CODE SAID KNOCK SENSORS, NOW SAYING LOW VOLTAGE INPUT BANK 2, Pontiac Grand Prix GT2

Question

P0332 Pontiac - My engine light originally came on and I had the code read and it said, "Knock sensors".... I had both knock sensors replaced, and had the computer cleared, after driving the car for approx. 3 miles the engine light comes back on. I had the code read again, and it now says low voltage input bank 2. I have searched online to see if there is a wiring harness that can be replaced , to find there is none. It would not pass emissions, unless I keep the code reader hooked up after clearing the codes , I then rush to get to place to have it pass emissions before codes reappear and as soon as I leave the building, the engine light comes right back on. What is typically the next step? My car only has 65000 miles on it and I have taken very good care of it, As you might can tell I am a female, and I know NOTHING about a car. But I love this car and DO NOT want to have to buy a new one if this is going to be an expensive fix. HELP !!! LOL

Answer 1

P0332 Knock sensor Bank 2

Two possible condition are happening, The knock sensor is not withing its assigned voltage range, or the knock sensor is not presenst, or it detected a knock that it can not control. The knock sensor of the Bank 2 is somewhat difficult in replacing , because it sensor extends into a coolant passage, Some tech are more worried about coolant leak after the knock sensor replacement.so they (some tech) apply sealant when they are not suppose to. and it affects the operation of the knock sensor.and it has to be properly torque. Check the coolant level make  sure it is proper,and the oil level.