Speedo works.
Wired in to pin A32 eehack shows right
Got error code 97 because there no speedo on wire.
uncheck Vss Signal Diagnostic (Error 97) i tuner pro and flash ccm.

If it uses water temp you cant do anything.
Cooling after engine temp is the most important.

Aldl file maybe you can change the values ​​for gauge after your sensor 200f = ohm to oem ohm = f.
...

Is this only for trans fan ??

You cant change parameter in editor this is what ecu use.

Okay you can set temp.
found this https://ls1tech.com/forums/pcm-diagnostics-tuning/1084125-4l60e-temp-vs-resistance.html

The eehack show the speed.
But not speedo gauge.
I dont think its going to work tryed different calculation.
Need to wired me to vvs signal from vss sensor its yellow on pin A32 ??

maby take the trans temp instead of engine temp
For this you need a hack for adresses

Its over 10 years ago i hade 6395 ecm dont remember where i foud it,
When i hade ecm to control a relay to the cooler fan, it read from ecms tempsensor.
Pind some output that ecm didint used change...

The tempsensor use ohm and gauge converts it to f or c (the gauge has 0-90 ohm need a sensor with 0-90 ohm).
Diffrent values between senor, example1 has 0_-450 ohm other 0-90 ohm that can give...

Its a 350 lt1 from corvette c4 1994 and pcm 16181333.
I installed it in my el camino ss 1970 for 10 years ago.
Bought aftermarket tacho and speedo (china:innocent2:) , the old was from a van ....

The pcm pinout show 4000 ppm on 2 chart i looked at.
So pcm strecthes or shorts the pulse to match speedo ?

Trying to understand the 4000 ppm output.
Does the ecm send 4000 ppm to speedo when you change values after tire change or change output ppm to example 4030 ppm ?

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