Another, "My SR wont start thread" - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tearlessj · 06-15-2008, 05:28 PM

Well I installed my SR, its cranks but wont spark. I get fuel but no spark. I just replaced the CAS cause the one I recieved was busted. Ok, so I ran the multimeter on the ECU side of the ignitor clip (on the wiring harness). I got 12v on all the pins constantly. Even when I was NOT cranking it. Plugged in the ignitor, cranked the motor, checked the pins on the 'out" side of the ignitor and nothing. Any ideas?

Tearlessj · 06-17-2008, 01:39 AM

Bump, Could it be the ignitor? Ecu? or wiring? I was told that the ignitor could be wired any way, as long as it was the same wire going through out the other side.

240esux · 06-17-2008, 02:22 AM

check all your grounds like on the fuse box and stuff like that.it could be the ignitor. i had the same problem, and it was just cause my ignitor wasnt plugged in rite.

tt99ol · 06-17-2008, 03:45 AM

did you check for constant power at the coils
center wire should be B+ with the key on
and check the coil harness ground on the back of the head
and the ground from back of the head to firewall

hstylez · 06-17-2008, 05:37 AM

As mentioned, check your grounds per service manual. The valvecover needs a ground to it. I wasnt getting spark because mine wasn't grounded..

dori_sil8t · 06-17-2008, 06:41 AM

when you put the motor in. did u switch the wires that plug into the body harness?.. if so the ecu ground thats located under the fuse panel on the pas side id check that too

Tearlessj · 06-20-2008, 12:26 AM

Quote:

Originally Posted by dori_sil8t

when you put the motor in. did u switch the wires that plug into the body harness?.. if so the ecu ground thats located under the fuse panel on the pas side id check that too

I dont quite understand what your saying. I did the harness via frsport. Thanks! Im about to go check all my grounds again.

FusionR240sx · 06-17-2008, 10:28 AM

i'm having the same problem.
besisdes that my SR was in before and started and doesn't start anymore.

dori_sil8t · 06-17-2008, 10:42 AM

when u put the new cas in did u have it at tdc and line up the mark on the cas? also check to make sure the plug is all the way clipd in too.

kafanylovesme · 06-17-2008, 10:42 AM

If the ignitor is your problem, I have an extra one. PM with offer if you want it.

06-15-2008, 05:28 PM	#1
Tearlessj Nissanaholic! Join Date: Feb 2007 Location: Memphis Age: 33 Posts: 1,907 Trader Rating: (6) Feedback Score: 6 reviews	Another, "My SR wont start thread" Well I installed my SR, its cranks but wont spark. I get fuel but no spark. I just replaced the CAS cause the one I recieved was busted. Ok, so I ran the multimeter on the ECU side of the ignitor clip (on the wiring harness). I got 12v on all the pins constantly. Even when I was NOT cranking it. Plugged in the ignitor, cranked the motor, checked the pins on the 'out" side of the ignitor and nothing. Any ideas? __________________ Nagasaki Motors Friends help you move. Real friends help you move bodies.

06-17-2008, 01:39 AM	#2
Tearlessj Nissanaholic! Join Date: Feb 2007 Location: Memphis Age: 33 Posts: 1,907 Trader Rating: (6) Feedback Score: 6 reviews	Bump, Could it be the ignitor? Ecu? or wiring? I was told that the ignitor could be wired any way, as long as it was the same wire going through out the other side. __________________ Nagasaki Motors Friends help you move. Real friends help you move bodies.

06-17-2008, 03:45 AM	#4
tt99ol Zilvia Addict Join Date: Jan 2005 Location: quartz hill CA Age: 38 Posts: 644 Trader Rating: (8) Feedback Score: 8 reviews	did you check for constant power at the coils center wire should be B+ with the key on and check the coil harness ground on the back of the head and the ground from back of the head to firewall __________________ Need automotive work done in the antelope valley? Ask me how i can help.

06-17-2008, 05:37 AM	#5
hstylez Zilvia Member Join Date: Mar 2006 Location: Ohio Posts: 253 Trader Rating: (4) Feedback Score: 4 reviews	As mentioned, check your grounds per service manual. The valvecover needs a ground to it. I wasnt getting spark because mine wasn't grounded.. __________________ S13 Coupe SR20DET

06-17-2008, 06:41 AM	#6
dori_sil8t Zilvia Junkie Join Date: Sep 2007 Location: Ontario Age: 42 Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	when you put the motor in. did u switch the wires that plug into the body harness?.. if so the ecu ground thats located under the fuse panel on the pas side id check that too __________________ unionautoclub.com

06-17-2008, 02:22 AM	#3
240esux Zilvia Junkie Join Date: Dec 2006 Location: rialto. Posts: 354 Trader Rating: (2) Feedback Score: 2 reviews	check all your grounds like on the fuse box and stuff like that.it could be the ignitor. i had the same problem, and it was just cause my ignitor wasnt plugged in rite.

06-17-2008, 10:42 AM	#9
dori_sil8t Zilvia Junkie Join Date: Sep 2007 Location: Ontario Age: 42 Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	when u put the new cas in did u have it at tdc and line up the mark on the cas? also check to make sure the plug is all the way clipd in too. __________________ unionautoclub.com