Another NSG thread 93/AOD with a C4 NSS

Gently Used

New Member
Nov 16, 2019
Southern California
I'm hoping somebody can help reassure me that I'm hooking my NSS (NSG for newer cars) up correctly. I have an old Bronco with a C4 that I swapped in the engine and harness from a 1993 5.0 AOD. So I am using the Mustang engine with the old C4. I performed this swap over 20 years ago and it works fine except I have to trick it to pull KOER codes.

My current setup is the original Bronco start circuit which uses Red/Light Blue wires on both sides of the NSS. The NSS works correctly and only allows crank in park and neutral.

The 5.0 from the AOD car uses Lt blue/Yellow (pin 30) and Grey/Red (pin 46) wires to detect if in park or neutral. I currently have bullet connectors on the Lt blue/Yellow and Grey/Red wires and plug them together to trick the computer so I can run KOER tests.

I now want to remove the bullet connectors and wire the Lt blue/Yellow and Grey/Red into the NSS circuit so it will pull KOER when in park while also protecting it from cranking when not in park.

Both of the wiring diagrams I have seen show a path from ignition through the NSS. To me it looks like I can make a parallel connection and splice the Lt blue/Yellow and Grey/Red wires into the Red/Light Blue wires and all will work correctly. Can it be that easy? My concern is that when I hit the starter it's going to send 12V to both the Lt blue/Yellow and Grey/Red wires as well as to the starter solenoid. Is the computer designed to handle this or do I have to come up with a relay setup of some kind to isolate the two circuits?


  • Sponsors(?)

Thread starter Similar threads Forum Replies Date
351crownvic Another 4.6 valve seal 1996 - 2004 SN95 Mustang -General/Talk- 1
S Another Idle surge post with microsquirt Digital Self-tuning Forum 5 Engine Another bad distributor? Fox 5.0 Mustang Tech 39
S Another addition to the fleet The Welcome Wagon 5
MrFoxNutCase Progress Thread Another notchback... 88 OE project 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 7
R Progress Thread Just another 93 convertible project 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 25
Anti_Hero0932 Another pony in the stable 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 15
T Please help, a noob needs help with another exhaust question! 2005 - 2014 S-197 Mustang -General/Talk- 5
D Another Newbie here! The Welcome Wagon 8
LILCBRA Another stumbled upon article 1974 - 1978 Mustang II Talk & Tech 15
A Yet Another Cracked Aqua Dashpad Owner Searching For a Solution 1965 - 1973 Classic Mustangs -General/Talk- 0
M Another newbie. The Welcome Wagon 5
C Another newbie. , again. The Welcome Wagon 10
horse sence You guessed it ,another 67 FB. Conversion Classic Mustang Specific Tech 105
silverlx50 Engine Can yall help me add another 100HP? Fox 5.0 Mustang Tech 19
S Electrical Oh no not another 88’ turn signal thread! Fox 5.0 Mustang Tech 6
Justin87 Engine Yet another explorer intake valve cover question Fox 5.0 Mustang Tech 10
evintho Brakes Another dumb 5-lug swap question. Fox 5.0 Mustang Tech 1
joetrainer31 Progress Thread Got Another One! Pics Fox 5.0 Mustang Tech 90
B Engine Another Poor Idle/Running Rich Thread Fox 5.0 Mustang Tech 8
twogts4us Drivetrain Is it another bad throw out bearing? SN95 4.6L Mustang Tech 0
G Engine Another 393 stroker thread Classic Mustang Specific Tech 0
ChillPhatCat Progress Thread Haven't posted in a looong time... rescuing another 'stang... '89 Vert 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 20
J I want another fox 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 8
L Another rubbing thread - 88 GT Vert lowered with 235/55 x17s 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 14
GaryM Another Newbie The Welcome Wagon 1
killer5.0 Need to move my car to another shop mid mini-tub to transport 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 14
MustangHunter5.0 Hello, another mustang owner here.. The Welcome Wagon 2
T Another newbie The Welcome Wagon 2
D Another newbie to Stangnet in Corona, CA - '88 The Welcome Wagon 7
9 SN95 Another 5.Slow from Alberta, Canada 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 11
Icemanxxxv Not Another New Guy? The Welcome Wagon 1
B '03 GT Another Intake Leak, Time for KB 2.1? 1996 - 2004 SN95 Mustang -General/Talk- 15
F another exhaust question 1965 - 1973 Classic Mustangs -General/Talk- 10
F another exhaust question The Welcome Wagon 1
H Another windstar swap. 1996 - 2004 SN95 Mustang -General/Talk- 0
Woody3882 Another Newbie The Welcome Wagon 1
C Another Newbie The Welcome Wagon 2
A Another one Bites the Dust. RIP Project Eleanor:( 2015+ (S550) Mustang -General/Talk 7
A Fox Another Fox Leaning.. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 5
D Another new guy... (and seeking advice) 1965 - 1973 Classic Mustangs -General/Talk- 15
horse sence Build Thread Another 68 coupe to fast back conversion Classic Mustang Specific Tech 84
Reddevil91 Ok I’m back with another possible, this time Injectors! 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 8
Reddevil91 BBK LTs Another possible buy! Yes or no deal wise? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 11
TGAFire87 Yes Another Wheel And Tire Question. 1965 - 1973 Classic Mustangs -General/Talk- 3
J Another Gt Newbie, Hello From Florida The Welcome Wagon 3
SoCal91LX Another Mustang Guy, Or Am I? The Welcome Wagon 2
B Yes Its Another High Idle Problem SN95 4.6L Mustang Tech 5
T Another High Idle Problem 200 Rpm And Higher...(already Replaced Iac) 1996 - 2004 SN95 Mustang -General/Talk- 6
Neuron Oh No Another Muffler Thread!! 1996 - 2004 SN95 Mustang -General/Talk- 9
Similar threads