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.
I was told to put new spark plugs of the proper variety and did then when I started it, the car seemed to run smoother except for white smoke coming out especially white out of the left tailpipe and brownish white from the right all removed spark plugs were black covered from fouling as was the o2 sensor I removed not sure where to go next I did check all the injectors and they ohm out and cleaned all of the connectors on the coil packs and injectors, still getting code 34 would that cause all of these or could there be some damage done I should be looking for? Thanks for the help.
Follow Ups
no power white smoke good injectors - buriedlemons01:04:34 03/26/10