confirm which maf for j4 ecu?

[rustrocket]

I'm trying to diagnose my bad idle, and everything I've found points to the maf.

I'm not sure if my maf is just out of whack, or if it's the wrong one. I have a j4 ecu, and the maf is a 52f00.

Can somebody confirm for me if the j4 requires a 52f01 like I was told, or if not, what it does need?.

[SpoolingZenki]

Hey I know this is a old post but did you ever find out the issue ? I have a j4 as well. I've replaced all Sparkplugs, fuel pressure regulator, did timing, cts, and everything and still can't boost past 4krpm. I believe I was told I need a 52f01, just bought it and awaiting the maf plug. Did you fix tour issue ? If so did this do it?


I'm completely stock black top sr20 with j4 ecu. My wiring specialties harness is correct.