I posted this on the Haltech forums last night, but I wanted to see if any one here may have some insight.

I am tuning a 2jz with an E6X and I am seeing a data logging issue with the MAP signal. The issue is that the MAP value in the log swings drastically from what it actually is. I can see that the ECU is not referencing an erroneous MAP value for operation as the logged timing value corresponds to the operating condition. I can also see with the map tracing that the sensor and ECU are operating correctly, it is just the MAP value being recorded into the log that is wrong. Just for numbers sake, I can peddle the car to 2psi of boost and the value for the MAP sensor in the log will vary from -6 to 14, however the logged value of the ignition timing for that same run corresponds to 2psi and does not reflect the sing in logged MAP value.

So, has anyone ever seen this before?

Ryan