93 Blacktop SR Swap problem HELP PLEASE - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

chipsahoy · 02-09-2014, 09:40 PM

Dear fellow Zilvian's,

Okay so i just finished my S13 SR20det Blacktop with J4 ecu and wiring harness. I finished and turned the key and nothing. my fuel pump turns on and it cracks but not starting at all. I know that the j4 blacktop wiring harness as some different colored wires at the 2 plugs next to the battery and i'm not sure if i wired it correctly. Anybody that wired this up before with the OEM j4 harness and ecu can to please tell/show me how you did this please?

frankies1390 · 02-12-2014, 01:50 PM

what do u mean it cracks? turns over? i would check the grounds, then move to starter signal wire. sounds like u have ignition power but its not reaching to ur starter (if its not turning over) but if it is make sure u have power to ur ecu first.

blkvrtswp · 02-12-2014, 02:33 PM

Verify the CAS / timing is 100% perfect.

chipsahoy · 02-19-2014, 09:45 AM

Okay so I figured out why it wouldn't start. I didn't have my ignition coil wire wired in correctly (blue w/red stripe) so I wired it in with the main ignition wire (black w/red stripe) and it tried to start but no dice. So I replaced the old spark plugs with new ones and it started and runs great.

02-09-2014, 09:40 PM	#1
chipsahoy Leaky Injector Join Date: Dec 2013 Location: Georgia Age: 32 Posts: 59 Trader Rating: (0) Feedback Score: 0 reviews	93 Blacktop SR Swap problem HELP PLEASE Dear fellow Zilvian's, Okay so i just finished my S13 SR20det Blacktop with J4 ecu and wiring harness. I finished and turned the key and nothing. my fuel pump turns on and it cracks but not starting at all. I know that the j4 blacktop wiring harness as some different colored wires at the 2 plugs next to the battery and i'm not sure if i wired it correctly. Anybody that wired this up before with the OEM j4 harness and ecu can to please tell/show me how you did this please?

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02-12-2014, 01:50 PM	#2
frankies1390 Zilvia Junkie Join Date: Nov 2010 Location: Eugene Posts: 446 Trader Rating: (9) Feedback Score: 9 reviews	what do u mean it cracks? turns over? i would check the grounds, then move to starter signal wire. sounds like u have ignition power but its not reaching to ur starter (if its not turning over) but if it is make sure u have power to ur ecu first.

02-12-2014, 02:33 PM	#3
blkvrtswp Zilvia Addict Join Date: Oct 2012 Location: NY Posts: 691 Trader Rating: (9) Feedback Score: 9 reviews	Verify the CAS / timing is 100% perfect.

02-19-2014, 09:45 AM	#4
chipsahoy Leaky Injector Join Date: Dec 2013 Location: Georgia Age: 32 Posts: 59 Trader Rating: (0) Feedback Score: 0 reviews	Okay so I figured out why it wouldn't start. I didn't have my ignition coil wire wired in correctly (blue w/red stripe) so I wired it in with the main ignition wire (black w/red stripe) and it tried to start but no dice. So I replaced the old spark plugs with new ones and it started and runs great.