Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk > S Chassis

S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


Reply
 
Thread Tools Display Modes
Old 05-18-2020, 01:29 PM   #1
snipper17
 
Join Date: Nov 2009
Location: Saskatchewan, Canada
Age: 29
Posts: 17
Trader Rating: (0)
snipper17 is an unknown quantity at this point
Feedback Score: 0 reviews
S13 Power FC receiving no Power

Hey everyone, looking for some ideas / help diagnosing my Power FC. The vehicle is a 1991 180sx with a redtop and the factory #62 ECU. I got a good deal on a Blacktop S13 Power FC (414BN017) and after doing some research on the forum and discovered it's only a few pins different to wire in. I began following the Pinout Schematics between the factory #62 harness and the J4 ECU. I noted the following :

#2 is now #3
#3 is now #2
#5 is now #8
#8 is now empty
#9 is now empty
#11 is now #106
# 24 is now a CEL
#25 is now #9
#102 is now #111
#106 is now empty
#111 is now #102

Now my new Power FC does not turn on. I found that the #38 and #47 are not supplying Power, and I was able to jump the EGI relay between the #3 and #5 pins on itself to get it to turn on. However, at the EGI Relay, I found that there was Power flowing on 3 of the 4 wires with the ignition turned on ( 12v on relay pins 1 and 5 with the battery, and with the key turned turned to the on position Pin 2 is getting 8v from the Red w/Black wire from ECU pin #4 [ECU Relay], which should be a ground). I have opened up the Power FC and there is no sight of any shorts or defects, and I was able to confirm that the power was at the Power FC. Any ideas are appreciated, I have tried many things over the past few weeks and I'm running out. I've followed back all my chassis grounds and they are all in tact, continuity between all affected wires has been perfect.

Last edited by snipper17; 05-18-2020 at 04:53 PM.. Reason: Problem reoccured after initially thinking it was solved. More details added
snipper17 is offline   Reply With Quote
Sponsored Links
Old 05-21-2020, 08:32 PM   #2
snipper17
 
Join Date: Nov 2009
Location: Saskatchewan, Canada
Age: 29
Posts: 17
Trader Rating: (0)
snipper17 is an unknown quantity at this point
Feedback Score: 0 reviews
opened up the back of the FC and found this. One end goes to pin #105 ( Fuel Pressure Control Module) and the other end goes to ECU Power Pins #47 and #38. However there is only a slight flicker of continuity between both ends of this wire
snipper17 is offline   Reply With Quote
Old 05-21-2020, 08:33 PM   #3
snipper17
 
Join Date: Nov 2009
Location: Saskatchewan, Canada
Age: 29
Posts: 17
Trader Rating: (0)
snipper17 is an unknown quantity at this point
Feedback Score: 0 reviews
https://imgur.com/gallery/C3lgpgt
snipper17 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 03:58 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™