HomeIgnition > SensorsStandard Ignition PC681 Engine Crankshaft Position Sensor
Part #: PC681

Standard Ignition PC681 Engine Crankshaft Position Sensor

⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A8 Quattro
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Reliable Engine Crankshaft Position Sensor for Audi A8 Quattro

The Standard Ignition PC681 Engine Crankshaft Position Sensor is designed specifically for Audi A8 Quattro models. This sensor plays a critical role in engine management by accurately monitoring the crankshaft's position and speed, ensuring optimal engine performance and efficiency.

  • Compatible with Audi A8 Quattro vehicles
  • Part number PC681 for precise identification
  • Engine crankshaft position sensor type for accurate timing data
  • Durable construction for consistent performance
  • Direct replacement part meeting OEM specifications

Detailed Description of the PC681 Crankshaft Position Sensor

The Standard Ignition PC681 is an engine crankshaft position sensor engineered to provide reliable and accurate feedback to the engine control unit (ECU) of Audi A8 Quattro models. By detecting the exact position and rotational speed of the crankshaft, this sensor helps regulate ignition timing and fuel injection. Proper function of this sensor is essential for smooth engine operation, fuel efficiency, and emission control. The PC681 is manufactured to meet or exceed OEM standards, ensuring compatibility and durability under various driving conditions.

Common Issues Addressed by the PC681 Sensor

  • Engine misfires or rough idling due to inaccurate crankshaft data
  • Difficulty starting the engine or intermittent stalling
  • Check engine light triggered by crankshaft sensor faults
  • Poor fuel economy related to timing errors
  • Reduced engine performance or hesitation during acceleration

Installation Notes and Tips for Audi A8 Quattro

When installing the Standard Ignition PC681 sensor, ensure the engine is cool and the battery is disconnected to prevent electrical hazards. Locate the crankshaft position sensor near the engine block, typically mounted close to the crankshaft pulley. Remove the old sensor carefully to avoid damaging the mounting area or wiring harness. Install the new PC681 sensor securely, reconnect wiring, and clear any diagnostic trouble codes using an OBD-II scanner if necessary. Proper installation will restore accurate crankshaft position readings and engine performance.

Quality Assurance and Warranty Information

Standard Ignition parts, including the PC681 crankshaft position sensor, are manufactured to meet stringent quality standards. Each sensor undergoes rigorous testing to ensure reliable operation and durability. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship, providing confidence in the product's longevity and performance.

BrandStandard Ignition
Part NumberPC681
Connector GenderFemale
Connector ShapeOval
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006AudiA8 Quattro4.2LV8N/A
2005AudiA8 Quattro4.2LV8N/A
2004AudiA8 QuattroN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0261210245077905381J180-065319-0309235-16255S196871-513773257CPSB10072CSA2247CSS1181CSS1681SS12038

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.