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Engine will idle but will not accelerate - Nissan Cars & Trucks

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Sounds like fuel filter or pump

Posted on Nov 28, 2013

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Posted on Jan 02, 2017

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Throdlebody and gas peddle out of sink won,t go faster than 30


If you would like help we would need the DTC - diagnostic trouble code .Is their a Reduced Engine Power Mode message showing on the instrument cluster ?
Reduced Engine Power Mode
When the PCM detects a problem with the throttle actuator control (TAC) system the PCM enters one of the following Reduced Engine Power Modes:
• 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.
• 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.
IF you do not know this your best bet would be to take to a qualified repair shop .
DTC P0506
DTC P0507
The throttle actuator control (TAC) motor is controlled by the powertrain control module (PCM). The DC motor located in the throttle body drives the throttle plate. In order to decrease idle speed, the PCM commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the PCM commands the throttle plate open allowing more air to pass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, this DTC sets.

Jan 05, 2017 | Cars & Trucks

2 Answers

Starts and idles, no accelerator response.


Your Denali has Throttle Actuator Control (TAC) System - Electronic throttle control ! Are there any messages on the driver information center ? Reduced engine power ?
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.


You need to have it checked for DTC'S - diagnostic trouble codes , probably a accelerator pedal position (APP) sensor or TPS - throttle position sensor !

Jun 01, 2015 | 2003 GMC Yukon Denali

1 Answer

My Pajero GDI engine v6 petrol has idling and acceleration problem.


it is a possibility the potension meter does not working. It is on the accelerator pedal,by using a scanner surely you will get the correct fault.

Mar 06, 2013 | Cars & Trucks

1 Answer

Car starts but won't idle until I accelerate


has base idle speed and kurb idle speed. allows engine to close throttle opening when shutting down to stop pre-ignition or engine running on

Nov 14, 2012 | 1988 Chevrolet Camaro

1 Answer

Engine idles but does not accelerate when pressing on the gas pedal?


what car is it? your car using carb or fuel injection

Jul 27, 2012 | 1995 Nissan Altima

2 Answers

Engine accelerates when brake is applied


Its a vacuum issue.The vacuum hose or line is cracked and there is a vacuum leak.Click the link below and see the troubleshooting for this problem:----http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html
---------This will help.Thanks.

Feb 10, 2012 | 1987 Ford Ranger

1 Answer

Is the idle air valve an acceleration problem? It started accelerating it self now that its getting colder. Is it like the choke in older models?


No to both questions. The idle valve is only for idle control, letting in more or less air as idle conditions warrant, to keep engine at proper idle RPM. The old choke would reduce air supply on a cold engine to allow starting with a richer gas mixture. That function is taken over by the computer in injected cars by allowing longer injector pulses to give richer mixtures in cold engines. Once warm, the 02 sensor controls fuel trim through the computer.
By "accelerating itself", do you mean your idle is higher now that it's colder outside? I suppose it's possible if the idle valve is out of calibration, it might cause that. It is computer controlled, so proper diagnosis of the idle control valve requires a multimeter. The throttle position sensor should also be looked at for a high idle. Good luck.

Nov 05, 2011 | 1989 Oldsmobile Cutlass Ciera

1 Answer

Engine starting problem.


run the fault codes
indicates an idle control sensor or other throttle / accelerator sensors

Nov 11, 2017 | 2005 Hyundai Tucson

3 Answers

Would an idle control valve cause a car not to accelerate?


no, idle air control valve is literally to control your idle speed.
what happen when you press on gas? car shakes, RPM goes up, or engine just bogs down?

Mar 09, 2010 | 2004 Infiniti I35

2 Answers

Engine misses when accelerating DOWN THE RD


the idle controls could be the problem

May 02, 2009 | 2001 Ford Expedition

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