Crankshaft position sensor

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Apr 6, 2026 | 06:16 PM

Saemetric

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From: NM

Crankshaft position sensor

Settle an argument with a friend I said the S3
4.2 engine does not have a crankshaft or camshaft position sensor. Am I correct.

Apr 6, 2026 | 06:42 PM

Jose

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From: Florida

Quote:

Originally Posted by Saemetric

Settle an argument with a friend I said the S3 4.2 engine does not have a crankshaft or camshaft position sensor. Am I correct.

No crankshaft ?? I'm pretty sure it does, but No CPS for sure.

Apr 6, 2026 | 06:54 PM

Saemetric

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From: NM

Should have said crankshaft position sensor or camshaft position sensor.👌

Apr 6, 2026 | 07:47 PM

Jagboi64

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From: Calgary, Canada

Correct. No need for a cam position sensor, as it has a distributor. The EFI is fairly crude by today's standards, it receives a trigger pulse from the ignition module for engine speed and batch fires the injectors. No attempt is made to synchronize the injector firing with crank position.