Pin location for vehicle speed buffer

Tiny
GNLSMAMA
  • MEMBER
  • 1992 CHEVROLET SUBURBAN
  • 43,000 MILES
Brown and dark blue wire on a Delphi ECM #16147060? Truck not shifting w/o those wires. Transmission was transplanted from a donor and for some reason they are not there. Help!
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Friday, September 21st, 2012 AT 1:18 AM

3 Replies

Tiny
ASEMASTER6371
  • EXPERT
Truck will shift without those wires. The governor regulates the shifting in this trans.

Did you take the sensor from your trans and install it on the donor? Are they the same trans?

Roy
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Friday, September 21st, 2012 AT 2:05 AM
Tiny
GNLSMAMA
  • MEMBER
I believe it needs the vehicle speed buffer to reference vehicle speed. Swapped in a 4L80e transmission and the harness. Tranny goes into limp mode.
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Friday, September 21st, 2012 AT 4:15 AM
Tiny
ASEMASTER6371
  • EXPERT
What was in it before?

Roy
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Friday, September 21st, 2012 AT 10:00 AM

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