OBD Guide

P050D

Cold Start Rough Idle

P050D is an OBD-II diagnostic trouble code meaning: Cold Start Rough Idle. Common causes: throttle valve contamination, coolant temperature sensor malfunction. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Rough idle on cold start
  • Engine stalls on cold start
  • Floating speed

Causes

  • Throttle valve contamination
  • Coolant temperature sensor malfunction
  • Problems with fuel injectors
  • Idle air control malfunction
  • Intake system contamination

How to Fix

  1. Check and clean the throttle valve
  2. Check coolant temperature sensor
  3. Check fuel injectors
  4. Check idle air control
  5. Carry out diagnostics of the engine management system

Related codes

Error P050D by Vehicle Brand

FAQ

What does the P050D code mean?

P050D is an OBD-II diagnostic trouble code that indicates: Cold Start Rough Idle

What causes a P050D error code?

The most common causes of P050D include: Throttle valve contamination; Coolant temperature sensor malfunction; Problems with fuel injectors; Idle air control malfunction.

How do I fix a P050D diagnostic trouble code?

To fix P050D: Check and clean the throttle valve. Check coolant temperature sensor. Check fuel injectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P050D?

Limited driving only, diagnose soon

How much does it cost to fix P050D?

The estimated repair cost for P050D is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat