OBD Guide

P27C4

Pressure Control Solenoid P Intermittent

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 comes on
  • Possible misfires

Causes

  • Open or shorted in the solenoid control circuit
  • Solenoid valve malfunction
  • Poor contact in solenoid connector
  • Wiring harness damage
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the solenoid control circuit for opens and shorts.
  2. Test solenoid resistance
  3. Clean the connector contacts and check the connection
  4. Replace faulty solenoid valve
  5. Check the operation of the engine control unit

Related codes

Error P27C4 by Vehicle Brand