i have a 90 notch 4 cyl. im converting to 8.my efi harness that comes across and meets with the dash harness has a black and a grey plug(2),my harness coming out by the brake booster has (1)brown plug i checked my 91 and it has 2 plugs as does my 89.please help????
87,88,89 harnesses can be swaped. 90's are all by themsleves because of the dual grey/black dash connectors and airbags and 91,92,93 are all compatable they all have airbag and single brown harness connection.
THe 91 should only have the single brown connector unless its been converted before and someone swapped dash harnesses.