What causes P1164 on a Honda?

Primary A/F sensor drifting out of calibration Intake air leaks driving fuel trims beyond sensor range Low fuel pressure leaning the mixture Sensor connector corrosion

How do I fix P1164 on a Honda?

Record long-term and short-term fuel trims at idle and cruise with an HDS scan tool Smoke-test the intake for leaks and check fuel pressure Inspect sensor connectors for green corrosion Replace the primary A/F sensor only after fuel and air faults are ruled out Clear codes and run a full Honda drive cycle to verify

P1164 Primary HO2S No 1 Circuit Range Performance

Q: What does P1164 mean on a Honda?

P1164 — Primary HO2S No 1 Circuit Range Performance. Applies to Civic, Accord, CR-V, Odyssey.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Civic, Accord, CR-V, Odyssey

What does P1164 mean on a Honda?

P1164 — Primary HO2S No 1 Circuit Range Performance. This Honda-enhanced code applies to Civic, Accord, CR-V, Odyssey.

Common causes of P1164

Primary A/F sensor drifting out of calibration
Intake air leaks driving fuel trims beyond sensor range
Low fuel pressure leaning the mixture
Sensor connector corrosion

How to fix P1164

Record long-term and short-term fuel trims at idle and cruise with an HDS scan tool
Smoke-test the intake for leaks and check fuel pressure
Inspect sensor connectors for green corrosion
Replace the primary A/F sensor only after fuel and air faults are ruled out
Clear codes and run a full Honda drive cycle to verify