I have a 2002 Chevrolet Malibu, 65,000 miles, purchased used last august. The check engine light has been going off and on for three months, and has been on steady in the last two weeks. When the light is on, the car hesitates when you accelerate in low speeds. I had an engine diagnostics test done which came back with the codes: P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) and P0717 Input/Turbine Speed Sensor Circuit No Signal last thursday (two weeks ago).
I replaced the knock sensor in the car last weekend and then reset the battery/computer and it ran great for three days (190 miles, mostly interstate). Today the engine light came back on it started running the same as before. I took it to Auto Zone and it once again has the code P0327 for the knock sensor. They "erased" the code from my car and now it runs better again. I bought a new knock sensor from the store and am hoping that the one I put in last weekend was just a bad one.
Does anyone have any experience with this or could shed some light on this situation? I can't just keep buying knock sensors, so if this one doesn't fix it, what else could I look for? Could something else be causing the knock sensor to have "low input" other than the knock sensor itself? Thanks in advance for any help!
have the same problem?
Wednesday, August 16th, 2006 AT 5:05 PM