P0358

Symptoms

• Misfire in cylinder(s) controlled by coil H
• Unstable idle, body shaking
• Reduced engine power
• Increased fuel and oil consumption
• Check Engine Light Flashing During Misfire

Causes

• Break in the primary winding of the ignition coil H
• Open circuit or short circuit in the primary circuit wiring
• Oxidation or damage to the coil connector
• Malfunction of the control transistor in the ECU
• Mechanical damage to the coil (case crack, moisture ingress)

How to Fix

1. Read codes, identify cylinder(s) associated with coil H
2. Visually inspect coil H for cracks, traces of breakdown, moisture
3. Check the coil connector - oxidation of contacts, reliability of fixation
4. Measure the resistance of the primary winding (norm: 0.5–2 Ohm), if there is a break - infinity
5. Swap coil H with a known good one to confirm
6. Replace ignition coil H

Related codes

Error P0358 by Vehicle Brand