p0129 means the MAP sensor is out of range. More than likely, you don't have it hooked up right or you added fuel with the AFC. This will trip the ECU with a code, and go into limp mode. You then won't be able to go over 3500 rpm with out it cutting out. I know this because it just happened to me over the weekend. My signal wire on the MAP sensor pulled out. I couldn't go over 3500 rpm and threw the same code. I fixed the the wire and needed to reset the ECU to get it to run properly.
Pap
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