So I purchased a 1990 300zx NA a few weeks ago for cheap from a neighbor and now I have been trying to get it running well enough. Initially I replaced the battery and had to replace the MAFS, which was removed for instillation into someones 240sx. After that I was able to start the car and can hear what sounds like a massive vacuum leak from somewhere on the drivers side of the engine bay. Also there seems to be no power steering it takes alot of effort to turn I made it once around the block and back with the car bucking and losing power over about 2500rpm. I learned how to check my codes and did so with the ecu throwing 12 34 53 after I cleared the codes it only threw 34 53. So I replaced the o2 sensor hoping that would clear up both but no go. I cleared the codes and restarted the car drove around the block and once again all three codes appeared anyway I am just looking for some advice as to which direction to look from here to get the car running well enough.
Follow Ups
no power hesitation and other problems. - buriedlemons16:06:04 03/16/10
16:06:04 03/16/10
