OBD Guide
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P161D

Throttle Valve Adaptation Failure Spring Test Failed Bank 2

P161D is an OBD-II diagnostic trouble code meaning: Throttle Valve Adaptation Failure Spring Test Failed Bank 2. Common causes: mechanical fault of the throttle valve, throttle position sensor malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Idle problems

Causes

  • Mechanical fault of the throttle valve
  • Throttle Position Sensor Malfunction
  • Electrical wiring problems
  • Engine control unit malfunction
  • Throttle valve contamination

How to Fix

  1. Check the mechanical condition of the throttle valve
  2. Check throttle position sensor
  3. Check electrical wiring and connections
  4. Clean throttle body
  5. Perform throttle valve adaptation procedure

Related codes

P161CP161EP161F

FAQ

What does the P161D code mean?

P161D is an OBD-II diagnostic trouble code that indicates: Throttle Valve Adaptation Failure Spring Test Failed Bank 2

What causes a P161D error code?

The most common causes of P161D include: Mechanical fault of the throttle valve; Throttle Position Sensor Malfunction; Electrical wiring problems; Engine control unit malfunction.

How do I fix a P161D diagnostic trouble code?

To fix P161D: Check the mechanical condition of the throttle valve. Check throttle position sensor. Check electrical wiring and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P161D?

Yes, but get it checked soon

How much does it cost to fix P161D?

The estimated repair cost for P161D is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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