24A100
Moderate24A100 — Insufficient Turbocharger Boost Pressure
Description
What the Code Means
Code 24A100 indicates insufficient boost pressure. The turbocharger system isn't building the required positive pressure, which reduces engine power. In most cases the problem traces to air leaks in the intake tract, a faulty turbocharger actuator, or a faulty pressure sensor. In this particular case, the cause was a loosely connected small turbocharger actuator connector after EGR cooler replacement.
Symptoms
Symptoms
- Loss of engine power
- Limp mode
- Drivetrain error on the instrument cluster
- Slower acceleration
Causes and fixes
Diagnosis and Repair
Step 1
Check and seat the turbocharger actuator connector. A simple reconnection often fixes the problem.
Step 2
Clear the fault codes with diagnostic equipment (ISTA or Carly).
Step 3
Check the intake tract for leaks with a smoke generator.
Step 4
Replace the turbocharger actuator if needed (OEM 11657800621).
Possible secondary damage
Secondary Problems
Ignoring the fault can lead to:
- Turbo coking from prolonged operation at low boost
- Catalytic converter damage from a rich mixture
- Added load on the DPF (diesel particulate filter)