Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2001INTEGRA GS, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SELF-DIAGNOSTICSDIAGNOSTIC TESTSDTC P0133: PRIMARY HEATED OXYGEN SENSOR (H02S-1) SLOW RESPONSE
2001 Acura Integra GS, 2D Coupe, Standard
DTC P0133: Primary Heated Oxygen Sensor (H02S-1) Slow Response
2001 Acura Integra GS, 2D Coupe, StandardSECTION DTC P0133: Primary Heated Oxygen Sensor (H02S-1) Slow Response
NOTE:
If DTC P0131, P0132 and/or P0135 are set, trouble shoot those DTCs before proceeding.
- Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM. Start engine and run at 3000 RPM, with no loads and transmission in Park or Neutral, until radiator fan comes on. Allow engine to idle. Connect SCS Service Connector (07PAZ-0010100). See Figure. Test drive vehicle at 55 MPH, with transmission in "D4" position (A/T) or 5th gear (M/T), until readiness code comes on.
- If DTC P0133 resets, replace H02S-1. If DTC P0133 does not reset, problem is intermittent. System is functioning properly at this time. Check for poor connections or loose wire(s) between H02S-1 4-pin connector terminal No. 1 and PCM 31-pin connector terminal No. 16 (White wire) and between H02S-1 4-pin connector terminal No. 2 (Green/Black) and PCM 31-pin connector terminal No. 18 (Green/Blue wire) and between H02S-1 4-pin connector terminal No. 4 (Black/White wire) and PCM 31-pin terminal connector No. 1 (Orange/Black wire). Repair as necessary. See WIRING DIAGRAMS article.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.