OBD Guide

P1D66

Cylinder 2 Oil Supply Solenoid Valve Performance

P1D66 is an OBD-II diagnostic trouble code meaning: Cylinder 2 Oil Supply Solenoid Valve Performance. Common causes: solenoid valve jammed, open or short circuit in valve circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased engine noise
  • Unstable engine idling

Causes

  • Solenoid valve jammed
  • Open or short circuit in valve circuit
  • Valve connector problems
  • Engine control unit malfunction
  • Oil passages are dirty

How to Fix

  1. Check the condition of the solenoid valve
  2. Check the integrity of the circuit and connectors
  3. Clean or replace valve if necessary
  4. Check the operation of the engine control unit
  5. Change oil and oil filter

Related codes

FAQ

What does the P1D66 code mean?

P1D66 is an OBD-II diagnostic trouble code that indicates: Cylinder 2 Oil Supply Solenoid Valve Performance

What causes a P1D66 error code?

The most common causes of P1D66 include: Solenoid valve jammed; Open or short circuit in valve circuit; Valve connector problems; Engine control unit malfunction.

How do I fix a P1D66 diagnostic trouble code?

To fix P1D66: Check the condition of the solenoid valve. Check the integrity of the circuit and connectors. Clean or replace valve if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D66?

Limited driving only, diagnose soon

How much does it cost to fix P1D66?

The estimated repair cost for P1D66 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat