Cranking but no Fire - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

tycar · 10-26-2008, 11:10 PM

So setup:
T3/T4 with fully converted MAP Sensor system and Power FC conversion. In addition I have an HKS Twin Power setup wired in to the stock harness.

Symptoms:
Drove from San Diego to Los Angeles and when I took off from SD I had a momentary dummy light but it went off. I stopped at least once on the trip up possibly twice. No problems at either one. Got back and parked. A few days later I tried to start the car and it was turning over but not lighting. I thought it might be low voltage so I tried to get jumped and it just kept turning without sparking, just faster.
Took out a plug wire and tested to see if I had spark with a new plug against the valve cover and got nothing. (Valve cover IS painted, also tried it against a strut tower bar. One of these should have sparked right?)

Tested:
Continuity of the wires going from the distributor to the Twin Power were good, continuous.
Because that was continuous, I assume there is a problem with the stock wire harness/signal wires/internal coil within the distributor?
Nothing looked like it was touched etc. Anyone have any ideas? Any common problems or things to look for?

Anyone in the West LA area who has an extra S14 (95/96) Distributor I can test out? or want to drop by and give me a hand?

Any help is appreciated asap.

CrazyKoukiS14 · 10-28-2008, 04:53 PM

try changing all your spark plugs, and see if your cars getting fuel, maybe your fule pump went bad

tycar · 10-28-2008, 10:06 PM

well I know I am getting fuel, its spark that is the issue. any normal causes for failure?

CrazyKoukiS14 · 10-28-2008, 10:19 PM

maybe you just filed your plugs. just make sure when your get new ones that they have the right gap on them, plus spark plugs arent expensive so its worth a try, have you changed all your ignition wires?

slidewaysmn · 10-28-2008, 10:49 PM

fuck, didnt read your first post right. oops. :edit

10-26-2008, 11:10 PM	#1
tycar Join Date: Dec 2007 Location: Los Angeles Posts: 27 Trader Rating: (0) Feedback Score: 0 reviews	Cranking but no Fire So setup: T3/T4 with fully converted MAP Sensor system and Power FC conversion. In addition I have an HKS Twin Power setup wired in to the stock harness. Symptoms: Drove from San Diego to Los Angeles and when I took off from SD I had a momentary dummy light but it went off. I stopped at least once on the trip up possibly twice. No problems at either one. Got back and parked. A few days later I tried to start the car and it was turning over but not lighting. I thought it might be low voltage so I tried to get jumped and it just kept turning without sparking, just faster. Took out a plug wire and tested to see if I had spark with a new plug against the valve cover and got nothing. (Valve cover IS painted, also tried it against a strut tower bar. One of these should have sparked right?) Tested: Continuity of the wires going from the distributor to the Twin Power were good, continuous. Because that was continuous, I assume there is a problem with the stock wire harness/signal wires/internal coil within the distributor? Nothing looked like it was touched etc. Anyone have any ideas? Any common problems or things to look for? Anyone in the West LA area who has an extra S14 (95/96) Distributor I can test out? or want to drop by and give me a hand? Any help is appreciated asap.

10-28-2008, 10:49 PM	#5
slidewaysmn Leaky Injector Join Date: Jan 2007 Location: Brainerd, MN Age: 34 Posts: 136 Trader Rating: (0) Feedback Score: 0 reviews	fuck, didnt read your first post right. oops. :edit __________________ '95 Zenki '85 Cressida

10-28-2008, 04:53 PM	#2
CrazyKoukiS14 Leaky Injector Join Date: Oct 2008 Location: Chicago, Illinois Age: 35 Posts: 111 Trader Rating: (0) Feedback Score: 0 reviews	try changing all your spark plugs, and see if your cars getting fuel, maybe your fule pump went bad

10-28-2008, 10:06 PM	#3
tycar Join Date: Dec 2007 Location: Los Angeles Posts: 27 Trader Rating: (0) Feedback Score: 0 reviews	well I know I am getting fuel, its spark that is the issue. any normal causes for failure?

10-28-2008, 10:19 PM	#4
CrazyKoukiS14 Leaky Injector Join Date: Oct 2008 Location: Chicago, Illinois Age: 35 Posts: 111 Trader Rating: (0) Feedback Score: 0 reviews	maybe you just filed your plugs. just make sure when your get new ones that they have the right gap on them, plus spark plugs arent expensive so its worth a try, have you changed all your ignition wires?