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My mercedes a170 2005 just lost power it idles but when you push the accelerator nothing happens. it doesnt respond. i have replaced the throttle valve sensor but still nothing. PLEASE HELP!!

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The last mercedes i helped for this was a different model. but it may help to tell you i had to make a bushing for where the throttle linkage pivots. when a helper depresses the throttle, look to see where you are losing it. some are cable operated. you want the air cleaner removed for access. then operate the throttle by hand. then have a helper depress the pedal. watch the operation. is something disconnected?

Posted on Nov 20, 2013

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Posted on Jan 02, 2017

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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

I have a 2001 passat , 1.8 turbo (petrol) , automatic. recently the car lost power while driving. the car continued to idle but when i press the accelerator nothing happened. it just kept on idling. l


2001, is most likely drive by cable. check the plastic clips at the throttle body and the gas pedal. They break. If it was drive by wire. it would have thrown a code. You can't buy the clips. replace the cable

Dec 07, 2014 | Cars & Trucks

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

2 Answers

My 2000 GMC/jimmy suv starts up but doesn't respond or rev up whenI push the accelerator pedal


Look for where the throttle cable connects at the throttle body. If you can move the throttle plate here and get the engine to respond, then the cable is either broken or disconnected at one end or the other. Any other situation doesn't seem likely.

Aug 22, 2014 | 2000 GMC Jimmy

1 Answer

Jetta 2005, gas pedal not responding,,sometimes it does, and sometimes it doesnt. Usually happens when the car is warm.


This is a "Drive by wire" car on the throttle. There is no accelerator cable, it has an electrical sensor that tells the engine computer when you accelerate.

Sounds like the sensor is going bad. Take it to a shop and get it replaced.

Oct 08, 2009 | Volkswagen New Jetta Cars & Trucks

1 Answer

95 f250 7.3 is throttle position sensor on the pedal


i have a f350 ps and it starts and idles but i have no throttle nothing happens when i push the pedal and the check engine light comes on

Feb 27, 2009 | 1995 Ford F250

1 Answer

Mercedes C200 just idling accelerator does not work


Try this. Turn the ignition to position 2 and leave it about two minutes(you should hear components moving/making noise under the hood). This should relearn the throttle stop(sounds like your vehicle lost synchronization). After that period of time, start the car and see if it helps. If not, then it will probably have to go to the dealer so they can use the computer to try and relearn it.

Nov 03, 2008 | 1997 Mercedes-Benz C-Class

1 Answer

94 Nissan Altima accelerator problems


check your throttle position sensor

Aug 06, 2008 | 1994 Nissan Altima

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