Hi everyone i hope someone here can help me I recently got a new / old f150 after my 4.2L v6 decided to give up on me, its a 2005 ford F-150 4.6L V8 love the car spent time fixing up minor issues but when i finally ran my codes the only code was P0446 now i checked the entire wiring harness for any decay or rust on the wire and there isn't any i also replaced the gas cap and housing as it needed replacement anyways, I also replaced the Vent canister solenoid valve. It got the point where i removed the entire bed to i can gain access to everything and i cant seem to find the issue. Id like to get this truck on the road as soon as possible because I'm tired of lugging materials in my VW Jetta. Please help I'm desperate and don't want to pay a mechanic i got these trucks to teach myself how to work and fix a car on my own any answers would be helpful.

 

Do
Pinpoint tests for that code in the PCED
Get a smoke tester
Use the green cap under the hood to insert the smoke
Hopefully it's just a cracked hose somewhere

 

Hopefully its Just that, I have been going into crazy deep dives in youtube and google just trying to find answers, everyone sends me to the same place to check for a corroded wire but there isn't one.

Do you know of a good quality but Low cost Smoke Tester that I can buy?

 

Good quality and cheap, no
The Ancel S300 is 69 bucks on Ebay
item number 134734184771
I consider that a cheap one
We all made our own back in 1996 with a coffee can and some walnut shells
Then used a fish tank air pump

 

Yes, absolutely!

NO! P0446 is an ELECTRICAL CIRCUIT FAULT! It is NOT a leak in the evap system. All buying a smoke machine will do is turn your money into smoke.