I had my tuner tune my car on the dyno but something weird is happening. The car is showing 0 throttle at some RPM's during the tune on the utec. My tuner doesn't know what the problem is. Their would be numbers their and then it would drop to 0. Also the graph would climb and then be all over the place. Do you think this is a probelm with the utec. I will appreciate any advice. The car has a turbonetics kit on it with a Tial44 wategate and an open dump.

 

Is your tuner familiar with utec? Did he claibrate the TPS?

 

He is familiar with utec but he has not tuned a Z on it before only evo's.