RB25 S13 no spark issue - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Michaelwinne · 10-08-2012, 07:11 PM

Alright guys I'm having another problem, I ditched the Chase Bays harness and picked up someone elses homemade wiring harness and ECU combo that came out of a running car(or so they say). I tossed everything in the car and turned the key and voila! the ECU lit up(a signal that I have yet to see with this swap), turned it to start and nothing. The starter wouldn't turn over. So I ran a hot wire to the solenoid with the key in the on position, can see the fuel lines jumping, and when I run the starter through, it doesn't start.

I pulled off one of the coil pack plug and hooked it up to a spare pack and spark plug, and nothing, no spark. I have the coil pack harness grounded, the wiring harness grounded to the intake mani, and the block grounded to the chassis. I checked power to the coils and I have 12v and a good ground to all coils, but I do not know how to check the signal wires.

I have a spare ignitor and tried both and no change, and I have a spare CAS and tried it and no change.

If someone could tell me how to check all the signal wires for the coils I will do that, or if you have any other ideas please help me out! I've been trying to get this car started for months and I just can't figure it out. I'm pretty sure all my fuses and relays are good, the wiring harness was missing the two relays, ECCS and IGN relays I believe, but I managed to find a couple that are both 30 amp 12v relays so I imagine that they work fine. If anyone has any questions or ideas please help me out!! Thanks for reading all this if you made it this far!

*fliprayzin240sx* · 10-08-2012, 08:51 PM

Jeez, good luck Mike, just got mine up and running this weekend. I ended up going with WS pre-made harness and car started up within 5 seconds of the initial crank up.

Michaelwinne · 10-08-2012, 08:56 PM

Thanks man I should've gotten a WS one but for $300 I got a harness and ECU from a running car, or so the guy says lol

Michaelwinne · 10-09-2012, 10:22 AM

No ideas guys??

Michaelwinne · 10-09-2012, 10:30 PM

Bump it up! There's gotta be some ppl out there with wiring experience with RB25s that have some ideas!

bkt808 · 10-10-2012, 12:21 PM

s1 or s2? do you have the correct coil packs?

Michaelwinne · 10-10-2012, 01:00 PM

It's a S1 engine. I do have series 1 coils with 2 different ignitors.

Sileighty_85 · 10-17-2012, 01:19 AM

if you jump the stater you need to turn the key at the same time and it should run.

10-08-2012, 07:11 PM	#1
Michaelwinne Zilvia Junkie Join Date: Dec 2011 Location: Hurlburt Field, Florida Age: 33 Posts: 447 Trader Rating: (12) Feedback Score: 12 reviews	RB25 S13 no spark issue Alright guys I'm having another problem, I ditched the Chase Bays harness and picked up someone elses homemade wiring harness and ECU combo that came out of a running car(or so they say). I tossed everything in the car and turned the key and voila! the ECU lit up(a signal that I have yet to see with this swap), turned it to start and nothing. The starter wouldn't turn over. So I ran a hot wire to the solenoid with the key in the on position, can see the fuel lines jumping, and when I run the starter through, it doesn't start. I pulled off one of the coil pack plug and hooked it up to a spare pack and spark plug, and nothing, no spark. I have the coil pack harness grounded, the wiring harness grounded to the intake mani, and the block grounded to the chassis. I checked power to the coils and I have 12v and a good ground to all coils, but I do not know how to check the signal wires. I have a spare ignitor and tried both and no change, and I have a spare CAS and tried it and no change. If someone could tell me how to check all the signal wires for the coils I will do that, or if you have any other ideas please help me out! I've been trying to get this car started for months and I just can't figure it out. I'm pretty sure all my fuses and relays are good, the wiring harness was missing the two relays, ECCS and IGN relays I believe, but I managed to find a couple that are both 30 amp 12v relays so I imagine that they work fine. If anyone has any questions or ideas please help me out!! Thanks for reading all this if you made it this far!

10-08-2012, 08:51 PM	#2
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Jeez, good luck Mike, just got mine up and running this weekend. I ended up going with WS pre-made harness and car started up within 5 seconds of the initial crank up. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

10-17-2012, 01:19 AM	#8
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	if you jump the stater you need to turn the key at the same time and it should run. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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10-08-2012, 08:56 PM	#3
Michaelwinne Zilvia Junkie Join Date: Dec 2011 Location: Hurlburt Field, Florida Age: 33 Posts: 447 Trader Rating: (12) Feedback Score: 12 reviews	Thanks man I should've gotten a WS one but for $300 I got a harness and ECU from a running car, or so the guy says lol

10-09-2012, 10:22 AM	#4
Michaelwinne Zilvia Junkie Join Date: Dec 2011 Location: Hurlburt Field, Florida Age: 33 Posts: 447 Trader Rating: (12) Feedback Score: 12 reviews	No ideas guys??

10-09-2012, 10:30 PM	#5
Michaelwinne Zilvia Junkie Join Date: Dec 2011 Location: Hurlburt Field, Florida Age: 33 Posts: 447 Trader Rating: (12) Feedback Score: 12 reviews	Bump it up! There's gotta be some ppl out there with wiring experience with RB25s that have some ideas!

10-10-2012, 12:21 PM	#6
bkt808 Zilvia Member Join Date: Feb 2010 Location: Wailuku, Maui, Hawaii Age: 33 Posts: 245 Trader Rating: (1) Feedback Score: 1 reviews	s1 or s2? do you have the correct coil packs?

10-10-2012, 01:00 PM	#7
Michaelwinne Zilvia Junkie Join Date: Dec 2011 Location: Hurlburt Field, Florida Age: 33 Posts: 447 Trader Rating: (12) Feedback Score: 12 reviews	It's a S1 engine. I do have series 1 coils with 2 different ignitors.