Faulty throttle body assembly or carbon buildup on the throttle plate; Malfunctioning accelerator pedal position sensor or wiring; Outdated engine control module software requiring a reflash; Vacuum leaks or unmetered air entering the intake system; Faulty mass air flow (MAF) sensor or manifold absolute pressure (MAP) sensor; Wiring harness damage or poor electrical connections at the throttle body or pedal sensor; Internal ECM fault, though this is less common

DTC codes / Volkswagen codes / P1335

P1335 · VolkswagenEngine Torque Monitoring 2 Control Limit Exceeded

Q: What does code P1335 mean?

Engine Torque Monitoring 2 Control Limit Exceeded. P1335 on Volkswagen vehicles indicates that the engine control module (ECM) has detected a calculated engine torque that exceeds the second-level monitoring limit, meaning the actual torque delivery is higher than the ECM's expected value for the current operating conditions. This is a safety and emissions-related fault that often points to an issue with the throttle body, accelerator pedal position sensor, or the torque monitoring software itself.

P1335 on Volkswagen vehicles indicates that the engine control module (ECM) has detected a calculated engine torque that exceeds the second-level monitoring limit, meaning the actual torque delivery is higher than the ECM's expected value for the current operating conditions. This is a safety and emissions-related fault that often points to an issue with the throttle body, accelerator pedal position sensor, or the torque monitoring software itself.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Reduced engine power or limp mode activation
Poor throttle response or hesitation during acceleration
Unexpected engine surging or high idle
Transmission shifting harshly or holding gears longer than normal
In rare cases, the engine may stall or refuse to start

Common causes, most likely first

Faulty throttle body assembly or carbon buildup on the throttle plate
Malfunctioning accelerator pedal position sensor or wiring
Outdated engine control module software requiring a reflash
Vacuum leaks or unmetered air entering the intake system
Faulty mass air flow (MAF) sensor or manifold absolute pressure (MAP) sensor
Wiring harness damage or poor electrical connections at the throttle body or pedal sensor
Internal ECM fault, though this is less common

How to diagnose and fix it

Perform a visual inspection of the engine bay for vacuum leaks, damaged wiring, and loose connectors
Use a scan tool to check for other stored codes and freeze-frame data to understand the conditions when P1335 set
Clean the throttle body and perform a throttle adaptation reset using a diagnostic tool
Check the accelerator pedal position sensor readings for smooth progression through the full range
Verify MAF and MAP sensor operation by comparing live data to expected values
Check for technical service bulletins (TSBs) and update the ECM software if applicable
If all else fails, perform a guided diagnostic for the torque monitoring system using factory repair information

Torque monitoring faults often misdiagnosed

A dirty throttle body is a very common cause of P1335 on Volkswagen vehicles, and cleaning it often resolves the issue without replacing any parts.
The code can be set by a software glitch in the ECM, so checking for and applying the latest software update is a smart early step.
Many technicians replace the throttle body unnecessarily when the real problem is a worn accelerator pedal sensor or a chafed wire in the harness.
P1335 is often accompanied by other codes like P1545 or P2138, which can provide additional clues to the root cause.
Even if the vehicle drives normally, ignoring P1335 can lead to more serious drivability issues and potential safety hazards due to unexpected torque delivery.

Can I keep driving with P1335?

It is generally safe to drive with P1335 if the vehicle is running normally, but avoid aggressive acceleration and high-speed driving until the fault is diagnosed. If the engine enters limp mode or runs poorly, seek professional repair immediately.

Tools that help

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Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.