Stalls, engine light.. reduced engine power light, traction control light is on,, shut the CAR OFF.. start back up after 5 min and reduced power message goes off and car is running normal but there is still an engine light. 50 miles later engine light goes out..
SOURCE: throttle/Idle/running problem - wants to run too fast, or stall out
RPM's up and down check EGR valve and sensor. EGR valve and sensor control idle. That's why your getting the surging on rpm's and this could be giving out the other codes. If mass flow was bad car will not start and the same for the map sensor. O2 sensor measures gas and air for right mixer. TPS controls 0-60 speed as in throttle respons.
SOURCE: my car shuts off, reduced engine light power
please have the car scanned for trouble codes. Many parts stores provide free scans.
SOURCE: 2001 pontiac grandprix shuts off after getting to
Sounds like the same old intake manifold gasket leak to me. (If it is equipped with a 3.1L engine) Check your engine oil to see if it looks like a chocolate milkshake. For the 3.1L or the 3.8L engine, make sure the coolant level is full. Check the level in the RADIATOR, not just the coolant recovery reservoir. (take the radiator cap off only when the engine is cold)
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Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
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Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
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Forced idle mode--The control module will perform the following actions:
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Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
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Ignore accelerator pedal input.
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Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.
Refer to
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Powertrain Control Module Description for the 4.8L, 5.3L and 6.0L engine
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Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
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Throttle default mode--The ECM will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
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Forced idle mode--The ECM will perform the following actions:
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Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned off.
-
Ignore the accelerator pedal input.
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Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.
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