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

tdk3231 · 08-31-2014, 12:10 AM

So recently took my car to the car wash. Washed it and once I was done the car would crank but wouldn't start. Figured I got something wet since I have hood spacers. Let the car sit for about 20 minutes and it started up. Drove it about 2 miles and died on me but all the acc still work.

My set-up
-Ka24DE-T
-Supertech 0.020" over 8.6:1 Forged pistons
-Eagle H-beam rods
-Crower 264/264 cams
-ARP Head bolts
-Cosworth Headgasket
-Engine work - block/head cleaned & pressure
tested, new freeze plugs, cylinder boring/honing
-MAZWORX turbo kit w/ 4" intake
-AMS fuel kit w/ 76 lb./hr. injectors
-Walbro 255 fuel pump
-Custom Magnecore 8.5mm wires
-MegaSquirt 2 ECU/wiring harness
-(4) custom LS2 coil packs

I'm not getting any spark from any of the coil packs. Checked all the grounds found 1 bad ground and fixed it but still no spark. We're all here scratching our heads. Hopefully someone has a possible solution. Thanks in advance.

om3ga · 08-31-2014, 12:12 AM

Possible short elsewhere in the system. Is the ECU located inside the car? Anywhere else that water would have been able to get in and damage components? Missing firewall grommets etc.

tdk3231 · 08-31-2014, 12:15 AM

The ECU is located inside the car. There's a hole in the firewall but it where everything runnings to the ECU but it would of had to enter at the perfect angle.. Which is a possibility but that wouldn't make sense for the car to have started again and then ran for a few miles then shut off.

om3ga · 08-31-2014, 12:28 AM

Check the main fuses in the engine bay on the passenger side near the battery cables. Maybe the Engine Control fuse etc.

I would do a continuity test on them because i literally had one blow on the side where you could not see it. The window on the top does not always help.

These ones.

tdk3231 · 08-31-2014, 12:30 AM

Will do. I'll post an update once I can.

om3ga · 08-31-2014, 12:41 AM

Ignore the finger in that picture pointing to the relays haha.

Make sure to check the 25 Amp fuses.

tdk3231 · 09-01-2014, 07:16 AM

Replaced the fuses. Still no spark

tdk3231 · 09-02-2014, 03:11 AM

Think it might be the CAS?

derass · 09-02-2014, 12:21 PM

Do you have power to the coils? Is the fuel pump priming?

tdk3231 · 09-02-2014, 05:53 PM

The fuel pump is priming. pretty sure the coils do too.

iLagX · 09-02-2014, 07:05 PM

i am having the same problem. i can only get it started with starter fluid
after it starts car drive fine.

have you check
ignition coil
ignitor
wires
spark plugs/wires
distirbutor -- bad crank angle sensor
fuel fuse
fuel pump
Egi
Egi relay
ign cont fuse
engine con fuse
fuel injector ground
fuel filter
ground the head
wiring harness?
engine coolant temp sensor aka ECT

tdk3231 · 09-03-2014, 03:14 AM

Ive checked almost all of that. Next step is CAS. Ive replaced all fuses and checked the harness and associated wiring. After the CAS ill probably check the packs themselves. Just hard to believe that all 4 would fail at once

bushybeardedtaco · 09-04-2014, 12:36 AM

Idk if this would make sense in you're situation but when my ka wasn't getting spark we found out the that the wire from the distributor to the fuel rail went right under the breather hose from the valve cover which pushed it against a sharp edge causing the wire to cut= no spark

Sent from my iPhone using Tapatalk

tdk3231 · 09-04-2014, 01:54 AM

Quote:

Originally Posted by bushybeardedtaco

Idk if this would make sense in you're situation but when my ka wasn't getting spark we found out the that the wire from the distributor to the fuel rail went right under the breather hose from the valve cover which pushed it against a sharp edge causing the wire to cut= no spark

I'll have to check for that to see if it could be similar. Thanks

scott883 · 09-04-2014, 01:00 PM

Spark tester incoming.......................................... ......

tdk3231 · 09-06-2014, 12:32 AM

How would I go about checking the resistance/continuity to my CAS?

08-31-2014, 12:10 AM	#1
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Cranking but no spark So recently took my car to the car wash. Washed it and once I was done the car would crank but wouldn't start. Figured I got something wet since I have hood spacers. Let the car sit for about 20 minutes and it started up. Drove it about 2 miles and died on me but all the acc still work. My set-up -Ka24DE-T -Supertech 0.020" over 8.6:1 Forged pistons -Eagle H-beam rods -Crower 264/264 cams -ARP Head bolts -Cosworth Headgasket -Engine work - block/head cleaned & pressure tested, new freeze plugs, cylinder boring/honing -MAZWORX turbo kit w/ 4" intake -AMS fuel kit w/ 76 lb./hr. injectors -Walbro 255 fuel pump -Custom Magnecore 8.5mm wires -MegaSquirt 2 ECU/wiring harness -(4) custom LS2 coil packs I'm not getting any spark from any of the coil packs. Checked all the grounds found 1 bad ground and fixed it but still no spark. We're all here scratching our heads. Hopefully someone has a possible solution. Thanks in advance.

09-02-2014, 07:05 PM	#11
iLagX Post Whore! Join Date: Dec 2008 Location: 626/714 Posts: 2,940 Trader Rating: (40) Feedback Score: 40 reviews	i am having the same problem. i can only get it started with starter fluid after it starts car drive fine. have you check ignition coil ignitor wires spark plugs/wires distirbutor -- bad crank angle sensor fuel fuse fuel pump Egi Egi relay ign cont fuse engine con fuse fuel injector ground fuel filter ground the head wiring harness? engine coolant temp sensor aka ECT __________________ PARTING OUT S13/S14 NEED PARTS PM ME!

09-04-2014, 01:00 PM	#15
scott883 Zilvia Addict Join Date: Feb 2009 Location: Riverside Age: 34 Posts: 647 Trader Rating: (8) Feedback Score: 8 reviews	Spark tester incoming.......................................... ...... __________________ Sunday night meet and eat 951 // 951Carmeet Instagram

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-31-2014, 12:12 AM	#2
om3ga Zilvia Addict Join Date: Jan 2007 Location: Up and Down! California Posts: 878 Trader Rating: (8) Feedback Score: 8 reviews	Possible short elsewhere in the system. Is the ECU located inside the car? Anywhere else that water would have been able to get in and damage components? Missing firewall grommets etc.

08-31-2014, 12:15 AM	#3
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	The ECU is located inside the car. There's a hole in the firewall but it where everything runnings to the ECU but it would of had to enter at the perfect angle.. Which is a possibility but that wouldn't make sense for the car to have started again and then ran for a few miles then shut off.

08-31-2014, 12:28 AM	#4
om3ga Zilvia Addict Join Date: Jan 2007 Location: Up and Down! California Posts: 878 Trader Rating: (8) Feedback Score: 8 reviews	Check the main fuses in the engine bay on the passenger side near the battery cables. Maybe the Engine Control fuse etc. I would do a continuity test on them because i literally had one blow on the side where you could not see it. The window on the top does not always help. These ones.

08-31-2014, 12:30 AM	#5
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Will do. I'll post an update once I can.

08-31-2014, 12:41 AM	#6
om3ga Zilvia Addict Join Date: Jan 2007 Location: Up and Down! California Posts: 878 Trader Rating: (8) Feedback Score: 8 reviews	Ignore the finger in that picture pointing to the relays haha. Make sure to check the 25 Amp fuses.

09-01-2014, 07:16 AM	#7
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Replaced the fuses. Still no spark

09-02-2014, 03:11 AM	#8
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Think it might be the CAS?

09-02-2014, 12:21 PM	#9
derass Zilvia FREAK! Join Date: Jun 2010 Location: Toronto, ON Age: 33 Posts: 1,182 Trader Rating: (0) Feedback Score: 0 reviews	Do you have power to the coils? Is the fuel pump priming?

09-02-2014, 05:53 PM	#10
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	The fuel pump is priming. pretty sure the coils do too.

09-03-2014, 03:14 AM	#12
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Ive checked almost all of that. Next step is CAS. Ive replaced all fuses and checked the harness and associated wiring. After the CAS ill probably check the packs themselves. Just hard to believe that all 4 would fail at once

09-04-2014, 12:36 AM	#13
bushybeardedtaco Leaky Injector Join Date: Apr 2013 Location: California Age: 24 Posts: 55 Trader Rating: (3) Feedback Score: 3 reviews	Idk if this would make sense in you're situation but when my ka wasn't getting spark we found out the that the wire from the distributor to the fuel rail went right under the breather hose from the valve cover which pushed it against a sharp edge causing the wire to cut= no spark Sent from my iPhone using Tapatalk

09-06-2014, 12:32 AM	#16
tdk3231 Join Date: Aug 2014 Location: Virginia Age: 30 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	How would I go about checking the resistance/continuity to my CAS?