Mechanics

PO401

1996 Toyota Camry • 203,000 miles


smell
sometimes smoke
muffler noise or hesitation rattle sound
engine light on troubleshooting code when check does po401 damage engine
I think also there exaust leak in muffler cause of smell can it trigger po401
Avatar
MRRELIZ7
June 18, 2013.



Start and run engine at idle air shold escape form filter in pic. Check resistance of piece with engine off it shold be 33-39 ohms at 68 degrees then check for continuity between each pole and body of valve if there is replace it.


Hmac300
Jun 20, 2013.