HydroStream6

iTrader: (16)

I recently put a 4L80e in my 2004 GTO using a standalone TCI controller. My car's PCM no longer gets the VSS signal because it goes into the standalone controller. I want to get that signal back into the stock computer so that I can do some logs of RPM vs speed. I tried tee'ing into the VSS off of the trans and going back into the stock VSS plug to no avail. Any ideas?

Also I just thought of this, I wonder if the TCI software can log RPM vs speed because it had both already... hmmm... I'll have to check when I get home.

Thanks,
Adam

Lextech

iTrader: (18)

Why didn't you use the stock PCM to control the 80e? It only involves 5 wires and a reflash.

Jeff

HydroStream6

iTrader: (16)

The GTOs PCM cannot control a 4L80e. There is no segment for the 4L80e that uses the same OS as the GTO.

Lextech

iTrader: (18)

HHMMM, I did not know that.

HydroStream6

iTrader: (16)

Still wanna do this...

flame

iTrader: (13)

So the TCI controller was cheaper than swapping to a GM PCM that could control the motor and 4L80E? Why not just swap in a PCM that can do what you want?

HydroStream6

iTrader: (16)

Gto pcm cannot control a 4l80 like the fbody pcm. At least it wasn't possible when I did the swap.

flame

iTrader: (13)

Could you not swap to a f-body pcm and get what you want?

HydroStream6

iTrader: (16)

The gtos use a totally different pcm so it would require a whole harness swap among other things. It's just not worth it. Once I figure this problem out the car will be perfect. It drives perfect now the only reason I wanna do this is to use some different features of the pcm.

HydroStream6

iTrader: (16)

still trying to figure it out

Lextech

iTrader: (18)

I PMd you about a year ago. I have a 2004 GTO tune with a 4l80e segment installed in it. I did not do the segment swap. It is not doable to normal people. Someone MUCH smarter than me put it together.

Jeff

Frost

iTrader: (45)

I have had 2 GTO bins that some bench wizard(s) had segment swapped. When you open the file they appear to have been swapped as well. Neither one of them worked on the actual car though.

The other option is just like the f-body has. Run the 80e with the 60 segment and a couple of wiring changes. This is the best way anyway as it keeps the converter from unlocking every time throttle is lifted.

HydroStream6

iTrader: (16)

The TCI controller works great for me so far. Converter lockup is like factory. I just gotta get the vss back to thw pcm lol. I'll see what I can do with a wss this week.