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It's "Manifold Absolute
High Voltage" I already know that's my MAP sensor, I changed it twice
in 9 days.. is that code causing hp/power issues to me or not? am I
loosing power? what should I do to solve the problem once and for all?
I cleared it like 3 times with my Diablo Predator but it still there!
I can't speak for EFILive or LS2Edit, but in HPTuners, you can turn off the master switch for that code under the DTC->Airflow tab. The code could be because you're boosted and it's seeing high/max voltage due to that. Remember, the car doesn't know there's a supercharger on it. Or there's a problem in the wiring harness.