What Causes the Intermittent Malfunction of the Mitsubishi Accelerator Pedal?
2 Answers
Intermittent malfunction of the Mitsubishi accelerator pedal is due to engine issues. Taking the Mitsubishi Lancer EX as an example, here are the specific details: 1. Powertrain: The Lancer EX is equipped with a 1.8L/2.0L all-aluminum MIVEC-4B1 series engine imported from Japan. The 1.8L 4B10 engine delivers a maximum power of 100kW at 6000rpm and a peak torque of 175N·m at 4250rpm. The 2.0L 4B11 engine produces a maximum power of 112kW at 6000rpm and a peak torque of 197N·m at 4250rpm, paired with a 5-speed manual transmission or an imported CVT transmission. 2. Safety Features: The Lancer EX adopts Mitsubishi's exclusive four-dimensional safety system, which includes active safety, passive safety, visibility safety, and pedestrian protection. It is the only model in its class equipped with a 7-airbag safety system, knee airbags, and dual HID xenon headlights, achieving safety performance standards comparable to B-segment vehicles.
I've been driving a Mitsubishi for ten years, and sometimes the accelerator pedal works, sometimes it doesn't. I've tried troubleshooting it myself a few times. The most common issue is a faulty throttle position sensor, which tends to accumulate dust or become loose, causing intermittent signals. The mechanical structure of the pedal itself may also wear out or get stuck, especially when you feel it's heavier or lighter when pressing down. Loose wiring connections are another key factor, with corroded plugs or damaged wires, particularly noticeable on rainy days or bumpy roads. The ECU (Engine Control Unit) might also malfunction due to software bugs or hardware failures. The worst-case scenario involves interaction issues with the brake system, such as a faulty brake switch mistakenly triggering safety mode and interfering with throttle response. I recommend not delaying—first, try simply cleaning the sensor plug. If that doesn't work, head to a professional shop for diagnosis immediately to avoid sudden stalling and potential accidents on the road. I once procrastinated, and when the accelerator completely failed, I nearly rear-ended another car. That lesson taught me to regularly inspect these components, especially for older Mitsubishi models prone to such issues. Cleaning the engine bay quarterly can prevent many problems.
