300zx tt running rich. help?

[idgafalynn]

I have a 1993 twin turbo Nissan 300zx. The wideband is reading between 10 and 12 while cruising, but at idle sometimes it will run lean at 16 or run really lean and not have a reading. My idle also flux. It will be 1000 rpms, then drop to 500 then 0 and it sounds like its going to shut off but goes back to 1000. The z also bogs out really bad if you rev above 3 grand, or if your cruising and try to speed up it bogs. It struggles to even get to 40mph. Any advice I have no idea what to do or where to start.

[BigTDogg (MA)]

Welcome to Nico.

Your MAF signal is bad. Check it with a Datascan or Consult, if you have one. OTherwise you may want to check with local Zers in your area to see if they can lend you a hand.