SR S13 - Fired up for a second - died - no spark or fuel - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

1320VR4 · 05-16-2014, 08:35 AM

Not getting spark of fuel to my SR swapped S13 Vert. I got in it this morning to go to work and it fired up for a brief second and died.

I jumped the fuel pump relay and the pump turns on. I tried starting it with the relay jumped and no beans. It's not getting spark either.

Where to start on this? I'm going over loose connectors and grounds. I have to download the FSM and see what I can find in there.

Matt

jr_ss · 05-16-2014, 08:53 AM

Check the CAS. Typically if you don't have spark or fuel it's a bad CAS or wiring to said unit.

1320VR4 · 05-16-2014, 10:55 AM

i checked the cam sensor wires as per

being that they are the white and black wires on the plug closest to the front of the vehicle, assuming the tab on the photo is the tab on the plug facing toward the motor.

I'm getting a small fluctuation in the range of millivolts to zero voltage at all.

Matt

jr_ss · 05-16-2014, 06:17 PM

1 and 2 should be closest to the motor on the backside of the plug. You need to have it plugged into the CAS when testing this and the CAS needs to be out of the head unless you're using your motor to spin it? If you aren't getting anything, verify that you're actually hitting bare wire. I use a paper clip shoved in the back side of each terminal to test things like this. If you still have nothing, find a replacement or one from a buddy you can borrow to test.

1320VR4 · 05-18-2014, 07:27 AM

I've got nothing more than a volt out of any of the terminals. Wiring looks healthy

jr_ss · 05-18-2014, 07:33 AM

Find another CAS to test it against.

1320VR4 · 05-18-2014, 08:37 AM

I don't have any friends with Sr motors to test it against. I have to buy one. No other problems to check that would cause both spark and fuel to cut simultaneously?

1320VR4 · 05-18-2014, 09:29 AM

unplugged, shouldn't there be a 5 volt reference coming out of the cas line? I don't seem to be getting more than a volt out of anything

1320VR4 · 05-18-2014, 09:33 AM

I just put new coil overs on and my front tires are a little too big, I'm going to jack it up and examine the wiring harnesses that run in the wheel wells, maybe I rubbed through a wire?

jr_ss · 05-18-2014, 12:01 PM

Possibly, but you'd have more than just 1 wire rubbed through and other issues. Check your ECCS relay and appropriate fuses.

Protius · 05-19-2014, 04:03 AM

Sounds like you're not getting power to the CAS which comes from the EGI relay which is controlled via the ECU. ECU also controls the fuel pump relay so it sounds like you've got a dead ecu or it's not getting power.

1320VR4 · 05-19-2014, 06:49 AM

The relay took a shit. So I have to pick one up today. It has a jumper wire right now so it's driveable. Thanks everyone!

First time I've ever had something so simple keep my car from running. I'm going to replace both green relays since they're the same age and it can't hurt

05-16-2014, 08:35 AM	#1
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	SR S13 - Fired up for a second - died - no spark or fuel Not getting spark of fuel to my SR swapped S13 Vert. I got in it this morning to go to work and it fired up for a brief second and died. I jumped the fuel pump relay and the pump turns on. I tried starting it with the relay jumped and no beans. It's not getting spark either. Where to start on this? I'm going over loose connectors and grounds. I have to download the FSM and see what I can find in there. Matt __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-16-2014, 08:53 AM	#2
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,056 Trader Rating: (34) Feedback Score: 34 reviews	Check the CAS. Typically if you don't have spark or fuel it's a bad CAS or wiring to said unit. __________________ My SR20VET

05-16-2014, 10:55 AM	#3
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	i checked the cam sensor wires as per being that they are the white and black wires on the plug closest to the front of the vehicle, assuming the tab on the photo is the tab on the plug facing toward the motor. I'm getting a small fluctuation in the range of millivolts to zero voltage at all. Matt __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-16-2014, 06:17 PM	#4
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,056 Trader Rating: (34) Feedback Score: 34 reviews	1 and 2 should be closest to the motor on the backside of the plug. You need to have it plugged into the CAS when testing this and the CAS needs to be out of the head unless you're using your motor to spin it? If you aren't getting anything, verify that you're actually hitting bare wire. I use a paper clip shoved in the back side of each terminal to test things like this. If you still have nothing, find a replacement or one from a buddy you can borrow to test. __________________ My SR20VET

05-18-2014, 07:27 AM	#5
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	I've got nothing more than a volt out of any of the terminals. Wiring looks healthy __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-18-2014, 07:33 AM	#6
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,056 Trader Rating: (34) Feedback Score: 34 reviews	Find another CAS to test it against. __________________ My SR20VET

05-18-2014, 08:37 AM	#7
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	I don't have any friends with Sr motors to test it against. I have to buy one. No other problems to check that would cause both spark and fuel to cut simultaneously? __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-18-2014, 09:29 AM	#8
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	unplugged, shouldn't there be a 5 volt reference coming out of the cas line? I don't seem to be getting more than a volt out of anything __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-18-2014, 09:33 AM	#9
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	I just put new coil overs on and my front tires are a little too big, I'm going to jack it up and examine the wiring harnesses that run in the wheel wells, maybe I rubbed through a wire? __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

05-18-2014, 12:01 PM	#10
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,056 Trader Rating: (34) Feedback Score: 34 reviews	Possibly, but you'd have more than just 1 wire rubbed through and other issues. Check your ECCS relay and appropriate fuses. __________________ My SR20VET

05-19-2014, 04:03 AM	#11
Protius Join Date: Sep 2012 Location: Australia Age: 33 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like you're not getting power to the CAS which comes from the EGI relay which is controlled via the ECU. ECU also controls the fuel pump relay so it sounds like you've got a dead ecu or it's not getting power.

05-19-2014, 06:49 AM	#12
1320VR4 Zilvia Member Join Date: Mar 2012 Location: Vernon, NJ Age: 31 Posts: 269 Trader Rating: (4) Feedback Score: 4 reviews	The relay took a shit. So I have to pick one up today. It has a jumper wire right now so it's driveable. Thanks everyone! First time I've ever had something so simple keep my car from running. I'm going to replace both green relays since they're the same age and it can't hurt __________________ 94 240SX, 93 Stealth, 92 VR4, 93 RX7 , 88 Yota

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