1986 Nissan 300ZX "engine idle" Questions

...engine bay and it sounds like it is missing out the tail pipe. Any ideas? block off vacuum hose to brake booster and see if idle returns to normal if it does you need new brake booster has hole in ...

...engine.  If there is an air leak that does not belong there it will raise the idle just like your foot pressing down on the accelerator.The car is hard to start because the air/fuel mix is ...

...engine idle hi there i have a 1990 300zx fairladyz. its non-turbo. the timing belt snapped recently which me and my dad managed to replace.the car started ok but was running ruff. so we knew that we ...

...is not stuck open or not working at all. THe chole has an accelerated idle cam which increases the idle speed when the engine is cold and the choke is supposed to be closed and as it starts to

...engine is under load at idle when you crank the wheel hard and it bumps the idle up a bit so you don't stall the engine, but that's all it does. If you like, I can send you two wiring diagrams ...

...oil pressure guage to check. Should read about 20 psi at idle and 40-60psi above idle. Causes are nemerous from low oil level to worn out engine. You dont mention mileage. Normally very good

...idle comes down the car just dies. I am totally frustrated. 2 engines have done this now (first engine does before it got driven with new parts due to oil pump dieing). So after 2 engines with the ...

...engine warmed up idleing at 2500 rpm auto trans ac off in park allready adjusted the idle air validation screw completly closed still ran at 2000 rpm checked for vacume leaks sprayed intake area with ...

...the idle fluctuated from 1500 to 1000 rpms get a can of starter fluil crank car and spray around intake ...may have a vaccume leak ..if so this will tell you...the engine will speed up if

have a Nissan 300zx twin turbo 1990.... The engine and car are in very good condition ... well serviced... The idle speed will not go below 2000 rpm can you help as there is no manual adjustment...???