Fresh Sr20det swap wont start - cranks and cranks... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

TurbLu · 10-22-2006, 12:20 PM

Ok guys,

My Sr swap is in and wired up. Ive checked the wiring and it all *seems* correct. The power wire sending power to the coilpack plug (Blue/Red) is getting power. Now how do I check to make sure I AM getting spark? Could it be my plugs? I didnt change the plugs in the engine as my autozone here does not carry those NGK plugs. Is there an equivelant plug? They are nice and black and all fouled up, could this be the problem?

1. How do I check for spark if the Engine is not running. (can I do it the old fashion way with a screw driver in the tip of the coilpack?)
2. Is there an equivelant plug to the NGK I can pick up at the AutoZone?

LookOut Nick · 10-22-2006, 12:39 PM

1 Yes
2 Heat Range 6 NGK plugs were available at my local Napa, Id check their.

slow92_s13 · 10-22-2006, 01:29 PM

i use bkr7e's....try that, they are easy to get. have you check all your connections and stuff yet? oh and check ur fuel lines, not saying ur dumb...but its a common problem of hooking up the fuel lines backwards lol.

TurbLu · 10-22-2006, 02:31 PM

Ok... So heres my update:

I have no spark coming from the coilpacks.
Fuel lines ae hooked up ok.

I have my wires done accordingly to all the guides online. Only 2 wires are even Ignition Related in all the tuturiols. Ive tested them with a test light and they are showing to have power. Now How do I check the ignitor via Voltmeter to make sure the ECU is sending the pulses?

TurbLu · 10-22-2006, 04:09 PM

bump for help... its sunday and I'd love to hear this engine start...

Chernobyl · 10-22-2006, 05:06 PM

turn your CAS 180 degrees

turn key

hear engine run

misfitsfreak81 · 10-22-2006, 05:17 PM

check your CAS for any damage. look at it VERY CLOSELY, even the smallest ding or crack will screw it up. just pull the cover off to check it. you can take a paper clip and back-probe the wires on the ignitor chip. DO NOT EVER pierce the plastic on the wires, always backprobe. im sure that the spec. voltage will be in the FSM, i dont remember it right off hand. you can also get a plug tester at any auto part store, i would recomend that over the screwdriver trick. the FSM has a great step by step procedure for checking the ignitor, CAS, and the ECU as well as how to check continuity for all the aformentioned. oh also if its your cas you most likely wont get any firing of the injectors either, be sure to check those as well. hope this all helps. keep us updated as to what you find.

mike

TurbLu · 10-22-2006, 06:54 PM

Quote:

Originally Posted by Chernobyl

turn your CAS 180 degrees

turn key

hear engine run

CAS wont cause a no spark issue which is what I have for sure now. So my next step is to find the fsm for the SR20det.

TurbLu · 10-22-2006, 09:01 PM

CAS is fine. But I do not know how to trouble shoot the Ignitor chip via the FSM (I cant find it).

How many engine grounds should I have on this swap? I only have 1 hooked up to the intake manifold. Is there anymore. What about the one on the back of the block behind the valve cover?

mandoz85 · 10-22-2006, 11:11 PM

what number Is on Your ECU, you might have the wrong one or a bad ecu.

Also you can get NGK spark plugs at Meyers, they have them in stock.

TurbLu · 10-22-2006, 11:24 PM

ECU 62 - says its correct via the fact...

Update: I think my dash wiring may be off as when I pull the key out the red lights (2 on the right side) on the dash stay on for a few minutes before shutting off. Is this related to the dash harness conversion or the Ka harness conversion behind the passenger headlight?

ladiesman8527 · 10-23-2006, 09:51 AM

the ignitor/power transitor chip test is located in Engine Control page 202....or atleast it is in my FSM that i got from camel-towing.com...hope that helps.

TurbLu · 10-23-2006, 10:32 AM

thanks... now that its warm enough to go outside Im going to start double checking all my wiring and make sure I dont have back-power going through my grounds...

broken240sx · 10-23-2006, 10:41 AM

there is an important ground at the back of the valve cover, it isn't part of the removable harness, folow the coilpack wires back and you'll find it, if you didn't connect that ground you won't get spark

10-22-2006, 12:20 PM	#1
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	Fresh Sr20det swap wont start - cranks and cranks... Ok guys, My Sr swap is in and wired up. Ive checked the wiring and it all seems correct. The power wire sending power to the coilpack plug (Blue/Red) is getting power. Now how do I check to make sure I AM getting spark? Could it be my plugs? I didnt change the plugs in the engine as my autozone here does not carry those NGK plugs. Is there an equivelant plug? They are nice and black and all fouled up, could this be the problem? 1. How do I check for spark if the Engine is not running. (can I do it the old fashion way with a screw driver in the tip of the coilpack?) 2. Is there an equivelant plug to the NGK I can pick up at the AutoZone?

10-22-2006, 12:39 PM	#2
LookOut Nick Zilvia Addict Join Date: Aug 2006 Location: East Coast Age: 39 Posts: 816 Trader Rating: (0) Rides Gallery: LookOut Nick Feedback Score: 0 reviews	1 Yes 2 Heat Range 6 NGK plugs were available at my local Napa, Id check their. __________________ *Team Pterodactyl*

10-22-2006, 01:29 PM	#3
slow92_s13 Join Date: Sep 2006 Location: Bristol, TN. Age: 40 Posts: 48 Trader Rating: (0) Feedback Score: 0 reviews	i use bkr7e's....try that, they are easy to get. have you check all your connections and stuff yet? oh and check ur fuel lines, not saying ur dumb...but its a common problem of hooking up the fuel lines backwards lol. __________________

10-22-2006, 11:11 PM	#10
mandoz85 Zilvia Member Join Date: Apr 2003 Location: Las Vegas, NV Age: 39 Posts: 207 Trader Rating: (0) Rides Gallery: mandoz85 Feedback Score: 0 reviews	what number Is on Your ECU, you might have the wrong one or a bad ecu. Also you can get NGK spark plugs at Meyers, they have them in stock. __________________

10-22-2006, 02:31 PM	#4
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	Ok... So heres my update: I have no spark coming from the coilpacks. Fuel lines ae hooked up ok. I have my wires done accordingly to all the guides online. Only 2 wires are even Ignition Related in all the tuturiols. Ive tested them with a test light and they are showing to have power. Now How do I check the ignitor via Voltmeter to make sure the ECU is sending the pulses?

10-22-2006, 04:09 PM	#5
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	bump for help... its sunday and I'd love to hear this engine start...

10-22-2006, 05:06 PM	#6
Chernobyl Zilvia FREAK! Join Date: May 2003 Location: Denver, CO Age: 42 Posts: 1,563 Trader Rating: (6) Feedback Score: 6 reviews	turn your CAS 180 degrees turn key hear engine run

10-22-2006, 05:17 PM	#7
misfitsfreak81 Zilvia Junkie Join Date: Dec 2005 Location: northern suck Posts: 354 Trader Rating: (1) Feedback Score: 1 reviews	check your CAS for any damage. look at it VERY CLOSELY, even the smallest ding or crack will screw it up. just pull the cover off to check it. you can take a paper clip and back-probe the wires on the ignitor chip. DO NOT EVER pierce the plastic on the wires, always backprobe. im sure that the spec. voltage will be in the FSM, i dont remember it right off hand. you can also get a plug tester at any auto part store, i would recomend that over the screwdriver trick. the FSM has a great step by step procedure for checking the ignitor, CAS, and the ECU as well as how to check continuity for all the aformentioned. oh also if its your cas you most likely wont get any firing of the injectors either, be sure to check those as well. hope this all helps. keep us updated as to what you find. mike

10-22-2006, 09:01 PM	#9
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	CAS is fine. But I do not know how to trouble shoot the Ignitor chip via the FSM (I cant find it). How many engine grounds should I have on this swap? I only have 1 hooked up to the intake manifold. Is there anymore. What about the one on the back of the block behind the valve cover?

10-22-2006, 11:24 PM	#11
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	ECU 62 - says its correct via the fact... Update: I think my dash wiring may be off as when I pull the key out the red lights (2 on the right side) on the dash stay on for a few minutes before shutting off. Is this related to the dash harness conversion or the Ka harness conversion behind the passenger headlight?

10-23-2006, 09:51 AM	#12
ladiesman8527 Zilvia Junkie Join Date: Dec 2005 Location: Collierville, TN Age: 38 Posts: 429 Trader Rating: (0) Feedback Score: 0 reviews	the ignitor/power transitor chip test is located in Engine Control page 202....or atleast it is in my FSM that i got from camel-towing.com...hope that helps.

10-23-2006, 10:32 AM	#13
TurbLu Zilvia Member Join Date: Sep 2006 Location: Las Vegas Posts: 197 Trader Rating: (0) Feedback Score: 0 reviews	thanks... now that its warm enough to go outside Im going to start double checking all my wiring and make sure I dont have back-power going through my grounds...

10-23-2006, 10:41 AM	#14
broken240sx Leaky Injector Join Date: Jul 2005 Location: new york Posts: 111 Trader Rating: (0) Feedback Score: 0 reviews	there is an important ground at the back of the valve cover, it isn't part of the removable harness, folow the coilpack wires back and you'll find it, if you didn't connect that ground you won't get spark