N20zuki

So awhile back I tried to run my buddies HP tuners that we tuned my PCM with to realtime the motor and did not read and report the data. Is there any additional wiring to the OBD II port that I need other then what I did?

This is in my 88 Monte Carlo, I have power to the port as we have flashed the PCM and my code reader works fine, just cant monitor the engine.

N20zuki

Seriously nobody knows?

gagliano7

There is no additional wiring. You have to make sure your pcm can use rtt and you have to enable rtt and do a write entire. There is info on hptuners board.

MontecarloDrag

iTrader: (3)

To be able to do real time tuning using HPTuners you need to apply a custom OS to your current tune, select which RTT mode you want and write entire.
Then when you open the scanner and connect to the vehicle, the RTT option will be enabled.
If you don't see a RTT option under the HP-OS tab it means it is not available for your operating system and RTT is not possible for your PCM, unless you flash another OS

soundengineer

iTrader: (16)

You also have to select the set of rtt tables you want to see when you write the tune.. in the main tab there's a drop down box for rtt....make sure it says something other than "disabled"