myf16 Report post Posted July 31, 2022 (edited) I have a 2009 Edge with a P0430 code (front bank catalyst efficiency). I want to start by changing the downstream oxygen sensor, which is very easily accessible. I want to use Ford parts or as close to their performance as possible. What are the Ford part numbers for upstream and downstream oxygen sensors? What company makes the Ford-branded O2 sensors? Bosch? I wouldn't buy a Brand X sensor, but I can get an NGK 22500 with connector for $32. Edited to add: I looked at the voltage outputs from all 4 sensors, and they are working great. It's the front catalyst that's not doing anything. Edited August 1, 2022 by myf16 1 Share this post Link to post Share on other sites
WWWPerfA_ZN0W Report post Posted August 1, 2022 check out rockauto.com or any online ford dealer such as fordpartsgiant.com 2 Share this post Link to post Share on other sites
enigma-2 Report post Posted August 4, 2022 May be better to take to car to a professional mechanic rather than fire a parts cannon at it. While a O2 sensor can cause this code, so can a faulty catalytic converter, engine misfire, leaking fuel injector, exhaust leak & an O2 sensor that has improper readings (not just voltage output but correct analog readings). 1 Share this post Link to post Share on other sites
Victor Report post Posted October 7, 2022 (edited) On 7/31/2022 at 9:12 AM, myf16 said: I have a 2009 Edge with a P0430 code (front bank catalyst efficiency). I want to start by changing the downstream oxygen sensor, which is very easily accessible. I want to use Ford parts or as close to their performance as possible. What are the Ford part numbers for upstream and downstream oxygen sensors? What company makes the Ford-branded O2 sensors? Bosch? I wouldn't buy a Brand X sensor, but I can get an NGK 22500 with connector for $32. Edited to add: I looked at the voltage outputs from all 4 sensors, and they are working great. It's the front catalyst that's not Edited October 7, 2022 by Victor Share this post Link to post Share on other sites
DILLARD000 Report post Posted October 21, 2022 (edited) OBD2 DiagTroubleCode p0430 = Exhaust CatCon#2\Left\Front Efficiency Low How many miles on Vehicle\OxSensors\CatCons? OxSensors slowly degrade\fail with Miles\Time as they're chemical-based sensors that deplete with use\age; should be changed every 100kMiles\10Years, along with SparkPlugs+Wires; so if still running 2009 factory OxSensors they're well overdue to be renewed. Old worn out OxSensors tend to bias the Fuel\Air mixture towards rich, so they cost you Mileage+Money & will cause the CatCons to run hot. Your vehicle has 4 OxSensors; 2 UpStream + 2 DownStream = 1 in each ExhaustManifold + 1 in each CatCon. All four OxSensors are 4WireNarrowBand type, are operationally alike & materially similar, excepting longer\shorter 4WireCables. MotorCraft or Bosch (Ford Factory Supplier) is recommended; avoid cheap Asian copies as they're notorious for failing within weeks\months after install. A Bosch 15719 with 24i00 0m610 Long Cable+Plug is good to replace any Ford 4WireNarrowBand Sensor, just ZipTie extra cable away from Hot\Moving parts. The FordMotorCraft parts are 7t4z-9f472-a\7t4z-9f593-a\5f9z-9g444-ab\dy1056, but no need to pay jacked up dealership prices, just buy the Bosch sensors. Edited October 21, 2022 by DILLARD000 1 Share this post Link to post Share on other sites
enigma-2 Report post Posted October 23, 2022 On 10/20/2022 at 11:09 PM, DILLARD000 said: MotorCraft or Bosch (Ford Factory Supplier) is recommended Thought NTK was the OE supplier in 09? 1 Share this post Link to post Share on other sites
DILLARD000 Report post Posted October 29, 2022 (edited) On 10/23/2022 at 1:21 AM, enigma-2 said: Thought NTK was the OE supplier in 09? Could be, not sure about 2009, my 2008 had original\factory OxSensors made by Bosch, before they were renewed a while back, again with Bosch. Edited October 29, 2022 by DILLARD000 Share this post Link to post Share on other sites
enigma-2 Report post Posted October 30, 2022 Thought the OEM were branded as Motorcraft? Were yours branded Bosch? Share this post Link to post Share on other sites