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P0201AcuraAcura Integra HubAll Acura P0201Critical Severity

P0201 on Acura Integra

Injector Circuit Malfunction - Cylinder 1

Factory diagnostic protocol and troubleshooting wire for fault code P0201 specifically for the Acura Integra (2023–2026, 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)).

Verified OEM Telemetry & Field Repair Tree
Acura Integra2023–2026
Acura Integra
Sedan1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Integra SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$150 - $550 (DIY: $40 - $180)
Parts & Labor DIY
Check P0201 On Another Acura Model:
Diagnose P0201 on Specific Integra Model Year:

1. Symptoms of P0201 on Acura Integra

When the Engine Control Module (ECM/PCM) on your Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)) logs fault code P0201, drivers commonly observe:

Flashing or steady Check Engine Light on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Severe engine shaking, shuddering, and rough running on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Dramatic loss of acceleration power on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Accompanying code P0301 (Cylinder 1 Misfire) on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Acura Integra OBD-II Port Location
The 16-pin diagnostic connector is located Under driver dash, right of steering column. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Acura Integra

Historical warranty claims and technical repair bulletins for Acura Integra point to the following failure distribution:

55%
Failed, open, or shorted fuel injector solenoid on Cylinder 1 (Acura OEM Part)
25%
Damaged or chewed wiring harness to Cylinder 1 injector (Acura OEM Part)
12%
Loose or corroded injector connector clip (Acura OEM Part)
8%
Faulty injector driver circuit in the ECM / PCM (Acura OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Acura Integra.

3. Step-by-Step DIY Repair Guide for Acura Integra

01
Check Cylinder 1 Injector Connector

Locate Cylinder 1 fuel injector. Ensure connector is securely clicked in and wires are not frayed. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Flashlight
02
Test Injector Coil Resistance

Unplug connector and measure resistance across the two injector pins. Normal is 11–16 ohms for high-impedance injectors. If open (OL) or shorted (0 ohms), replace injector. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Digital Multimeter
03
Test Pulse Signal with Noid Light

Plug a noid light into the harness connector and crank engine. Rapid flashing confirms PCM driver is pulsing the circuit. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Noid Light Kit
04
Replace Cylinder 1 Fuel Injector

Relieve fuel rail pressure, unbolt fuel rail mounting bolts, gently pull rail up, remove retaining clip, and replace Cylinder 1 injector with new OEM unit with lubricated O-rings. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: Fuel Line Tool, Socket Set, Clean Engine Oil for O-rings
05
Clear Trouble Codes & Test Drive

Turn key to ON to prime fuel system, check for fuel rail leaks, start engine, clear DTCs, and verify smooth idle. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Acura Integra (P0201)

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Direct-Fit Replacement Part

Acura Integra OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Acura Integra.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Acura Integra

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Acura Integra:

4. Acura Integra P0201 FAQs

What causes code P0201 to trigger on a Acura Integra?

On the Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)), P0201 is most frequently caused by Failed, open, or shorted fuel injector solenoid on Cylinder 1 or Damaged or chewed wiring harness to Cylinder 1 injector.

Where is the OBD-II port located on my Acura Integra?

On the Acura Integra, the 16-pin DLC diagnostic connector is located Under driver dash, right of steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Acura Integra with code P0201?

No. Dead injector on Cylinder 1 causes immediate dead misfire, severe shaking, and unburned air/fuel delivery imbalance. Given that P0201 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.