What pin does the TMAP sensor temperature output connect to on the PCM? I can't find an LT4 wiring diagram anywhere.
Try this.
Thanks. I was wondering if the trucks could be wired the same as the LT4s. The temp output of the TMAP connects to X1-13, which is the outside ambient input of the truck PCM. I guess it's the tune that determines the mapping of the sensors.
X2 49 is the #1 input, lt4 has multiple sensors with addition of supercharger (blower).
Do you happen to know where the ambient sensor inputs are for the LT4? Are there ambient PCM inputs on the LT4 or is ambient only fed to the BCM?