`7730 Optical VSS Input Pin #?
01-27-2006, 05:53 PM
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Car: 80 GMC K35
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Axle/Gears: 4.10
`7730 Optical VSS Input Pin #?
Hey guys!
I'm gonna burn a prom for my 7730 ECM that disables a few emmissions systems, VATS, etc, but also switch it from the AC VSS input from the transmission to an optical 2000 ppm input from my speedometer head.
Which pin should be used for the 2000 ppm input pint? Or is it the same as the original VSS Hi input pin?
I'm gonna burn a prom for my 7730 ECM that disables a few emmissions systems, VATS, etc, but also switch it from the AC VSS input from the transmission to an optical 2000 ppm input from my speedometer head.
Which pin should be used for the 2000 ppm input pint? Or is it the same as the original VSS Hi input pin?
01-27-2006, 11:39 PM
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
You need to send the 2000ppm signal to pin C6. You also need to modify the PROM and change it to non-magnetic VSS.
It is NOT the same as VSS_HI. The optical uses VSS. You are using opitical now right?
It is NOT the same as VSS_HI. The optical uses VSS. You are using opitical now right?
01-28-2006, 12:22 AM
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Car: 80 GMC K35
Engine: TPI 355
Transmission: NV4500
Axle/Gears: 4.10
Alright, thanks!
Thats what I needed to know
I know I gotta change the prom, but didn't know which was the new pin to use with it
Thats what I needed to know
I know I gotta change the prom, but didn't know which was the new pin to use with it
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