Intermittent miscommunication between acc. pedal and throttle body 2007 Mazda CX-7

The car seems to struggle to accelerate and low speeds, there seems to be no communication between acc pedal and throttle body: when this happens it doesn't rev past 3000rpm no matter how hard you press the acc pedal. This problem is Intermittent because when you turn the engine on it run normal for a while before it does that thing.

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My car has 130000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there, from your symptom description, it sounds like your throttle position sensor is failing. Check for problem codes, whether the Check Engine or electronic throttle warning lights are on. I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The effects of a bad throttle position sensor are quite varied. Usually, it goes out intermittently with a weakened signal. Although, It can also cause surges at times and create unsafe conditions.
The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.
To recalibrate the ECM and accelerator pedal, the ignition switch must be in the ON position and then the accelerator pedal must be slowly and fully depressed from idle to full throttle. Repeat the procedure three times.
A malfunctioning TPS will cause your engine to run poorly. Generally the engine will idle fine but will have difficulty accelerating.
Cleaning fuel injectors is generally not a do-it-yourself project, but you can clean the throttle body on your vehicle with common tools and specialized spray cleaners. While throttle-body cleaning is good preventative car maintenance, it should also help engine drivability.
Within a motorsport engine – or the engine of any vehicle, there is a throttle valve. The throttle valve opens when the accelerator pedal is compressed. A throttle position sensor is used to measure how open the throttle valve is and therefore controls the amount of air which can flow into the engines intake manifold.
Among the two most important parts within the throttle body are the throttle body position sensor (TPS) and the throttle body temperature sensor. While they sound similar, they are indeed two individual parts that work together to efficiently mix fuel and air.
Accelerator Pedal Release Position Learning Procedure.

Make sure that the accelerator pedal is fully released. Turn ignition switch “ON” and wait at least 2 seconds. Turn ignition switch “OFF” wait at least 10 seconds. Turn ignition switch “ON” and wait at least 2 seconds.

The accelerator pedal sensor (APS) indicates the position of the accelerator on vehicle models with electronic throttle control. The APS is basically a throttle position sensor (TPS) with a pedal attached.
To calibrate the unit, turn the vehicle`s ignition to ON but do not start the vehicle, hold down the ← → button for 5 seconds, the throttle controller screen will show a 15 second countdown. 5. During the countdown period press the accelerator pedal completely to the floor and hold for 1-2 seconds, then release.
A throttle response controller can be adjusted from a simple and easy-to-use button on the dash or smartphone app. This puts you in direct control of the amount of throttle response.
Accelerometer sensors have the ability to alter obtained physical acceleration from motion or gravity into a voltage output. Accelerometers are widely used to measure inert acceleration due to gravity, the low-frequency module of the acceleration and the dynamic acceleration due to animal movement [36].
The accelerator pedal sensor transmits the position of the accelerator pedal to the engine control unit. Based on this information, the load requested by the driver can be implemented immediately.
The TPS sensor is a potentiometer, providing a variable resistance depending on the position of the throttle valve (and hence throttle position sensor). The sensor signal is used by the engine control unit (ECU) as an input to its control system.
the average lifespan of a throttle position sensor is just over 80,000 miles, though some will last for the lifetime of the car. if a tps is suspect, a professional repair facility will perform electrical testing on the sensor.
A: The throttle position sensor is designed to last the lifetime of your vehicle, but things don`t always go according to plan. Any number of things can cause problems with the TPS, from electrical system issues to physical damage, none of which can be predicted ahead of time.
If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don`t want to wait to get this checked out! If the idling appears off, it means the computer is unable to identify the fully shut throttle.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Intermittent miscommunication between acc. pedal and throttle body 2007 Mazda CX-7
ANSWER : Hi there, from your symptom description, it sounds like your throttle position sensor is failing. Check for problem codes, whether the Check Engine or electronic throttle warning lights are on. I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Spraying throttle body cleaner into throttle body while engine is running
ANSWER : The engine running rough for a moment after using throttle body cleaner is a normal symptom. This should only last for a short period of time and then go away. If the issue does not go away after a few start ups or a short drive, it is possible that the throttle position sensor or mass air flow sensor could have been damaged as a result of using the throttle body cleaner. Many throttle body cleaners will specify if they are sensor safe. IF the throttle body cleaner is not sensor safe, one of the sensors may be fouled out. I would recommend having a drivability inspection performed on your vehicle to determine the exact cause if this issue persists. Consider YourMechanic, as a certified technician can come to your home or office to determine the cause of this issue.

I am upgrading my 2007 GT’s throttle body to a BBK 62mm throttle body.
ANSWER : Hello. The meter setting will depend on what BBK requires you to set the throttle body at. If the setting is voltage related then you need to set your meter to DC volts. That is usually what they recommend. If it is a resistance reading that they need you will set it to Ohm’s. If this is something that you would prefer to have done, consider YourMechanic, as a certified mechanic can come to your home to adjust this and insure a proper replacement of your throttle body.

Is it bad when oil gets into the throttle body?
ANSWER : Hello,
I believe what you are describing is a problem with your PCV valve. A bit of oil in the throttle body is not going to harm your motor and is certainly not going to cause it to blow up. At an idle, the PCV valve restricts air flow, to reduce this problem. At high manifold vacuum (idle), a spring loaded valve is drawn up and partially restricts flow to the crankcase. The PCV system is relatively simple. An inlet hose connects to a filtered air source. This is used to supply clean air that is drawn through the engine. Most of the time this air is supplied through the engine air filter. On a few designs there is a separate inlet filter that cleans the incoming air for the PCV system only. This filtered air flows through the engine, picking up fumes and vapors. The air exits through another hose, connected to manifold vacuum. The flow of air draws fumes from the crankcase and burns them harmlessly in the engine. This also creates a slight vacuum, relieving any pressure that may build. Negative pressure helps to prevent oil leaks and oil consumption by the engine. The PCV valve also helps regulate the amount of air flow, which helps prevent oil being drawn out of the engine. When the PCV valve is not working correctly, this will cause an imbalance in air flow and vacuum causing the check engine light to come on. i would suggest having a professional from YourMechanic come to your location to take a look at your Jeep.

I have a bad throttle body, so instead of paying the dealership ridiculous prices, I order a throttle body myself.
ANSWER : After you replace the throttle body then all you have to do is turn ignition on with all accessories off. After 29 seconds of not touching anything the engine computer will relearn the new throttle body. Leave it on for at least 2 minutes before turning off. Start the vehicle and see if vehicle idles good and throttle works before driving. If no Check Engine Light comes on then you are good to go.

If you run into any problems or decide to get some help with the job, consider YourMechanic, as a certified technician can help ensure the correct installment of your new throttle body.

Supportive bar attached to brake pedal interrupts proper braking process
ANSWER : It’s possible to have someone alter the brake pedal or adapt a brake pedal from a different vehicle. You may call around to some customization shops to see if anyone is interested in taking on the project. But first, I would try reaching out to the selling dealer with your concern – especially since it is a new model. Good luck.

I changed the throttle body on 2006 Chevy impala and it says service throttle body after resetting it.
ANSWER : Hi there. Check the resistance on the throttle position sensor on the throttle body and the throttle pedal position sensor on the gas pedal. There should be a resistance on the sensors. If one or both sensors have no resistance or have a really high resistance, then I recommend replacing that or both sensors. If you need further assistance with your throttle body service message, then seek out a professional, such as one from Your Mechanic, to help you.

I changed the throttle body on my Murano and ever since gas pedal is unresponsive? I did all 3 relearn procedures. What is wrong? 2004 Nissan Murano
ANSWER : Hello – there are a couple of possibilities for the "failure to relearn" of the new throttle position sensor". If engine management recognizes an invalid parameter during the relearn process (low system voltage, AC compressor kicking on, etc.), it cancels the learning process and goes back to defaults. It is also possible that a wiring connection to the new TPS does not have a good connection. If checking for these issues, and going through the relearn again does not resolve this issue, I recommend a throttle control service performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, complete this repair, and get you back on the road again.