I have a 98 Nissa Maxima and the check engine light is on. Its reading back that its the Knock Sensor but the sensor was recently replaced and the light comes back on about a day after being cleared.
Can't figure out whats going on, and without getting the check engine cleared for 72 hours I can't get a MA state car inspection.
If the car is pinging you will set a knock sensor code.'
This comes from bad gas and running lean., You really need this professionally inspected to rule out the basics. I have seen alot of nissans with the knock sensor code stored but the light is still off.
Fill up the tank with high octane chevron and some techron injector cleaner and clear the light. If it stays off for a couple days then go get it inspected. Even if the code is stored it will still pass as long as the light is still off and the monitors have run.
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