P2107 — Throttle control module processor fault detected

The engine's throttle control module is reporting a problem with processing signals that control the throttle opening. This can happen if the module detects inconsistent or faulty data from the throttle body or related sensors.

Common causes

The cause is almost always one of a few things. Here they are — P2107 rarely comes from anything outside this list:

• Faulty throttle position sensor
• Wiring issues or poor electrical connections
• Defective throttle body assembly
• Software or module malfunction
• Dirty or sticking throttle plate

Where to start

In the order a sensible mechanic would work — the cheap checks first, the expensive replacements only after:

1. Check and clean throttle body and sensor
2. Inspect wiring and connectors for damage or corrosion
3. Reset or update engine control module software
4. Replace faulty throttle position sensor
5. Replace throttle body assembly if needed

That is what holds for P2107 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.