BM Lockup
07-25-2015, 07:12 PM
#1
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Car: 74 Nova prostreet 87 Iroc Z28
Engine: 427 671 blower 350 Built
Transmission: 700R4 both
Axle/Gears: Dana 60 an a 323 posi.
BM Lockup
I have a 87 iroc no computer an hooked up a bm lockup converter today part #70244 non electric the instructions say with key on no run the lite on the box is green it is suppose to be red no lockup. the 2 brake lite wires are still connected an the yellow wire from the bm box an A on trans. is tied in to 1 side of the brake switch D on trans is ground. what could be wrong please help. Thanks.
07-25-2015, 08:38 PM
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Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: BM Lockup
The yellow wire should be spliced into the purple wire at the brake switch. If it's spliced to the lt blue wire, presumably, if you press the brake pedal, the light will change color, key on. That is only a guess based on looking at the install pdf for the B&M. Not trying to be an -ss but, your post was very difficult to read/understand.
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