Check engine P0449 confused
 

I was getting a code P0449 which is the Evap vent. When I left work my check engine light was not on like it usually is and i got a dash warning saying tighten gas cap. I just got a new gas cap. Im going to replace the vent next week. Im getting a P0332 also knock sen.

Probably a dirty vent valve, and change the knock sensor. Usually its the one further up on the block. Water gets in and damages the sensor. Put some high temp rtv around the hole for the sensor and it should be good to go

So u know how easy it is to change the knock sensor?

I believe the knock sensor resides in the ecu.

If its like mine was, you have to pull the intake manifold off. Took around 3 hours to do

How hard was it?

Not hard at all just took some time. Gotta remember where everything plugs into. The injector rails have to come out along with all the wiring. What year is the truck?

2006. Hope the sensor isn't to much

The sensor itself wasn't expensive, just takes a lil bit of know how to replace it. But it's not hard at all

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does 20$ sound right?