So I got a trouble code, P0335- crankshaft position sensor A circuit, my friend wired my piggyback which is the AEM FI/C, if the wires were hooked up wrong on there could this be the problem why the CEL popped up? My car right now is probably in limp mode, could this be the source of the problem? thanks ahead

 

also is CKP P stand for crankshaft position sensor positive and CKP M stand for crankshaft position negative?