bad maf?

[boostedka_s13]

so i finally got my 240 running but now it is running like s***. it wont rev past 3k. and it idles real rough. could it be the maf? i posted on a different 240 forum and they said it was the MAF but i just wanna check again with you guys. anyone know what it could be or if it really is the MAF? thanks dudes.

[Drifterxxl]

When your vehicle won't rev past 3k the PCM is in limp mode. The pcm has reverted to a basic fuel map because a sensor that it relies on to determine fuel has failed. Yes a bad maf can cause that condition. Simple way to find out get one of your buddy's with the same engine swap mafs