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valentina_neumann22

Crankshaft Sensor Error

Hi, I have a 2000 Lexus SC with a gasoline engine. The check engine light is on, and I'm experiencing reduced engine power, poor response, and higher fuel consumption. Mileage is at 50979 km. I ran a scan and got a 'Crankshaft to camshaft reference value' error. Could a defective crankshaft sensor cause this?

Summary of the thread

The conversation revolves around a 2000 Lexus SC experiencing reduced engine power, poor response, and higher fuel consumption, with a diagnostic scan revealing a 'Crankshaft to camshaft reference value' error. The initial suspicion was a defective crankshaft sensor, but a worn or misaligned timing belt was also considered a potential cause. Ultimately, the issue was confirmed to be a defective crankshaft sensor, which was replaced, resolving the problem and restoring the car's performance.

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4 comment(s)

gert_moon83

Sounds familiar. I had a similar issue with my SC. Have you checked the timing belt? A misaligned or worn timing belt can also throw off the crankshaft/camshaft reference and trigger those symptoms.

valentina_neumann22 (community.author)

Timing belt? I thought the crankshaft sensor was the likely culprit. How can I tell if the timing belt is the problem?

gert_moon83

Well, a faulty sensor is possible. But a worn timing belt can slip and cause a similar reference error. Honestly, it's hard to diagnose without proper tools. Given the symptoms, I'd take it to a workshop for a proper diagnostic.

valentina_neumann22 (community.author)

Thanks, I took it to a workshop as you suggested. Turns out the crankshaft sensor was defective after all. The repair cost 340€ and now the car is running smoothly again.

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LEXUS

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SC