Take your vehicle to your local autozone if you have one, or some other autoparts store that can see what check engine light code is coming up on your truck. I am sure there is one, as you describe a problem with you idle which is computer controlled. Could be any number of reasons, ie Throttle Position Sensor(tps), vacuum leak, Egr valve problem, an a numerous other things I could continue to list. If no one in your area has a way to check your car for free, take it to a reputable shop and ask for engine diagnosis with an estimate. Usually they charge a rate for checking the problem and give an estimate, and if you let them repair the vehicle, there is no charge for the diagnosis.
I have a Mazda 2001 Tribute and I just replaced the Idle Air Control Valve (IAC). I searched for Idle Speed Control actuator and there does not appear to be one. The IAC is the silver module right on top of the manifold.
The idle speed on a 1987 Chevy Celebrity is controlled by the engine computer, there is no way provided to adjust it.
on top of the upper intake there is a screw. it can be used to adjust idle speed.
Did you check the cable that runs from the pedal to the intake? Maybe it could be broken or just simply worn out.
There is a small screw adjustment on the drivers side, closer to the bottom back part of the mikuni carb. Remove the air filter and housing to get at it better
Stock ignition timing at idle is 6 deg BTDC +/- 1 deg. I like to set mine for about 7 or 8 deg BTDC. Kyrasis6 Mazdatruckin.com
I have an 89 Mazda b2200 and all i did was mess with the timing and it started to run better,a but a friend suggested that I pull the distributor shaft and turn it a notch.
The Mazda Millennia Speed sensor tells the speedometer how fast the vehicle is traveling. Speed sensors are located on top of the transmission housing where they can reach the input shaft. The speed at which the input shaft spins tells the vehicle how fast it is moving.
700 RPM
The idle speed is read by the Engine Control Module(computer) and adjusted as necessary by use of the idle air control in conjunction with the throttle position sensor. There is no separate idle sensor as such.
under the hood there should be a white sticker with idle speed and timing on it you cannot set timing and idle on a 2.3. all that is controlled by the pcm
The idle air control valve is also known as the idle speed valve. On a 1999 1.6 literÊMazda Protege, it is located at next to the throttle body.Ê