not another no spark sr please help ive tried everything and need to get back home - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Slippedslideways951 · 09-04-2014, 09:24 PM

GO to bottom paragraph to by pass story!!!!!!!!!
Okay lets start with were the problem occurred. About 2 days ago I pulled into the gas station and before I could come to a complete stop, the engine stalled. I tried pulling fp fuse hoping it was flooded but no luck. first thing to pop in my head was a bad fp got a tow to a family members house and immediately overnighted a walbro! Well just my luck I now have 2 good fp.

Now down to business!
Spec: 94 s13 blacktop Sr20det in a 89 pig nose
Block: 87mm cp pistons, eagle rods, stock in/exh mani
Head: BC 264 in/exh cams BC 1mm overin/exh valves BC Ti springs/retainer tomei 740cc injectors and some RAS
Turbo: .86 Gt2871
Engine Management: AEM ems2 MAP/iat (I DO NOT HAVE A MAF) for those of you that were still going to suggest that lol! I know that the aem ems2 has some cool things I don't know about, maybe some type of diagnostics feature hahaha wishful thinking

The Issue: I I'm not getting spark to the spark plugs! Ive Put spark plug against the head there was no spark
here is a list of steps I have tried to resolve my issue.
1.)checked voltage on the coils middle wire (b) terminal. 12v
2.)ign off. there's continuity between coils (a) terminal and ground
3.)There's continuity between igniter (f) terminal harness and ground
4.)Terminals (i,j,k,l) from igniter harness has continuity with coils (c) terminal
5.)There's continuity between ecu harness and igniter harness
6.).8 resistance on each coil pack
7.)Tested igniter terminals continuity both -and+ polarity's per fsm.

*I tried getting a voltage reading from starter signal (orange)wire at ecu but failed maybe some one can help me get a reading.
I tried some other things but cant remember at the moment. any ideas will help!!

currently thinking about making a harness from the 4 ecu ign pins to the igniter and grounding the igniter directly to the chassis, as well as wiring up a harness from the 4 pin igniter connector to the coil harness and adding a ground from each coil to the block. will a setup like that be of any benefit or would I just be adding more unnecessary wires?

KoukiMonsta · 09-08-2014, 10:50 AM

I dont see anything about CAS, that directly effects spark.

09-04-2014, 09:24 PM	#1
Slippedslideways951 Join Date: Jun 2012 Location: CALIFORNIA Age: 28 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	not another no spark sr please help ive tried everything and need to get back home GO to bottom paragraph to by pass story!!!!!!!!! Okay lets start with were the problem occurred. About 2 days ago I pulled into the gas station and before I could come to a complete stop, the engine stalled. I tried pulling fp fuse hoping it was flooded but no luck. first thing to pop in my head was a bad fp got a tow to a family members house and immediately overnighted a walbro! Well just my luck I now have 2 good fp. Now down to business! Spec: 94 s13 blacktop Sr20det in a 89 pig nose Block: 87mm cp pistons, eagle rods, stock in/exh mani Head: BC 264 in/exh cams BC 1mm overin/exh valves BC Ti springs/retainer tomei 740cc injectors and some RAS Turbo: .86 Gt2871 Engine Management: AEM ems2 MAP/iat (I DO NOT HAVE A MAF) for those of you that were still going to suggest that lol! I know that the aem ems2 has some cool things I don't know about, maybe some type of diagnostics feature hahaha wishful thinking The Issue: I I'm not getting spark to the spark plugs! Ive Put spark plug against the head there was no spark here is a list of steps I have tried to resolve my issue. 1.)checked voltage on the coils middle wire (b) terminal. 12v 2.)ign off. there's continuity between coils (a) terminal and ground 3.)There's continuity between igniter (f) terminal harness and ground 4.)Terminals (i,j,k,l) from igniter harness has continuity with coils (c) terminal 5.)There's continuity between ecu harness and igniter harness 6.).8 resistance on each coil pack 7.)Tested igniter terminals continuity both -and+ polarity's per fsm. *I tried getting a voltage reading from starter signal (orange)wire at ecu but failed maybe some one can help me get a reading. I tried some other things but cant remember at the moment. any ideas will help!! currently thinking about making a harness from the 4 ecu ign pins to the igniter and grounding the igniter directly to the chassis, as well as wiring up a harness from the 4 pin igniter connector to the coil harness and adding a ground from each coil to the block. will a setup like that be of any benefit or would I just be adding more unnecessary wires?

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09-08-2014, 10:50 AM	#2
KoukiMonsta Nissanaholic! Join Date: Mar 2009 Location: NC Posts: 1,969 Trader Rating: (23) Feedback Score: 23 reviews	I dont see anything about CAS, that directly effects spark.