Car shut down while driving

1998 FORD CONTOUR
160,000 MILES • 2.0L • 4 CYL • FWD • AUTOMATIC
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HUSSEIN SAMI GHUNAIM
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My car drives smoothly and flawless, except for sometimes, usually everyday once or twice, when applying brakes or let it drive without pressing the power pedal. When doing so, sometimes it shuts down and the dashboard lights come on. Then I need to put it on (P) and turn the key off then wait a few seconds before starting it again. Then it starts normally and might shut down again or not.
If the car powered off and I started it immediately without waiting a few second then the "check engine" light comes on the dashboard. Then I need to get the car off and wait for twenty to thirty seconds before starting the car to make the "check engine" light disappear.

I have checked the both fuse box inside the car and under the hood. Everything is okay and the fuses are all okay and all of them are according to the diagram.
I have checked the MAF and it works great. I have also checked the connectors and wires of the following sensors (crankshaft, camshaft and MAF).
The only thing I have not done is checking IAC sensor and cleaning it.

The scanner tool does not give any error codes.

Any suggestions?
Mar 17, 2017 at 12:55 PM
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STRAILER
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Hello,

When the engine shuts down does the car shutter kind of like when you are not putting the clutch is on a stick shift car?

Best, Ken
Mar 22, 2017 at 2:34 PM
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HUSSEIN SAMI GHUNAIM
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It just shuts down... no hesitation or shaking or any other symptoms... just turn off immediately.
Mar 24, 2017 at 6:25 AM
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HUSSEIN SAMI GHUNAIM
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Update:
three days ago, I've cleaned the throttle body with carb cleaner and applied half a bottle on it while pressing the gas pedal...
Now the RPM feels higher (although I have no RPM gauge), and the car doesn't shut down anymore!!!

What the problem could be, and is it solved by that? Should I clean it once more?
What are the suggestions?
Mar 24, 2017 at 6:33 AM
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STRAILER
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Yes that could cause it. Make sure the throttle body is completely clean for the best results, here is a guide that will help you.

https://www.2carpros.com/articles/throttle-actuator-service

Please let us know what happens.

Best, Ken
Mar 24, 2017 at 10:52 AM