How do you adjust the idle on a 1986 Toyota pickup?
On the side of the intake manifold, near where the rubber intake hose connects to the throttle body, there is a screw. It is about a half inch in diameter, regular blade. On the 4 cylinder it will be pointed up, on the v6 it will be pointed toward the front of the car. Turn it in to slow down and out to speed up. On another note the entire system works together and if you have a dirty air cleaner or fuel filter they can contribute to an idle problem. Check these before you make any adjustments.
You can't. Toyota Camry uses throttle position sensor to adjust idle. If your car does not idle you need to check computer for error codes. If you do not have any, most likely you will have to do tune up on your engine and maybe even fuel system. But starters check the air filter and replace if you did not do that in a while or if it looks dirty.
If your Nissan is '97 or newer, there is a computer mounted below the passenger seat that controls idle speed. Remove the 4 bolts holding the passenger seat, take it out, and use a flat screwdriver to adjust idle speed. make sure the engine is off and adjust only a little at a time until the desired rpm is attained. Be warned, it might affect emmissions test.
Sorry for my English I will do my best to explain this. The carbs of this Honda Magna have a knob in the middle of the carbs. It is for idle adjust, but is the problem is bigger you have to clean the carbs, check the jets and diaphragms is better if you can use an air compressor or maybe a vacuum sincronizer.