OBDII Code List

P0204 MAZDA - Injector Circuit Open Cylinder 4

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty fuel injector 4
  • Fuel Injector 4 harness is open or shorted
  • Fuel injector 4 circuit poor electrical connection

When is the code detected?

The P0204 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 4.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • The engine may be harder to start
  • Engine hesitation

P0204 Mazda Description

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0204 code when the resistance or voltage drop at the injector 4 is out of specifications.
OBDII Code P0204 Mazda - Injector Circuit Open Cylinder 4 -

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Related Information

P0204 MAZDA Comments

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