The VATS signal wire will be labeled (in your vehicles service manual) as VATS, Fuel enable wire or circuit
number 229 and is normally a dark blue wire. The pin number at the PCM varies depending on application:
TBI/TPI 89-92 -------- pin# B6 (might be a white wire instead of dark blue)
TBI/TPI 91-92--------- pin# F10 of the ECM's 32pin E-F connector.
LT1 92-93 ------------- pin# 19 ("A19") of the PCM's 32 pin red connector
LT1 94-97 ------------- pin# 25 ("A25") of the PCM's 32 pin red connector
LS1 1998 -------------- pin# 11 of the PCM's 80 pin red connector
LS1 99-02 ------------- pin# 30 of the PCM's 80 pin red connector
3.8L V6 95-97 -------- pin# 55 of the blue PCM connector
3.4L DOHC V6 95 ---pin# A14
PCM# 16187424 -----pin D6 of the PCM's C3 connector
If your Pin location is different from that listed above Please let us know so that we may update our information.
The VATS/Fuel enable wire can also be found on the BCM’s 10 pin blue connector, #230, position 'E' .
In older vehicles you will find the VATS wire on the PASSkeyII/VATS decoder module. If your pin positions is
different please let us know so we can update our information.