Getting Code P1516 after Shaner TB and Halltech Stinger

[liqwid_vette]

I installed a Shaner ported TB and Halltech Stinger on my 98 C5. I am getting a PCM code 1516 often. "Reduced Engine Power" on DIC and car has no power. I pull over, clear code and runs fine. Will a dynotune fix this problem or is there something wrong with TPS sensor. Anyone else had this problem? TIA for any help. It is greatly appreciated. Thanks, Jeremy.

[ToplessTexan]

Sounds like the PCM is not seeing the voltages at the TPS that it expects. Are you seeing this at just extreme throttle positions? I recall seeing people fiddling with getting these adjusted, try a search. It sounds too me like a TB issue, not tuning.

[ToplessTexan]

Maybe something along these lines:

http://forums.corvetteforum.com/show....php?t=1121001

Ignore the predicted airflow flow comments there, they're relevant only if you're seeing a P1514, not a P1516.

One other thought is that there was a TAC module service bulletin ages ago that addressed a condition that would trigger this code. I doubt that's your issue and that your car has had that update, but something to be aware of.

[Blown-Interceptor]

Originally Posted by ToplessTexan

Maybe something along these lines:

http://forums.corvetteforum.com/show....php?t=1121001

Ignore the predicted airflow flow comments there, they're relevant only if you're seeing a P1514, not a P1516.

One other thought is that there was a TAC module service bulletin ages ago that addressed a condition that would trigger this code. I doubt that's your issue and that your car has had that update, but something to be aware of.

I am getting the same P1516 code. TB is stock, anyone know the part number I might need?

Thanks,
Jason