P0430 FORD - Catalyst System Efficiency Below Threshold Bank 2
- Exhaust tube
- Intake air leaks
- Fuel injectors may be faulty
- Fuel injector leaks
- Spark plugs may be faulty
- Improper ignition timing
- Engine Control Module (ECM)
User Submitted Video
- Three way catalyst converter Bank 1 does not have enough oxygen storage capacity.
The Engine Control Module (ECM) monitors the switching frequency ratio of heated oxygen sensors 1 (front O2 sensor) and heated oxygen sensors 2 (rear O2 sensor).
A three way catalyst converter (Manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase.
When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed.
P0430 1998 FORD F150
P0430 1999 FORD F150
P0430 2000 FORD F150
P0430 2001 FORD F150
P0430 2002 FORD F150
P0430 2003 FORD F150
P0430 2006 FORD FUSION
P0430 2007 FORD FUSION
P0430 2008 FORD FUSION
P0430 2009 FORD FUSION
P0430 2010 FORD FUSION
P0430 2011 FORD FUSION
P0430 2012 FORD FUSION
is it the oxygen sensor or maf sensor ?...
could i gut them and it would be okay and increase the mpg...
P0430 err code on a 07 f150 5.4 truck runs fine 200k miles. But I'm getting err code. since it's ru...
stars fine loses all power after going down road code p0430cwslso...
Getting the code on my 2003 Ford escape. I replaced the bank 2 CAT and the O2 sensor (last one on th...
Any information is appreciated. Thanks