![]() ![]() Symptoms of this code include an illuminated Check Engine Light, vehicle that does not start, no acceleration, and automatic transmission that does not shift. The most common cause of this code is a programming error, but it can also be caused by a bad manifold absolute pressure sensor, engine vacuum leak, or throttle bore that has caked carbon deposits. Code p2176 app sensor1&app sensor2 signal voltage fault. In conclusion, the P2176 code is a diagnostic trouble code that refers to a problem with the throttle body actuator/motor and has failed to learn the correct position at which the butterfly valve within the throttle body should be in order to produce a smooth idle for the engine. P0123 - Throttle Position Sensor/Switch A Circuit High Input Conclusion this video is showing you how to fix the p2176 code for the Chevy HHR 2006 l2 the 2.2 l engine there will also be a part 2 video to show you what the results. P2173 - Throttle Actuator Control System - Vacuum Leak Detected Ecotch 4 cylnder, Engine code engine poor reduced performance code P2176. P2177 - Throttle Actuator Control System - Idle Position Not Learned (Bank 2) What are the - Answered by a verified Chevy Mechanic 2006 Cobalt LS upper. Replacing or cleaning throttle control motorĪ P2176 is related to and may be accompanied by the following codes:.The following are solutions that may fix this problem: If the code is not diagnosed and repaired quickly, it can lead to engine damage or even a complete engine failure. Replacing just the throttle body motor when other codes are also present that point to a different underlying cause.Ī P2176 code is a serious code that should be addressed as soon as possible.Failing to inspect and clean the throttle body bore of caked carbon deposits when this is the cause of the code being triggered.Not checking the ECM programming for updates.Not thoroughly inspecting all the wiring and connectors for damage.The following are some of the most common mistakes that a technician may make when diagnosing a P2176 code: If all else fails, replace the throttle body motor.Compare IAC motor pintle position readings from know good vehicle of same make/model with those from your vehicle's IAC motor pintle position sensor.Compare results to known good vehicle of the same make/model. Test voltage and ground circuits at the throttle position sensor using a multimeter.Inspect the throttle bore for caked carbon deposits and clean as necessary.Test vacuum hoses and connections for leaks.Test the MAP sensor signal with a multimeter while the engine is cranking and compare it to a known good vehicle of the same make/model.Check the ECM programming to see if it has been updated.Visually inspect the throttle body, intake and exhaust systems for leaks or restrictions.Scan for codes in the ECM and look at the freeze frame data for failure.To diagnose a P2176 DTC code, a technician would: Bad throttle position sensor or wiring and connectors.Bad throttle body motor or wiring and connectors.Throttle bore has caked carbon deposits.This part is in charge of different body functions, such as the keyless entry, mirror features, washers, and wipers. Bad manifold absolute pressure (MAP) sensor Your vehicle has a body control module (BCM) that receives information from different switches and sensors scattered throughout your vehicle.
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