Question about Cars & Trucks
Failed emission... do I need to replace catalyic converter to solve this problem
P1443 is Purge control solenoid , p0420 is catalytic converter and Egr vale for code p0401
Posted on Mar 28, 2014
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Posted on Jan 02, 2017
P0174 means Fuel Trim too Lean (Bank 2)
P0401 means Exhaust Gas Recirculation Flow Insufficient Detected
P0420 means Catalyst System Efficiency Below Threshold (Bank 1)
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Posted on Sep 28, 2009
okay po442 isevap leak check gas cap amd right front tower in engine check evap line for broken hose,po131 bad o2 sensor top sensor on rear exhaust manifold,po420 is bad catalyic converter but could be o2 sensor.i would replace o2 first reset eng lingt and go from there, hope this helps good luck.
Posted on Oct 07, 2009
1996 ford escort runs fine with full power but check engine light comes on p1443 and i changed gas cap the light still comes on?
Posted on Jan 09, 2010
DTC P1443 EVAP Purge Control Solenoid '2' Circuit
Check the evap line and components for damage. Has a tune up ever been done?
Posted on Jul 14, 2010
Well, the po401 is saying is that the egr valve has restricted flow. After changing the egr and the tube, something else is causing the restriction. a more thorough diagnosis is recommended. The po420 code sounds like a possible catalyst failure or an o2 sensor failure.
Posted on Oct 16, 2010
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