Question about 2006 Pontiac Grand Prix

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Throttle position sensor 06 grandprix gt

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..

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I have the same problem, and fix new map sensor replace it, was broken in 3 parts

Posted on Aug 25, 2015

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  • 90 Answers

O2 sensors can cause this and often they clear up after a good run.

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

wyatt1582
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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.

Posted on Apr 28, 2009

jturcotte
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SOURCE: my car shuts off, reduced engine light power

please have the car scanned for trouble codes. Many parts stores provide free scans.

Posted on Sep 04, 2010

dttech
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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)

Posted on Dec 22, 2010

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1 Answer

Check engine light reduce engine power and traction controll off.


It could be the APP sensors or the throttle body throttle position sensors . What DTC'S - diagnostic trouble codes . Need to test the electrical wiring , 5 volt reference voltage. Drive by Wire Function and diagnostics by Wells
REDUCED ENGINE POWER - mass airflow sensor has nothing to do with this problem .
Throttle Actuator Control (TAC)
Reduced Engine Power Mode When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Acceleration limiting--The control module will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.


?€¢
Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.


?€¢
Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.


?€¢
Forced idle mode--The control module will perform the following actions:


-
Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.


-
Ignore accelerator pedal input.


?€¢
Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.




Refer to
?€¢
Powertrain Control Module Description for the 4.8L, 5.3L and 6.0L engine


May 09, 2016 | 2006 Chevrolet Avalanche

1 Answer

Why did the reduced engine power and service traction light come on. The car can be started then looses power and stalls out.


When the check engine light comes on it disables other module features as a safety issue. The reduced engine power light is normally caused by a defective throttle actuator motor assembly. In some instances, it can also be caused by a defective gas pedal sensor as well. In my experience, the throttle actuator motor is the most common repair

Jan 05, 2016 | 2007 Buick Rendezvous CXL SUV

1 Answer

When I push my gas pedal down about one inch the reduced power light comes on it don't stall just reduced power you shut the truck off restart it the light is off ,


The reduced power light is pertaining to the TAC - electronic throttle control . Is the check engine light lit ? If not still may have a DTC -diagnostic trouble code stored . You probably have a bad TPS - throttle position sensor .
Throttle Body Assembly
The throttle body for the throttle actuator control (TAC) system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the throttle position (TP) sensor. The TP sensor is mounted in the throttle body assembly. The TP sensor is 2 individual TP sensors within the throttle body assembly. Two separate signal, low reference, and 5-volt reference circuits are used to connect the TP sensors and the powertrain control module (PCM). TP sensor 2 signal voltage increases as the throttle opens. TP sensor 1 signal voltage decreases as the throttle opens.

Dec 31, 2015 | 2002 Chevrolet Chevrolet TrailBlazer EXT...

4 Answers

I have an 06 cobalt and recently my car started to suddenly lose power while driving. It says reduce engine power when this happens. If I turn the car off for a minute it'll go away.


This has nothing to do with the Catalytic converter ! Plugged catalytic converters don't go away after shutting off the vehicle !
This reduced engine power has to do with the
Throttle Actuator Control (TAC) System
Reduced Engine Power Mode When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.


?€¢
Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.


?€¢
Throttle default mode--The ECM will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.


?€¢
Forced idle mode--The ECM will perform the following actions:


-
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.


?€¢
Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.

Mar 29, 2015 | 2006 Chevrolet Cobalt

1 Answer

What causes the "Reduced Engine Power", "Service Stability Control" and "Traction Control" warning lights to come on?


the "Reduced Engine Power", problem causes the PCM to disable "Service Stability Control" and "Traction Control" turning on the warning lights to come on for those systems . The reduced engine power is because of a problem with the electronic throttle control system or as GM calls it TAC system . Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The PCM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.
• Limited throttle mode--The PCM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
• Throttle default mode--The PCM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The PCM will perform the following actions:
- Limit engine speed to idle by positioning the TP, or by controlling the fuel and spark if the throttle is turned OFF.
- Ignore the accelerator pedal input.
• Engine shutdown mode--The PCM will disable fuel and de-energize the throttle actuator.
© 2017 General Motors Corporation. All rights reserved.



Drive by Wire training Your best bet , take it to a GM dealer

Mar 04, 2017 | 2005 Pontiac Grand Prix GT

1 Answer

2011 chevy impala traction control


There are a few reasons this might happen. Believe it or not it could be as simple as a loose gas cap. That can cause a false reading in the throttle position sensor, and activate the traction control. Remove the gas cap and put it back on making sure to tighten it until it "clicks". Another reason may be a faulty throttle position sensor, or it has a glitch, thus activating thr traction control. Try the "Old Fashioned" fix of disconnecting the battery for about an hour, to reset the computer. After you reconnect it, turn the key to the ON position but don't start it. Slowly press the accellerator to the floor and release. Turn the key back off, wait a few seconds then start the car. This should take care of the glitch, if not it's most likely the throttle position sensor needs to be replaced.

Jul 08, 2014 | 2011 Chevrolet Impala

1 Answer

Reduced engine power


Have the vehicle checked for DTC'S - diagnostic trouble codes ! Do you know what electronic throttle control is ? The gas pedal assembly has electrical connector an sensors inside ,hooked to the PCM / ECM - engine computer . The engine computer uses these position sensors inputs to control the DC motor on the throttle body to open the throttle plate to control the speed . Plus there are position sensors inside the throttle body to input PCM/ECM to see if it's calculations are corect . Your best bet maybe to take it to a qualified repair shop .
Drive by Wire Function and diagnostics by Wells

Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The control module will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.
• Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
• Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The control module will perform the following actions:
- Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
- Ignore accelerator pedal input.
• Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.

May 12, 2017 | 2004 GMC Sierra Denali

2 Answers

Traction light on , reduce engine power lights on 07 ss impala what does that sound like .


I know this is not a solution but I too started having this same problem today. Start car, runs normal then all the sudden it feels funny, traction control light blinks on and dash displays service traction control-reduced engine power. This causes my car to sputter like it is going to stall I have to pull over and turn my car off and back on to drive off (only for it to do it within the next 10 minutes). I thought turning TC off would work for now just to drive it, no not successful stil does it : ( I TOOK IT TO AUTO ZONE AND HAD IT SCANNED HAD A CODE FOR GROSS EVAC LEAK AND SOMETHING ABOUT THE THROTTLE PLATE/BODY NOT SURE IF THAT IS RELATED BUT THAT ALL THE INFO I HAVE ON THAT.

Aug 29, 2010 | 2007 Chevrolet Impala LS Sedan New Cars

2 Answers

2004 grand prix no go with traction control light on.


I had the same problem with my car. I cleaned the throttle body and when i installed everything back, the car would throw 2 OBD codes: P0120 at start up and P0507 when it stalled at a red light. Took it to the dealership and they had to install a new throttle body because the throttle position sensor is internal. Cost = $718.00 out the door. Part is about $480 and labor is 1.8 hours at $99.00/hr (bunch of ****). There is only a 12 month/12,000 mile warranty for work from the dealer so I would recommend doing the work yourself if possible. There is only 2 bolts on top, 2 nuts on bottom, 1 electrical connection, and 1 hose clamp.

Feb 12, 2010 | 2004 Pontiac Grand Prix

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