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P2119 Fault in 2007 Mazda5: Throttle Body Cleaning Caused Driving Issues and Limp Mode

Model: 2007 mazda 5 Fault Code: P2119 Posted: 2019-11-02 20:15

I recently removed and cleaned the throttle body on my 2007 Mazda5. After reassembly, I noticed a significant driving issue: when shifting into drive or reverse and pressing the accelerator, the engine only revs up to around 2000 RPM before briefly moving forward by about one foot, then stalling—only to resume normally after a minute or two. This behavior is similar to what happens if the emergency brake were stuck, but I don’t feel any vibration or resistance when accelerating. The check engine light has been flashing with code P2119 (Throttle Actuator Control System Range/Performance), and the car runs roughly—requiring me to press the gas pedal halfway before RPMs increase. When I clear the code, the engine revs normally, but the vehicle still refuses to move smoothly unless the pedal is fully depressed. I suspect this could be related to a faulty throttle position sensor (TPS), accelerator pedal position sensor, or a defective throttle actuator control motor. However, since the issue started after cleaning and disassembling the throttle body, I’m wondering if there’s a wiring fault, corroded connector, or PCM malfunction. I’ve used an OBD2 scanner and observed 'Throttle Actuator Control (TAC) Throttle Valve Range/Performance' in the diagnostics. The car drove somewhat normally with the code present, but now it fails to move properly under normal acceleration. I suspect the vehicle may be in limp mode due to a throttle system fault. Any insights or troubleshooting steps for this P2119 issue on a 2007 Mazda5? Can the problem be resolved by reseating connectors, checking wiring integrity, or replacing components?

Related fault codes
P2119
Comments (9)
Anonymous 2019-11-02 20:27

Do you have access to a scan tool or digital multimeter (DVOM)? If not, please describe exactly what steps were taken during the throttle body removal and reinstallation. Possible causes of P2119 include: faulty throttle body, dirty throttle plate or linkage, defective throttle position sensor (TPS), malfunctioning accelerator pedal position sensor, failed throttle actuator control motor, damaged wiring, corroded connectors, or a failing powertrain control module (PCM). More details here: https://www.p2119.com

Anonymous 2019-11-02 20:33

I have an OBD2 scanner and a voltmeter. During the throttle body cleaning process, I disconnected the MAF sensor, cleaned the air box using a MAF airflow cleaner, removed the TPS plug from the throttle body, detached both water hoses, disassembled the throttle body, cleaned the internal components and intake manifold, then reinstalled everything.

Anonymous 2019-11-02 20:40

The OBD2 reader shows 'Throttle Actuator Control (TAC) Throttle Valve Range/Performance' under engine parameters. The car ran reasonably well with this code present before—however, after removing the throttle body, it now only moves when I press the gas pedal to the floor. It then moves a short distance and stalls briefly. I don’t believe the emergency brake is stuck.

Anonymous 2019-11-02 21:27

Does your OBD2 scanner have access to an engine parameters data menu? If not, use a multimeter to test voltage and resistance at the throttle body connections. Refer to wiring diagrams from BBBind.com or subscribe to ALLDAT.com for detailed schematics. The vehicle may be in limp mode due to a fault in the throttle system.

Anonymous 2019-11-02 21:35

If the car is in limp mode, how do you typically clear the P2119 code or exit this restricted driving state?

Anonymous 2019-11-03 10:09

P2119 can trigger limp mode. If you erase the code and it doesn’t reset immediately, the vehicle may remain in limp mode. If the code resets successfully, further checks are needed to verify throttle body integrity and circuit continuity.

Anonymous 2019-11-03 19:08

Turns out the transmission fluid was extremely low. The previous owner claimed a flush had been done a week before I purchased the car—likely not completed properly, as there was almost no fluid present. This explains why the vehicle wouldn’t move under normal conditions.

Anonymous 2019-11-03 19:10

After re-cleaning the throttle body and topping up transmission fluid, the P2119 code has not returned. Quick question: for a 2007 Mazda5, should I use only genuine Mazda transmission fluid, or can I safely use a more affordable compatible alternative?

Anonymous 2019-11-04 10:48

For most applications, a comparable and properly specified transmission fluid should work. Always ensure the fluid is compatible with your vehicle’s specifications to avoid long-term performance issues.