engine codes

i have a 95 blazer. the check engine light is on i had it scanned and got these codes- p0326 knock sensor 1 ckt range/pref bank 1 or 1 sensor and p0441 evap emission control system purge flow fault.
can anyone tell me what this means and how to fix this also where to locate this?

thanks

You need to replace the driver's side knock sensor and service the purge solenoid on your evap charcoal canister.

thank you so much! can u tell me the location of these?

I suggest you pick up a haynes or chilton's repair manual for your truck to help you in the future.

Knock sensor is on the driver's side center.

I don't know where the purge solenoid is on your truck seing I have never yet had to service one yet.

The purge solenoid runs across the drivers side of the upper plenum... Kinda looks like to small vac diaphrams housed in plastic connected by about 1-1/2 inches of 3/8 rubber hose....But just do the knock sensor first (sits between plugs 3 and 5 and has a single wire coming off of it. To remove it use a 22mm deepwell socket. When you pull it, immediately put in the new one as you will drop some coolant...

And make sure you use some thread seal tape on it before you install it.

they usually come with orange sealant on it..

I am just saying if it doesn't not to install it without any thread sealant on it.