94 Silverado swap questions

[Jeebalow]

Speedo, tach, SES or MIL signals come from the new PCM just cut the old ones and splice in the new ones to your gauges (at least that's how it worked on my 95). Engine coolant you can re thread your stock sensor to match the LS head and just thread it into the passenger side head (that's what I did) or you can use the 3 wire camaro sensor and use one wire for PCM and the other for your gauges, I read that this was off so I used the 95 sensor. Oil sensor, buy an adapter and use the 95 oil pressure sender. I didn't touch anything for voltage gauge or fuel gauge.

Also, I completely got rid of the drac unit and the old ECM. The LS PCM was tuned to give the correct 4000 PPM signal for the speed to read which means the cruise control module will be getting the same signal as before as well and should work.

lt1swap.com for the new PCM and alldatadiy are where I got my wiring info.