[ Ссылка ] - Code Reader Bluetooth OBD2 (I couldn't find the brand that I have, but this looks the same)
I couldn't find the Intake Air Resonator on Amazon, but the Toyota Part Number is: 178930A060 or 17893-0A060
[ Ссылка ] - New Air Intake Hose Air Cleaner Hose 2pcs 17881-0A060 Replacement For 2000-2004 Toyota Avalon (These are the two smaller intake hoses to the throttle body)
[ Ссылка ] - Toyota 17882-0A010 Air Cleaner Hose (This is the single intake hose between the air filter housing and the intake resonator)
[ Ссылка ] - New Genuine Toyota MAF Sensor
Just a quick video showing how I found and fixed a vacuum leak and reset the check engine light on a 2001 Toyota Avalon. This is the same as 2000-2004.
The P0171 and P0174 codes mean that, on both banks of the engine, the fuel system is running weak or a vacuum leak exists allowing unmetered air into the intake causing a lean condition.
After a quick visual inspection I found that the small plastic nipple on the Intake Air Resonator had broken off and the hose wasn't connected so air was able to leak into the intake after the MAF sensor.
I happened to have the spare part, but you can also buy the new part along with replacement hoses by clicking on the links above or maybe find one in a junkyard or buy it used online. If I didn't have the part, this would be pretty easy to fix with some epoxy and a small plastic vacuum hose splice or something similar. It's pretty common for the rubber intake hoses to dry out and crack as well which would also cause a vacuum leak. Another thing you may want to check is the MAF sensor. Sometimes they are just dirty and need to be cleaned, or sometimes they just go bad. In this case, it was an easy fix and the check engine light has stayed off.
Thanks for watching!
-Dan the Fix it Man
www.danthefixitman.org
www.amazon.com/shop/danthefixitman
Song used in the video:
'Modern Time' by An Jone
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