Catalytic Converter

What is a Catalytic Converter?

The Catalytic Converter is part of the car Exhaust System system. We have 5 associated problem symptoms connected to it.

We also have 68 owner problems that mention it.

What problems can be caused by a faulty Catalytic Converter?
68 problems that mention the Catalytic Converter

Showing the latest 10, see more problems here

Turning over but won't start

Code throws up immobiliser fault. Had new fuel pump, fuel filter, cam sensor, throttle body, plugs and coils. Car cranks but no spark. Ran perfectly then after turning off won't start

2008 Skoda Octavia 1.6fsi manual
Posted: Apr 20, 2022
Engine stalled; starter will not turn over engine; waited 10 minutes and started turned over engine, engine started but stopped after drive engaged

No problem with car for several years; today engine stalled at 8:00 pm, lights on; rolled to edge of road; turned key fully anticlockwise and then clockwise to restart engine, heard click of relay but...

2004 Mercedes Benz A Class 190 petrol automatic
Posted: Feb 27, 2022
Cut Out and Wont Start

My Alternator Light came on and on trying to get the car home (3miles) the ABS and Power Steering lights came on, then the car cut out and will not start again, isn't even cranking. I have tried putt...

2007 Ford Fiesta Zetec S 1.6 TDCI
Posted: Jan 28, 2022
Using a lot of oil

Hi, my daughter has a Citroen C3 with around £48k miles. It seems to be using a lot of oil but garage has said that these cars use a lot. There is now an engine management light on and garage is sugg...

2014 Citroen C3 1.0 vtr pure tech
Posted: Jan 20, 2022
Temperature gauge fluctuating

temperature gauge fluctuating, until it gets up to temperature. then remains steady at 90. but until then it beeps saying engine temp too hot, then goes to zero. last year, when coming up to temperatu...

2007 Peugeot 207 1.4 petrol
Posted: Oct 1, 2021
Front passenger door not locking/unlocking

Front and rear doors lock stuck in locked position, I renewed both locking mech and back door is now fine but front door still not working, ie stays locked when operated in any way key/fob.. I welcome...

2006 Volkswagen Golf 2.0 tdi Sport
Posted: Jul 23, 2021
Fuel pump relay not triggering.

Car won't start. Traced to fuel pump relay not operating. Replacement relay makes no difference but removing top of relay and pressing contacts together cures problem. Car starts and runs no proble...

2008 Skoda Octavia 1.9 tdi
Posted: Nov 6, 2020
Rumbling under feet and middle of car

When driving from start funny rumbling noise under feet and down middle of car when idling no noise ?

2004 Citroen Xsara Picasso Dears Picasso desire petrol auto.
Posted: Aug 20, 2020
Fan comes on too quick

my fan,it kicks in within 10 minutes of driving the car had the problem checked out and the guy replaced the temperature sensor and it's wiring +plug, but problem still persists,i recently had oil,pl...

2009 Peugeot 308 1.4
Posted: Jan 17, 2020
Engine Management Light On

The engine management light is on. When tested, comes up with a message 'Bank 1 Oxygen Sensor' . But it is not the oxygen sensor. Engine runs fine. What is the next step to take.

2014 Ford Fiesta 1L Eco-Booster
Posted: Sep 17, 2018
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