Fuel System
Code P0204
Injector Circuit Cylinder 4
Plain English Meaning:Injector issue in cylinder 4
⚠️
Yellow: Drive with Caution
May cause engine imbalance
P0204 Symptoms
- •Rough idle hesitation
Most Common Causes of P0204
1Injector failure wiring issue
P0204 Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Test injector flow
Typical Fix Paths & Estimated Costs
Replace injector $150–$500
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Parts for P0204 Repair
Common replacement parts for fuel system codes. (Paid links)
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