What is code po446 - 2003 Pontiac Grand Am

YOU REPLACED PARTS FOR NOTHING ! P0446 Chevrolet Evaporative Emission Vent System Performance Chevy Impala Check Engine Light Codes P0446 P0451 EVAP Trouble HERE WATCH A REAL TECH.

Google your PO446 Code & read up on the fault code


Codes have nothing to do with parts or the need to replace any

Type:OBD P0446

Google any codes you get
1999 Buick Century OBD PO446

more likely replace vent valve.

Code 123 is a problem with the throttle position sensor circuit.
Code 335 is a problem with the crank position sensor circuit.
And code 446 is for a EVAP control valve problem.
These components would need to be tested to find out if they are faulty.

Generic Code --not GM

PO-446 Evap Control System Vent Circuit Malfunction

2001 camry code po440,po441,po446
what kind of problem and how can be solved
sam

I don't have a manual on any Kia's but I would GOOGLE these codes to see how many options you may have

p0446 is an evap code for incorrect purge flow, check the rear vacume switching valve. its above the rear sub frame

Check and verify you gas cap is installed and tight. Clear codes and drive to see if code returns.