How can I fix this issue?

Asked by coreymirt Dec 11, 2015 at 10:14 AM about the 2003 Pontiac Sunfire Base

Question type: Maintenance & Repair

Just a few weeks ago, my check engine light came on with a P0327 code for "knock sensor 1 circuit low input". Yesterday I had the knock sensor replaced with a new one and the light and codes reset. Today the light is back on and the codes are the same. What could possibly be the problem?

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