MAF Ground

[Tom Mak]

Hey guys, I recently soaked my MAF plug with contact cleaner because i am
suspecting a bad ground on there.  I have a 94 G20 btw.  Well it SEEMS to
take care of the problem for a little bit, but it went bad again. Now my
question is.  If I want to do this job permanently.  Do I have to reground
the plug itself, or is the problem originated from the ground plug at the
other end or something is wrong with the wire/  I want to do the wire, but
i am confused at how i should do it.