so i deleted my 97's black box pcm last week, and to my surprise.. my speedometer still reads wrong and my gear indicator light is not on!
the speedometer reads fine until 30 MPH, anywhere after that is 5 mph too fast (used GPS AND obd2 monitor to check)
i used B5 (dark green) labeled "Vehicle speed signal" on the c100 firewall connector for my vss output..(using lt1swap harness instructions for my harness)
i noticed though on my LS harness diagram, the Vss output wire for the speedometer has a description off to the side that reads "4000 pulse per mile signal"..
there is another wire on the C100 connector that (according to the pinouts for c100 via lt1swap) has the same description about the 4000 pulses per mile signal... this one is D4 and is dark green with a white stripe according to the info.
does anyone know if i will get a correct reading if i swap this wire from b5 to D4?
as to my gear indicator light not working, i am completely lost on that one. if anyone could please help out, i'd appreciate it greatly.
here is a link to the c100 plug pinout http://lt1swap.com/1999_vortec_5.7/i...r_end_view.htm