Question about Cars & Trucks
Failed emission with p1443,po401 and po420. do I need to replace catalyic converter or how do I repair the problem... trying to sell work van.
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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
plz check the fuel and carborater first then go for silencer (if your car runned above 15000 kms got repair shop) even u can neglet, coz thees error come during winter sesion [they are related to carben and moister]
Posted on Jun 23, 2010
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