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Here is my problem. When I first start my Z, when it is cold, it runs like a champ. After it gets warm, right when the needle on the temp gauge moves, it starts to miss and run very bad. The idle will fluctuate +/- a few 100 rpms, the throttle will lerch when i reach 2000 rpm and then take off like a bat out of ****. This is real bad in stop and go traffic.
I have replaced cap and rotor, plug wires, plugs(ngk R), water temp sensor, fuel injectors, battery cables, cleaned of ALL the connectors on EVERY elctrical plug, set the throttle position sensor, timed the car, and tested the mass airflow sensor. It still does this.
My question is this what does the thermotime sensor do? Could it be the fuel pressure regulator? I did notice one thing that baffles me. The air regulator (i think thats what it is. It has an electrical plug on it with two hoses and it is kinda round on top of the intake manifold.) the electrical piece inside the tube keeps coming out. It does not unplug itself but rather the whole assembly comes out.??
Any help anyone can give me would be appreciated.
Sorry so long.
Tim 78 280z
I have replaced cap and rotor, plug wires, plugs(ngk R), water temp sensor, fuel injectors, battery cables, cleaned of ALL the connectors on EVERY elctrical plug, set the throttle position sensor, timed the car, and tested the mass airflow sensor. It still does this.
My question is this what does the thermotime sensor do? Could it be the fuel pressure regulator? I did notice one thing that baffles me. The air regulator (i think thats what it is. It has an electrical plug on it with two hoses and it is kinda round on top of the intake manifold.) the electrical piece inside the tube keeps coming out. It does not unplug itself but rather the whole assembly comes out.??
Any help anyone can give me would be appreciated.
Sorry so long.
Tim 78 280z