Traditional gasoline car fault
Search fault code and browse forum case posts.
This page is designed for quick diagnosis on gasoline vehicles by combining code lookup with real discussion cases. Enter a fault code to filter related topics, then compare symptom context such as cold start behavior, acceleration load, fuel-trim deviation, ignition misfire pattern, and recent maintenance history. Many codes can be triggered by shared root causes, so use cross-checks from multiple posts before replacing sensors, coils, injectors, or catalytic components.
2002 Honda CR-V 2.4L: P1259, P1166, P1167, P1077 - Diagnosis and Fixes After Replacing O2 Sensor
My 2002 Honda CR-V with a 2.4L engine is exhibiting poor performance under load and has triggered four diagnostic trouble codes: P1259, P1166, P1167, and P1077. I have already r...
2002 honda crv 2.4l | P10772002 Honda CR-V EX OBDII Codes P1166 and P1167: Do These Indicate a Catalytic Converter or Oxygen Sensor Issue?
My 2002 Honda CR-V EX is showing OBDII diagnostic codes P1166 and P1167. I believe these relate to the oxygen sensors located before and after the catalytic converter. Do both c...
2002 Honda CR-V EX | P1166P1166/P1167 Fault Code on 2000 Honda Accord 4Cyl F23A4 Engine - Open Loop O2 Sensor Issue
I'm experiencing a P1166 and P1167 diagnostic trouble code on my 2000 Honda Accord with the 4-cylinder F23A4 engine. My ProScan laptop shows an open-loop reading from the oxygen...
2000 Honda Accord | P1166P1167 Fault Code on 2000 Honda Accord: Front O2 Sensor Heating Circuit Issue
I recently purchased a 2000 Honda Accord with just under 100,000 miles, bought used about a year ago at approximately 82,000 miles. Last week, the Check Engine Light (CEL) came ...
2000 Honda Accord | P11671999 Honda Accord EX Check Engine Code P1167: Primary HO2S Heater System Fault
My 1999 Honda Accord EX is displaying check engine light with fault code P1167 and flash code 41. According to the OEM definition, this indicates a problem with the Primary Oxyg...
1999 Honda Accord EX | P1167Practical workflow for fault-code troubleshooting
Start by confirming battery voltage and reading freeze-frame data, then inspect wiring and connectors before replacing parts. If the code returns after clearing, record the exact driving or idling condition when it reappears. Prefer case threads with complete repair feedback, because confirmed outcomes provide stronger guidance than one-time symptom descriptions. Following a step-by-step workflow reduces repeated repairs and lowers total diagnosis time.