OBD Guide

P1111

Intake Valve Timing Control Solenoid Valve Circuit Bank 1

P1111 is an OBD-II diagnostic trouble code meaning: Intake Valve Timing Control Solenoid Valve Circuit Bank 1. Common causes: vvt solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.

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

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • The engine goes into emergency mode

Causes

  • VVT solenoid valve malfunction
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • Engine control unit malfunction
  • VVT System Mechanical Problems

How to Fix

  1. Check the condition of the VVT solenoid valve
  2. Check the integrity of the control circuit and connectors
  3. Check power and ground circuit
  4. If necessary, replace the solenoid valve
  5. Reset the error and check the system operation

Related codes

Error P1111 by Vehicle Brand

FAQ

What does the P1111 code mean?

P1111 is an OBD-II diagnostic trouble code that indicates: Intake Valve Timing Control Solenoid Valve Circuit Bank 1

What causes a P1111 error code?

The most common causes of P1111 include: VVT solenoid valve malfunction; Open or short circuit in control circuit; Poor contact in connectors; Engine control unit malfunction.

How do I fix a P1111 diagnostic trouble code?

To fix P1111: Check the condition of the VVT solenoid valve. Check the integrity of the control circuit and connectors. Check power and ground circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1111?

Yes, but get it checked soon

How much does it cost to fix P1111?

The estimated repair cost for P1111 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat