Oil sensor switch code p0521

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Apr 27, 2019 | 05:55 PM

Bro eric70

Thread Starter

Joined: Apr 2019

Posts: 1

Oil sensor switch code p0521

I have 07 Monte CarloSS 5.3 AFM engine. I replaced the oil sensor switch and filter under it ,but the check engine light is still coming back on with the same code.Oil change was done as well 5w30 Castrol standard oil . Please help.

May 2, 2019 | 06:15 PM

NewJersey Art

Joined: Dec 2014

Posts: 13

I think when I did mine, I disconnected the battery for 5 minutes

Jun 10, 2019 | 06:04 AM

Old03SSDriver

Joined: May 2015

Posts: 39

From: Akron Ohio

Same here.

Code came back after scan tool reset. I'm thinking ground wires.

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