I have this code come up on my 2006 , 2.2 litre hhr and my book says it may be a Knock sensor no. 1 circuit range or performance problem [number 1 or single sensor] could someone explain this in laymans terms to me and where this is located and any idea of price to repair. Thank you all for all your information and what you do with these vehicles thank Doug

 

 

If it needs a new Knock sensor how much am I looking at for a repair bill, thanks Doug

 

First off , I recommend checking the connections for the knock sensor per

https://www.obd-codes.com/p0326


There is the electrical connection then just the one bolt , make sure it’s clean and tight

 

The price of the sensor will vary of course depending on where you buy it - amazon CA has one for $35 + shipping!!! -
It literally is a 5 minute job to change - so it depends on what your mechanic will charge. If you are handy and have tools, it is an easy DIY job in your driveway.

 

Wrench Monkey is a bit pricey for an off brand

https://www.thewrenchmonkey.ca/auto-...nation-sensor/





I’d go with the AC Delco from RockAuto don’t forget their discount code!

 

a sidenote: if you are doing a search for that PO326 code, note that it is actually P0(zero)326

 

Where did you see anything about a defective sensor? The code means that it is working. Do you see post #2?

I can delete it if you think it is a waste of time. Yes, that sounds a bit snarky. I spent 20 minutes on post #2.

 

The engine light was on and a friend scanned it and the code po326 was there so i figured the sensor was no good, if not that whats causing the engine light to come on, doug

 

Can you see post #2?

That answers your original question and has a troubleshooting guide.

If not try using a PC instead of a phone.