Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold
Hi John Unfortunately the car just would not misbehave (fortunate for the customer ). So we just fitted the new catalyst. One thing that did become apparent was that the monolith was loose & disintegrating. I dont think it was severe enough to be causing a blockage, but it wasn’t something I expected to see after a simple misfire fault. Probably a coincidence I suppose. I did take some pre & post O2 sensor captures at various rev ranges with the new catalyst. If anyone is interested I shall post them. Cheers all Dave
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 Ford Fiesta 1.4 2002 - P0420 Catalyst System Efficiency Below Threshold # - Dave Hill March 26, 2007, 11:15 pm
- Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold - george brockis March 28, 2007, 8:58 pm
- Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold - Dave F March 29, 2007, 8:15 am
- Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold - Peter Warman March 29, 2007, 9:35 am
- Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold - Phil Dunmore March 29, 2007, 8:59 pm
- Pre & Post cat sensors at various engine speeds (Animated) - Dave Hill May 28, 2007, 5:22 pm
- Re: Ford Fiesta 1.4 2002 - P0420 Catalyst System Efficiency Below Threshold # - Dick Saunders March 18, 2009, 8:56 am
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on April 18, 2007, 9:44 pm, in reply to "Re: Fiesta 1.4 02 P0420 Catalyst System Efficiency Below Threshold"