I had this same symptoms showing from my camry when I was 16. It took me awhile to figure it out but after rooting around under the hood for awhile I noticed a crack in the rubber leading from the air filter to the intake manifold. What was happening was the crack allowed excess air to enter the engine and made the fuel mixture too oxygen rich. Check the Intake manifold and all parts relating to it and see if you don't have some rubber parts going bad.
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old car, very old
this is easy, to find, but can be many things, my tests cut this to 2 reasons. mostly. (leaks and isc failure tests)
1: ISC system is dead, (stuck idle speed contr. valve)
2: throttle cable stuck or set wrong, (must have slack)
3: vacuum leaks, on all cars with map sensors, vacuum leaks make the ISC loose control and RACES fast with full engine power. all MAP based EFI SYSTEMS, "speed density systems:
tell the full story, please.
you start car
and it runs.
and what do you do that causes the car to not respond.
are you driviing, what? we dont know what you are doing, or execting.
idle speed wrong (below 800)
idle surges by itself
car wont move in gears, one or all? and reverse?
The engine computer controls idle speed through the idle control valve. Sometimes the air passages this valve controls get gunked up and don't perform well, don't let enough air through. Cleaning them out may help, also give a good cleaning to the throttle body assembly. Use a throttle body cleaner, a good sensor safe cleaner, not regular carburetor cleaner.
Generally speaking, the common reasons for stalling are a faulty idle air control valve or a dirty throttle body. The computer controls idle speed by how much air is allowed into the intake thru the throttle body. Those two issues would be checked first. Is the check engine light on when the engine is running ?
It should have an idle air control valve which lets air into the intake to control the idle speed. The valve could be faulty, or dirty, or the throttle body could be dirty. The computer opens and closes the valve to regulate idle speed.