Knock sensor

[Elroy Blue]

My son has a 2010 1.6 Mazda 3.
He's recently had an intermittent engine management light, which has become more on than off the last few days.
Used a code reader which came up with. P0328 Knock sensor high voltage.
The position of the sensor is behind the manifold, which will need removing to change the sensor. He needs the car for his work and will need to make daily runs up the m/way the next few weeks.
Will it cause any damage if he continues to drive it? The car doesn't seem to be running any different other than the EML light is on.

[HJG]

It will likely revert to a 'safe' engine map. Will be OK short term.

[fatjon]

It’s more likely the plug or wiring than the sensor. They are a very simple device, not much to go wrong.

[TwinKam]

Don't fall into the trap of replacing parts just because they throw up a code... maybe it really is detecting a high level of knocking!
What fuel is he running?

[Elroy Blue]

No idea what fuel he puts in but we've run some fuel cleaner through it and still get the on/off engine light. The concesus from a couple of mechanics is because the code says 'knock sensor high voltage' there's probably a failure in the plug or wiring.
Part is £80 from mazda and it's an hours job. The manifold has to come off so not something I want to do on a cold driveway.
Was going to do it at my local Mazda garage as they were only £20 more than the usual Indy I use. But then they said they would charge a minimum of £130 extra to plug their sensor in to confirm the code. Indy place does it for free and I've already used a mates super expensive scanner so I know it's the only code that's showing.