Keep ignition and fuel-injection events timed to your Audi's crankshaft with the Standard Ignition Engine Crankshaft Position Sensor PC573. It installs as a direct-fit replacement for the listed applications: the 1995-1998 Audi A6, 2000-2002 Audi S4, 2001-2004 Audi A6 Quattro, and 2001-2005 Audi Allroad Quattro.
A crankshaft position sensor monitors the rotational position and speed of the crankshaft and reports that signal to the engine control module, which uses it to schedule ignition timing and fuel delivery.
- Core job: senses crankshaft position and speed and feeds that data to the ECM for spark and injection timing.
- Signs it may need replacing: a no-start or hard-start condition, intermittent stalling, misfires, or a check engine light — diagnose the cause before replacing, since these symptoms can have other sources.
- Direct-fit application: designed to replace the original sensor on the listed Audi models above.
If a failed crankshaft position sensor is the cause of your driveability trouble, this PC573 replaces it. Manufacturer part number PC573.
Frequently Asked Questions
What does this crankshaft position sensor do?
It monitors the crankshaft's rotational position and speed and sends that signal to the engine control module, which uses it to time ignition and fuel injection.
Which vehicles does the PC573 fit?
It is a direct-fit replacement for the 1995-1998 Audi A6, 2000-2002 Audi S4, 2001-2004 Audi A6 Quattro, and 2001-2005 Audi Allroad Quattro.
What are signs this sensor may need replacing?
Common signs include a no-start or hard-start condition, intermittent stalling, misfires, or a check engine light. Diagnose the cause first, as these can have other sources.
Will replacing this sensor fix my stalling?
If a failed crankshaft position sensor is the cause, this PC573 replaces it. Confirm the sensor is at fault before replacing, since stalling can stem from other components.
What is the manufacturer part number?
The manufacturer part number is PC573 from Standard Ignition.
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