well when you do get it running?

My first thought is that the ECU isn't getting power during cranking. Check the ground for the ECU. Next most likely suspect is the ignition switch. Make sure ECU power isn't wired to the ACC position on the switch. It should be wired to ON.

It runs great when it's running. ECU is getting power. It's an AEM EMS. I thinking along the lines of maybe it being the ignitor or one of the relays.

180sx_Drifter · 03-27-2008, 11:18 AM

yes check the relays. my buddies wouldnt start but once we took off one of the relays it worked. faulty relay caused it but ill have to ask which one. i believe its one of the gray ones. ill find out and get back to you. you also said you are getting fuel right? also check your fuses just in case.

NismoTak · 03-27-2008, 11:11 PM

Well thanks to everyone who helped out. Found out the problem and quickly solved it. Turns out two loose connectors on the ecu's harness were grounding themselves on the bolt that holds the harness on the ecu. When we installed the AEM EMS, we removed all items not needed. I seperated the wires and taped them up nice and clean. Did all that and it started up perfectly.

Once again, thanks.

03-26-2008, 11:34 PM	#1
NismoTak Leaky Injector Join Date: Feb 2005 Location: Illinois Age: 44 Posts: 106 Trader Rating: (1) Feedback Score: 1 reviews	SR not starting Ok well, I have searched and searched and came with nothing haha. For some reason my car will not start. The car cranks, cranks, and cranks, but does not start. Only way to get it moving is to pop start it. I have changed the starter, because it was making horrific sounds during start-up. I'm thinking it's the ignitor chip, but wouldn't the car not run without it working anyways?!??! By the way, I am getting spark and I hear the fuel pump working. The battery is fine and everything seems to be in working form. Any info or suggestions would be cool. Thanks in advance. __________________ -Tony

03-27-2008, 11:18 AM	#4
180sx_Drifter Zilvia Junkie Join Date: Jan 2008 Location: SoCal Posts: 557 Trader Rating: (1) Rides Gallery: 180sx_Drifter Feedback Score: 1 reviews	yes check the relays. my buddies wouldnt start but once we took off one of the relays it worked. faulty relay caused it but ill have to ask which one. i believe its one of the gray ones. ill find out and get back to you. you also said you are getting fuel right? also check your fuses just in case. __________________

03-27-2008, 11:11 PM	#5
NismoTak Leaky Injector Join Date: Feb 2005 Location: Illinois Age: 44 Posts: 106 Trader Rating: (1) Feedback Score: 1 reviews	Well thanks to everyone who helped out. Found out the problem and quickly solved it. Turns out two loose connectors on the ecu's harness were grounding themselves on the bolt that holds the harness on the ecu. When we installed the AEM EMS, we removed all items not needed. I seperated the wires and taped them up nice and clean. Did all that and it started up perfectly. Once again, thanks. __________________ -Tony

03-27-2008, 12:51 AM	#2
devnull Zilvia Member Join Date: Aug 2006 Location: Earth Posts: 222 Trader Rating: (0) Feedback Score: 0 reviews	So it runs well when you do get it running? My first thought is that the ECU isn't getting power during cranking. Check the ground for the ECU. Next most likely suspect is the ignition switch. Make sure ECU power isn't wired to the ACC position on the switch. It should be wired to ON.