alright i finally got my Z back up and running but iv got a new issue that just came up first of all let me start off by telling you what new parts have been replaced to get it running again new distzy, cap, rotor, ignition control module, coil, plugs, wires, map sensor, fuel pump,fuel filter, injectors, all three temp sensors, timing is dead on and iv got great compression the car fires up just fine runs strong till it warms up than around 2400 rmps it starts bucking and surging the idle stars bouncing up and down dramatically and the ses loight will flash when the rpms start to fluctuate than the car will stall out and die and wont restart till about 10 minutes later no matter what almost like its getting no fuel the only code im getting is 33 which i know is MAP sensor circuit error signal high indicating low vacuum iv searched for several hours and can not find a answer to why or what is my issue iv looked for vacuum leaks found none i unplugged the vacuum hose to the map sensor while running and it died so im thinking its got vacuum does anyone know what might be going on maybe the tps or iac

 

Is the ecm and harness all stock? What is the fuel pressure when this happens? Maybe it is running out of fuel.

Do you have access to a scanner tool, either professional or homemade? The info we get from a scanner can be invaluable.

Hope this helps.

 

well iv tried a few things over the weekend and after being frustrated because after almost 2 months im so close to having it on the road it finally came to me iv had several vehicles in my garage doing the same thing because of the ignition control modular except for the code so i pulled it off despite it being new also know defective parts do also come brand new when tested it showed bad so today i swapped it out under warranty and well after sitting at idle for a hour than driving for another 45 minutes than letting set for another 20 minutes all with no shut down time in between so far everything is good