Ok heres the deal. I put these trans am tail lights on my formula today and everything works but when I turn on my head lights or parking lights the tail lights dont light up?! Anyway everything else works like: brake lights, turn signals and reverse light. I didnt spice into any wires cause I have the whole harness and connected it wher its supposed to be right behind the back seat under the rug. Near this connection ther was also another extra small connector with 3 wires coming out of it on the trans am tail light wiring harness....I dont know what these are for.. should these be connected to something??? Any one who had done this swap please help me out. Thanks

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88 Firebird Formula WS6
305 TPI 5 speed
B&m Ripper shifter
MSD Blaster coil
TPIS airfoil
Hypertech fan switch
TPIS 170 degree thermostat
3 inch flowmaster exhaust
alt +crank pulleys
15.084 @ 92.41 mph ALL RACING MODIFICATIONS PERFORMED BY JOHN-OOTZ RACING INC.

 

How about the other parking lights, like on the front/sides of the car? It's possible that you simply blew the fuse.

 

The outer two lights on both sides should have three wires connected (1 - Parking Light 2, - Turn and Stop, 3 - Ground). And the bulb should have two filaments in them. I've install Trans Am light on my Firebird. I hope this answer you question.

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90 Firebird SSA
Accel Super Coil
8mm Accel Ignition Wires
NKG Plautum Plugs
K&N Filter


Flowmaster
Bell Tech Drop Spindles
Edelbrock PanHard Bar
Lakewood Lower Control Arms
Wonderbar IROC-Z
KYB GR2 Struts
KYB Gas-a-Just Shocks
PST Suspension Polygrapite Bushings All Round
170 Degree Thermostat
36mm WS6 Front Sway Bar
24mm WS6 Rear Sway Bar

Trans Am Tail Lights
Trans Am Wrap Around Wing
Trans Am 16" Alum rims

Tinted Windows 90% 50%
Overhead Console
Power Windows
Power Locks
T-tops