Parts for your 2005 Honda Accord-Crank angle sensor

2005 Honda Accord crank angle sensor (CKP): what it does and how to look after it

Technical sources including the Honda Accord 2003–2007 factory service manual (Helm), Honda ServiceNews guidance on CKP diagnostics, and professional repair databases (Mitchell1/ProDemand and ALLDATA) confirm the 2005 Honda Accord is fitted with a crank angle sensor, formally called the crankshaft position (CKP) sensor. It’s essential to engine management and is monitored by the ECU with fault codes such as P0335 and P0336 when signals go out of spec.

On this Accord, the CKP reads a toothed wheel on the crank to tell the ECU exactly where the crank is and how fast it’s spinning. That info is used to fire the spark at the right moment, meter fuel injection precisely, and validate cam/crank correlation for smooth running and emissions. It also helps the ECU detect misfires. On the 2.4L four-cylinder, the sensor is mounted low at the front of the engine near the crank pulley/oil pump area. On the 3.0L V6, it sits behind the lower timing cover near the crank sprocket.

While it isn’t a scheduled “service item” like oil or filters, the CKP sensor benefits from a bit of attention during servicing. A quick look under the bonnet for oil leaks around the front crank seal, and a check that the CKP connector and harness aren’t chafed or soaked in grime, goes a long way. If the sensor fails, expect hard starting, random stalling, uneven idle, a dead tach during crank, or the MIL lighting up with CKP-related codes.

• Typical symptoms of a crook CKP: long crank/no start, intermittent cut-out, rough running, MIL with P0335/P0336, and poor economy.
• Good practice: use a quality OEM-equivalent sensor and a fresh O-ring, keep the connector clean and clipped properly.
• No special “relearn” is usually needed on Hondas after CKP replacement—clear codes, let it idle, and take a short drive so the ECU trims settle.

DIYers with a basic tool kit can usually swap the CKP on the 2.4L without drama, the V6 is tighter and may take longer. Disconnect the battery, lift and safely support the car, unplug the sensor, remove its retaining fastener, swap the O-ring, fit the new unit, and route the loom exactly as Honda intended. After refitting, clear any codes and road test. If issues persist, check for wiring damage or cam/crank correlation faults rather than throwing more parts at it.

• Technical references: Honda Accord 2003–2007 Factory Service Manual (CKP/CKF system description and diagnostics), Honda ServiceNews (CKP diagnosis), and professional databases (Mitchell1/ProDemand, ALLDATA) confirming CKP fitment and DTCs.

FAQs

Does a 2005 Accord have a crank angle sensor?
Yes. Honda calls it the crankshaft position (CKP) sensor. It’s vital for spark and fuel control. On the 2.4L it’s at the front of the engine near the crank pulley, on the 3.0L V6 it’s tucked behind the lower timing cover.

What fault codes point to a bad CKP on a 2005 Accord?
Common ones are P0335 (Crankshaft Position Sensor Circuit) and P0336 (Range/Performance). You may also see a cam/crank correlation code like P0016 if the ECU can’t reconcile signals, which can be a sensor, wiring, or timing issue.

Do I need to perform a relearn after replacing the CKP?
Generally no on Hondas of this era. Clear the codes, start the engine, let it idle for a couple of minutes with all accessories off, then go for a short drive. If the MIL returns, re-check wiring, connectors, and mechanical timing.