P0204 on Acura: Symptoms, Causes & Fix
Official technical diagnostic wire for fault code P0204 specifically affecting Acura vehicles (MDX, RDX, TLX, Integra, ZDX).
Select Your Acura Model for P0204:
1. Common Symptoms on Acura Vehicles
When Acura Engine Control Modules (ECM) trigger fault code P0204, drivers typically report:
2. Root Causes on Acura Engines
Historical diagnostic claims across Acura engines point to the following failure distribution:
3. Step-by-Step Fix Protocol for Acura
Measure resistance across pins (12–16 ohms). on Acura engines.
Check that ECM pulse reaches the connector. on Acura engines.
Replace the faulty injector with OEM unit. on Acura engines.
Clear DTC memory and confirm smooth operation. on Acura engines.
Equipment for Diagnosing Acura (P0204)
Acura OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Acura.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
4. Acura P0204 Frequently Asked Questions
What does code P0204 mean on a Acura?
On Acura vehicles, P0204 indicates that the Engine Control Module (ECM) detected injector circuit malfunction - cylinder 4. This typically points to Faulty Cylinder 4 fuel injector or Broken wiring harness.
Can I continue driving my Acura with code P0204?
No. Cylinder 4 is disabled, causing rough running and unburned fuel delivery issues. Because this code carries a Critical severity rating on Acura powertrains, we recommend scanning live data values promptly to prevent secondary damage.
How much does it cost to fix code P0204 on a Acura?
Estimated DIY parts cost ranges from $150 - $550 (DIY: $40 - $180), while professional shop repairs at an authorized Acura dealership or independent specialist typically range from $180 to $380 including diagnostic labor.