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P0172 on Acura Integra: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0172 (System Too Rich (Bank 1) - Symptoms, Causes & Step-by-Step Fix) specifically on the Acura Integra (2023–2026, 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)).

Acura Integra
DIY Parts Estimate
$30 - $280 (DIY Clean: $15)
Integra OEM Fitment
Shop Labor Quote
$180 – $380
Based on $130/hr labor
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0172 On Another Acura Model:
Acura MDXAcura Integra

1. Symptoms of P0172 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 P0172, drivers commonly observe:

Check Engine Light on on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Strong unburnt fuel odor from exhaust on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Black carbon soot around exhaust tip on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Rough idle and engine bogging under throttle on Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP))
Noticeable drop in MPG 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%
Faulty or leaking fuel injector (Acura OEM Part)
25%
Contaminated Mass Air Flow (MAF) sensor (Acura OEM Part)
12%
Stuck closed EVAP canister purge valve (Acura OEM Part)
8%
Excessive fuel pressure regulator failure (Acura OEM Part)

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

01
Clean MAF Sensor and Throttle Body

Use dedicated MAF cleaner to remove carbon buildup from sensor wires. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

02
Check Short Term & Long Term Fuel Trims

Use live OBD-II scanner data; negative trims beyond -10% indicate the ECU is cutting fuel. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

03
Inspect Fuel Injector Leak-Down

Perform a fuel pressure leak-down test to identify injectors leaking raw gasoline into cylinders while parked. on the Acura Integra equipped with 1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP).

Other Common Fault Codes on Acura Integra

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

4. Acura Integra P0172 FAQs

What causes code P0172 to trigger on a Acura Integra?

On the Acura Integra (1.5L VTEC Turbo (200HP) / 2.0L VTEC Turbo (Type S 320HP)), P0172 is most frequently caused by Faulty or leaking fuel injector or Contaminated Mass Air Flow (MAF) sensor.

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 P0172?

Driveable short distances, but unburnt fuel can damage catalytic converters. Given that P0172 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.